hp LaserJet 2300 series printer service
hp LaserJet 2300 series printer service manual _____________
© Copyright Hewlett-Packard Company, 2003 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Part number: Q2472-90911 Edition 1, 5/2003 Warranty Trademark credits The information contained in this document is subject to change without notice. Adobe® and PostScript® are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions.
Contents 1 Product description Printer configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Printer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Specifications . . . . . . . . . . . . . . .
2 Installation Site requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer space requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interface ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Printer maintenance Periodic inspection of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Cleaning the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Cleaning the fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Cleaning the outside of the printer . . . . . . . . . . . . . . . . . .
6 Removal and replacement Removal and replacement strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Troubleshooting Troubleshooting process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Preliminary operating checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Basic fault isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Troubleshooting process flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Parts and diagrams Ordering parts and supplies and getting support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consumables, accessories, and supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Figure 42. Figure 43. Figure 44. Figure 45. Figure 46.
Figure 53. Figure 54. Figure 55. Figure 56. Figure 57. Figure 58. Figure 59. Figure 60. Figure 61. Figure 62. Figure 63. Figure 64. Figure 65. Figure 66. Figure 67. Figure 68. Figure 69. Figure 70. Figure 71. Figure 72. Figure 73. Figure 74. Figure 75. Figure 76. Figure 77. Figure 78. Figure 79. Figure 80. Figure 81. Figure 82. Figure 83. Figure 84. Figure 85. Figure 86. Figure 87. Figure 88. Figure 89. Figure 90. Figure 91. Figure 92. Figure 93. Figure 94. Figure 95. Figure 96. Figure 97. Figure 98.
Figure 112. Figure 113. Figure 114. Figure 115. Figure 116. Figure 117. Figure 118. Figure 119. Figure 120. Figure 121. Figure 122. Figure 123. Figure 124. Figure 125. Figure 126. Figure 127. Figure 128. Figure 129. Figure 130. Figure 131. Figure 132. Figure 133. Figure 134. ENWW General printer-component locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Locations of switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 Figures ENWW
Tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Table 27. Table 28. Table 29. Table 30. Table 31. Table 32. Table 33. Table 34. Table 35. Table 36. Table 37. Table 38. Table 39. Table 40. Table 41. Table 42. Table 43. ENWW Features for each configuration . . . . . . . . . . . . . . . . . . . . . . .
14 Tables ENWW
1 Product description Chapter contents Printer configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printer configurations The HP LaserJet 2300 series printer is available in six configurations. Note The illustrations in this guide are based on the HP LaserJet 2300 printer model unless otherwise stated. To find out which HP LaserJet 2300 configuration you have, look at the label on the front of the printer. HP LaserJet 2300L The HP LaserJet 2300L printer prints letter-size paper at speeds up to 20 pages per minute (ppm) or A4-size paper at up to 19 ppm.
Printer features The following table describes the features of the HP LaserJet 2300 series printers. Fast print speed â—Ź â—Ź Built-in duplexing â—Ź Automatic two-sided (duplex) printing is a standard feature of the HP LaserJet 2300d, HP LaserJet 2300dn, and HP LaserJet 2300dtn printers. Print cartridge and status features â—Ź The 6,000-page HP Smart Print Cartridge detects and reports toner status. The no-shake design maximizes toner use.
Interface connections and networking â—Ź â—Ź The printer includes a bidirectional ECP type-B parallel port (IEEE-1284 compliant) and a USB port (compatible with 1.1 and 2.0 lowand full-speed certified devices) The printer has an EIO slot for HP Jetdirect EIO print servers so that you can connect quickly and easily.
Identification The model number and printer serial number are listed on identification labels located inside the top cover (callout 1) and on the rear output bin (callout 2). 2 1 2 Figure 1. Locations of identification labels The model number is alphanumeric. The serial number contains information about the country of origin, as well as the revision level and the production code of the printer. An example of a serial number is USBB123456.
Specifications Physical specifications Table 2. Physical specifications HP LaserJet 2300L, 2300, 2300n, 2300d, 2300dn HP LaserJet 2300dtn (with 500-sheet tray) Height 259.7 mm (10.2 inches) 397.2 mm (15.6 inches) Width 412.8 mm (16.2 inches) 412.8 mm (16.2 inches) Depth (body) 450 mm (17.7 inches) 450 mm (17.7 inches) Weight (with print cartridge) 14.3 kg (31.6 lb) 18.9 kg (41.
Acoustic emissions Table 5. Acoustic emissions specifications1 Sound power level Declared per ISO 9296 Printing (HP LaserJet 2300L at 20 ppm) LWAd = 6.6 bels(A) Printing (all other models at 25 ppm) LWAd = 6.
Product overview Top output bin Top cover Tray 1 I/O cover Tray 2 Control panel Figure 3. DIMM cover Front and right side Rear output bin Power connector Figure 4.
Safety information Print-cartridge and toner safety For information about print-cartridge and toner safety, see the Toner Cartridge Material Safety Data Sheet (MSDS), which can be obtained at http://www.hp.com/go/msds. Handling and storage WARNING! Keep print cartridges and toner particles away from excessive heat, sparks, and open flames. If toner is spilled, avoid breathing in toner particles. Inhalation of toner particles causes respiratory-tract irritation.
Laser safety The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration has implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products that are marketed in the United States. The printer is certified as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968.
Environmental product stewardship program Protecting the environment Hewlett-Packard Company is committed to providing quality products in an environmentally sound manner. This product has been designed with several attributes that minimize impacts on our environment. Ozone production This product generates no appreciable ozone gas (O3).
Material safety data sheet Material safety data sheets (MSDS) can be obtained by contacting the HP LaserJet Supplies website at http://www.hp.com/go/msds . HP Printing Supplies Environmental Program information Since 1990, the HP Printing Supplies Returns and Recycling Program has collected millions of used LaserJet print cartridges that otherwise might have been discarded in the world’s landfills.
Service approach Bench-repair warranty The warranty for this product is “return to bench” for a period of one year from the date of purchase. This means that customers who need warranty repair must return their printer to an HP repair center or an Authorized Service Provider (ASP). See “Reseller sales and service support” on page 28. HP Express Exchange Through Customer Care Centers in the United States and Canada, customers have an option to initiate Express Exchange.
World Wide Web Printer drivers, updated HP printer software, and product and support information can be obtained from the following URL: in the U.S., http://www.hp.com/support/lj2300 Printer drivers can be obtained from the following sites: â—Ź China, ftp://www.hp.com.cn/support/lj2300 â—Ź Japan, ftp://www.jpn.hp.com/support/lj2300 â—Ź Korea, http://www.hp.co.kr/support/lj2300 â—Ź Taiwan, http://www.hp.com.tw/support/lj2300 or the local driver website, http://www.dds.com.
2 Installation Chapter contents Site requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer space requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interface ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Media specifications . . . . . . . . . . . . . . . . . .
Site requirements Operating environment The electrical and environmental specifications must be maintained to ensure the correct operation of this printer. Consider the following points before installing the printer: 30 Installation ● Install in a well-ventilated, dust-free area. ● Install on a level, flat, and continuous surface that can support the printer’s weight. Make sure all four printer feet are level. Do not install on carpet or other soft surfaces.
Printer space requirements 412.8 mm (16.25 inches) 450.3 mm (17.73 inches) Figure 5. Top view 407.5 mm (16 inches) 961.7 mm (37.86 inches) Figure 6.
487.4 mm (19.2 inches) Side view (with an optional 250-sheet tray) Figure 8. Side view (with an optional 500-sheet tray 543.4 mm (21.4 inches) Figure 7.
Interface ports The HP LaserJet 2300 printer has two interface ports: â—Ź IEEE-1284B Type B parallel port â—Ź USB port (compatible with 1.1 and 2.0 low- and full-speed certified devices) The HP LaserJet 2300n, HP LaserJet 2300dn, and HP LaserJet 2300dtn printers also include an HP Jetdirect EIO print server card that contains a 10/100Base-TX port. You can purchase an HP Jetdirect EIO print server card for the other HP LaserJet 2300 series printers. See Chapter 8 for information about ordering accessories.
Media specifications General media specifications The HP LaserJet 2300 series printers accept a variety of media, such as cut-sheet paper (including up to 100 percent recycled-fiber-content paper), envelopes, labels, transparencies, and custom-size paper. Properties such as weight, composition, grain, and moisture content are important factors that affect printer performance and output quality.
Media input options The printer comes with up to three paper trays. The printer automatically selects the requested media from the correct tray if that media is loaded in any of the trays. If the media is not available, a message on the control panel prompts you to select the media or tray that you want instead.
Optional 250-sheet tray (tray 2 or tray 3) paper sizes A 250-sheet tray (tray 2) can be purchased as an accessory if the printer did not come with a tray 3. Optional 250-sheet trays have settings for the following paper sizes: CAUTION â—Ź A4 â—Ź A5 â—Ź B5 (ISO) â—Ź B5 (JIS) â—Ź Letter â—Ź Legal â—Ź Executive â—Ź 8.5 by 13 inches (FoolsCap, Folio, JIS Exec) Load only paper in the optional 250-sheet tray.
Optional 500-sheet tray (tray 3) paper sizes A 500-sheet tray can be purchased as an accessory if the printer did not come with a tray 3. It has settings for the following paper sizes: CAUTION â—Ź A4 â—Ź Letter Load only paper in the optional 500-sheet tray. Other types of print media, such as labels or transparencies, can jam if you try to print on them from either the optional 250-sheet tray or the optional 500-sheet tray. Load other types of media into tray 1 only.
Guidelines for selecting paper For best results, use conventional 80-g/m2 (20-lb) paper. Make sure that the paper is of good quality, and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles, voids, and curled or bent edges. If you are unsure about what type of paper you are loading (such as bond or recycled), check the label on the package of paper. The following problems with paper can cause print-quality deviations, jamming, or damage to the printer. Table 7.
Envelope specifications Envelope construction is critical. Envelope fold lines can vary considerably, not only between manufacturers, but also within a box from the same manufacturer. Successful printing on envelopes depends upon the quality of the envelopes. When selecting envelopes, consider the following components: â—Ź Weight: The weight of the envelope paper should not exceed 105 g/m2 (28 lb) or jamming can occur. â—Ź Construction: Before printing, envelopes should lie flat with less than 6 mm (0.
Envelopes with adhesive strips or flaps Envelopes with a peel-off adhesive strip or with more than one flap that folds over to seal must use adhesives that are compatible with the heat and pressure in the printer. CAUTION The extra flaps and strips might cause wrinkling, creasing, or jams, and can even damage the fuser and separation pad. Envelope storage Proper storage of envelopes contributes to good print quality. Envelopes should be stored flat.
Label specifications When selecting labels, consider the quality of each component: ● Adhesives: The adhesive material should be stable at 200 degrees C (392 degrees F), which is the printer’s fusing temperature. ● Arrangement: Only use labels that have no exposed backing between them. Labels can peel off sheets that have spaces between the labels, causing jams. ● Curl: Before printing, labels must lie flat with no more than 13 mm (0.5 inch) of curl in any direction.
Transparency specifications Transparency construction is critical. Note Use only tray 1 to print transparencies. Send transparencies straight through the printer, entering at tray 1 and exiting from the rear output bin. CAUTION Transparencies that are used in the printer must be able to withstand 200 degrees C (392 degrees F), the printer’s fusing temperature. To avoid damaging the printer, use only transparencies that are recommended for use in laser printers.
Storing print media Ideally, the printing and media storage environment should be at or near room temperature, and not too dry or too humid. Remember that paper is hygroscopic; it absorbs and loses moisture rapidly. Heat works with humidity to damage paper. Heat causes the moisture in paper to evaporate, while cold causes it to condense on the sheets. Heating systems and air conditioners remove most of the humidity from a room.
Testing media specifications The following tests describe ways to make sure that the media meets the specifications listed in this manual and the HP LaserJet Printer Family Print Media Guide. See “Tools and suppliers” on page 49 for help in obtaining tools to perform these tests. Basis-weight field test The basis weight should be indicated on the ream label. If the label is not available, a simple field test can identify the basis weight of paper.
Paper weight equivalence table Use this table to determine approximate equivalent points in weight specifications other than U.S. bond weight. For example, to determine the equivalent of 20-lb U.S. bond-weight paper in U.S. cover-weight paper, locate the bond weight (in row 3, second column) and scan across the row to the cover weight (in the fourth column). The equivalent is 28-b media. Shaded areas indicate a standard weight for that grade. U.S. post- U.S. bond card weight thick(lb) ness* (mm) U.S.
Caliper field test The specified caliper differs with the type of media used. See “Operating environment” on page 30. Use a micrometer to measure for caliper in the field. CAUTION Never use the coarse-adjustment end of the micrometer when measuring for caliper. The coarse adjustment will compress the paper fibers, resulting in an inaccurate reading. For example, if the fibers are compressed, 6 mil paper could measure as few as 3 mils. Always use the fine adjustment to measure for caliper.
Grain field test The grain direction is usually specified on the ream label (written out “long” or “short”). The paper dimensions listed on the label also indicate grain direction. For example, the label for short-grain letter-size paper reads “11 by 8.5" and for long-grain paper reads “8.5 by 11." If the grain direction is not included on the ream label, it can be determined by using a simple wet test. Cut a small square from the corner of a sheet of paper, wet it, and observe the manner in which it curls.
Cut-edge condition field test Use a loupe or maginfying glass to observe the condition of the cut edge. Under magnification, a good edge appears even. A poorly cut edge shows fraying, jagged edges, compressed fibers, and other damage. Furnish (fiber-composition) field test Use paper made from 100 percent chemical wood pulp and/or cotton fiber. Recycled paper that contains no more than 5 percent groundwood is also acceptable. Read the ream label to determine the fiber composition of the paper.
Tools and suppliers Hewlett-Packard neither warrants nor recommends a particular manufacturer, supplier, or tool. Products are subject to change and HP has no control over such changes. However, the following table of tools and their suppliers is provided for convenience. Tool Part Number Supplier Address Paper moisture meter Single-sheet clamp probe 2RRDMP 2R43E Mitchell Instrument 1570DDD Cheroke St.
50 Installation ENWW
3 Operation Chapter contents Control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control-panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Changing control-panel settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printing control-panel menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control-panel menus—user . . . . . . . . . . . . . . . . . . . . . . . .
Control panel This section provides information about the control panel and its features.
Control-panel buttons Button Function (HELP) â—Ź Provides information about the message on the graphical display. (BACK) â—Ź Backs up one level in the menu tree, or backs up one numeric entry. Closes menus if it is held down for more than 1 second. â—Ź PAUSE/RESUME â—Ź â—Ź (UP) (SELECT) Pause: Causes the printer to stop printing the current job and expel all active pages from the paper path. Resume: Returns the printer to the ready or busy state from the menus or the online Help.
Changing control-panel settings For a complete list of menu items and possible values, see “Control-panel menus—user” on page 55. Certain menu options appear only if the associated tray or accessory is installed. For example, the EIO menu appears only if you have an EIO card installed. To change a control-panel setting Note 1 Press (SELECT) to open the menus. 2 Use 3 Some menus might have several submenus.
Control-panel menus—user Retrieve job menu Note The HP color LaserJet 2300 printer and the HP color LaserJet 2300L printer do not include this menu. This menu provides a list of the stored jobs in the printer and access to all the job-storage features. You can print or delete these jobs at the control panel. The section that follows lists the settings and possible values. In the Values column, the default value for each setting is the one with an asterisk (*) next to it.
Information menu The Information menu contains printer information pages that give details about the printer and its configuration. Scroll to the information page that you want and press (SELECT). Table 10. Information menu Item Explanation PRINT MENU MAP The menu map shows the layout and current settings of the control-panel-menu items. For more information, see “To print a control-panel menu map” on page 54. PRINT CONFIGURATION The configuration page shows the current printer configuration.
Paper-handling menu If paper-handling settings are correctly configured at the control panel, you can print by selecting the type and size of paper in the program or printer driver. Some items on this menu (such as duplex and manual feed) are available in the program or printer driver (if the appropriate driver is installed). Program and printer-driver settings override control-panel settings. The following table lists the settings and possible values.
Table 11. Paper-handling menu (continued) 58 Operation Item Values Explanation TRAY 2 TYPE ANY TYPE PLAIN PREPRINTED *LETTERHEAD TRANSPARENCY PREPUNCHED LABELS BOND RECYCLED COLOR ROUGH Sets the value to correspond with the paper type currently loaded in tray 2. TRAY 3 SIZE *ANY SIZE LETTER A4 Sets the value to correspond with the paper size currently loaded in tray 3. NOTE: This menu appears only if a tray 3 is installed.
Configure device menu This menu contains administrative functions. Printing submenu Some items on this menu are available in the program or printer driver (if the appropriate driver is installed). Program and printer-driver settings override control-panel settings. In general, it is better to change these settings in the printer driver, if applicable. The following table lists the settings and possible values.
Table 12. Configure device menu—printing submenu Item Values Explanation MANUAL FEED *OFF ON Feeds the paper manually from tray 1, rather than automatically from a tray. If MANUAL FEED=ON and tray 1 is empty, the printer goes offline when it receives a print job. MANUALLY FEED [PAPER SIZE] appears on the controlpanel display. COURIER FONT *REGULAR DARK Selects the version of Courier font to use: ● REGULAR: The internal Courier font available on the HP LaserJet 4 series printers.
Print-quality submenu Some items on this menu are available in the program or printer driver (if the appropriate driver is installed). Program and printer-driver settings override control-panel settings. In general, it is best to change these settings in the printer driver, if applicable. The following table lists the settings and possible values. In the Values column, the default value for each setting is the one with an asterisk (*) next to it. Table 13.
Table 13. Configure device menu—print-quality submenu Item FUSER MODES PLAIN PREPRINTED LETTERHEAD TRANSPARENCY PREPUNCHED LABELS BOND RECYCLED COLOR CARDSTOCK>164 G/ROUGH ENVELOPE RESTORE MODES Values *NORMAL HIGH1 HIGH2 LOW REDUCE CURL MODE Explanation Configures the fuser mode associated with each paper type. Change the fuser mode only if you are experiencing problems printing on certain paper types. After you select a type of paper, you can select a fuser mode that is available for that type.
Table 13. Configure device menu—print-quality submenu ENWW Item Values RESOLUTION 300 600 *FASTRES 1200 PRORES 1200 Explanation Selects the resolution. All values print at the same speed. 300: Produces draft print quality and can be used for compatibility with the HP LaserJet III family of printers. ● 600: Produces high-quality text printing and can be used for compatibility with the HP LaserJet 4 family of printers.
System-setup submenu Items on this menu affect printer behavior. Configure the printer according to your printing needs. The following table lists the settings and possible values. In the Values column, the default value for each setting is the one with an asterisk (*) next to it. Table 14. Configure device menu—system-setup submenu Item Values Explanation JOB STORAGE LIMIT 1 to 100 (*32) Specifies the number of quick copy jobs that can be stored on the printer.
Table 14. Configure device menu—system-setup submenu Item Values Explanation POWERSAVE TIME 1 MINUTE 15 MINUTES *30 MINUTES 60 MINUTES 90 MINUTES 2 HOURS 4 HOURS Sets how long the printer remains idle before it enters PowerSave mode.
Table 14. Configure device menu—system-setup submenu 66 Operation Item Values Explanation CARTRIDGE LOW *CONTINUE STOP Determines how the printer behaves if the print cartridge is low. The ORDER CARTRIDGE message first appears when about 10 percent of the toner remains in the print cartridge at 5 percent coverage (about 600 pages remaining). Print quality is not guaranteed if you print after receiving this message.
I/O submenu Items on the I/O (input/output) menu affect the communication between the printer and the computer. The submenu appears only when an EIO (enhanced input/output) device is installed in an EIO slot on the printer (such as an HP Jetdirect print server). The contents of the submenu depend on which type of EIO card is installed. If the printer contains an HP Jetdirect print server EIO card, you can configure basic networking parameters by using the submenu.
Table 15. Configure device menu—I/O submenu Item HOST NAME Values Explanation *NPIXXXXXX An alphanumeric string (up to 32 characters long) that is used to identify the device. This name is listed on the Jetdirect configuration page. The default host name is NPIXXXXXX, where XXXXXX is composed of the last six digits of the LAN hardware (MAC) address.
Table 15. Configure device menu—I/O submenu Item Values Explanation *AUTO OFF ALL ROUTES SINGLE ROUTE For a Token Ring network only, specify the NetWare Token Ring Source Routing parameter. AUTO (default): The type of source routing that is required on the network is automatically sensed. OFF: All packets are sent without source routing, and only packets from the same ring are received. ALL ROUTES and SINGLE ROUTE: All packets are sent with source routing (broadcasts and when the route is unknown).
Resets submenu Items on the Resets submenu relate to returning settings to the defaults and changing settings such as PowerSave. The following table lists the settings and possible values. In the Values column, the default value for each setting is the one with an asterisk (*) next to it. Table 16. Configure device menu—resets submenu Item Values Explanation RESTORE FACTORY SETTINGS There is no value to select. Performs a simple reset and restores most of the factory (default) settings.
Diagnostics menu Administrators can use this menu to isolate parts and to troubleshoot jam and print-quality issues. The following table lists the settings and possible values. In the Values column, the default value for each setting is the one with an asterisk (*) next to it. Table 17. Diagnostics menu ENWW Item Values Explanation PRINT EVENT LOG There is no value to select. Press (SELECT) to generate a list of the 50 most recent entries in the event log.
Control-panel menus—service The Service menu is locked and requires a PIN for access. This menu is intended for use by authorized service personnel. The PIN for the HP LaserJet 2300 series printer is: 11230002. Entering service mode 1 Press (SELECT). 2 Use (UP arrow) or (DOWN arrow) to scroll to SERVICE, and then press The message SERVICE USE ONLY appears on the control panel.
4 Printer maintenance Chapter contents Periodic inspection of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the paper path and print-cartridge areas . . . . . . . . . . . . . . . . . . Cleaning the fuser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the outside of the printer . . . . . . . . . . . . . .
Periodic inspection of parts Periodic replacement parts are the parts that should be inspected and, if required, replaced at regular intervals. Failure of these parts can seriously affect the printer’s performance. These parts should be inspected during a regular service visit near the end of their expected life, and any that are found to be worn or damaged should be replaced.
Cleaning the printer Over time, particles of toner and paper accumulate inside the printer. This can cause print-quality problems during printing. Cleaning the printer eliminates or reduces these problems. 2 Cleaning the paper path and print-cartridge areas Clean the paper path and print-cartridge areas every time that you change the print cartridge or whenever print-quality problems occur. As much as possible, keep the printer from dust and debris.
Cleaning the fuser Run the printer cleaning page to remove toner and paper particles that can sometimes accumulate on the fuser. Accumulation of toner and particles can cause specks to appear on the front or back side of your print jobs. (See “Toner specks” on page 212.) To ensure optimum print quality, HP recommends that you use the cleaning page every time that you replace the print cartridge or on an automatic interval that you can set up. The cleaning procedure takes about 2.5 minutes to complete.
Managing the print cartridge This section provides information about HP print cartridges, how to store them, how to identify genuine ones, and their life expectancy. It also provides information about non-HP print cartridges.
Print-cartridge storage Do not remove the print cartridge from its package until you are ready to use it. Print cartridges should be stored in an environment ranging from minus-20 degrees Celsius to 40 degrees Celsius (minus-4 degrees Fahrenheit to 104 degrees Fahrenheit). Store the supply in a horizontal position in a dark, dry location away from heat and magnetic sources. CAUTION To prevent damage to the print cartridge, do not expose it to light for more than a few minutes.
Checking the supply level You can check the supply (toner) level using the printer control panel, the embedded Web server, the printer software, or HP Web Jetadmin. To check the supply level by using the control panel 1 Press (SELECT button) to open the menus. 2 Use 3 Use (UP button) or (DOWN button) to scroll to PRINT SUPPLIES STATUS PAGE, and then press (SELECT button). See “Supplies status page” on page 81 for information about the supplies status page. (UP button) or (SELECT button).
Cartridge-low and cartridge-out conditions The printer alerts you if the print cartridge is low on toner or out of toner. When the cartridge is low on toner When the cartridge is low on toner, the printer control panel shows the ORDER CARTRIDGE message. The ORDER CARTRIDGE message first appears when about 10 percent of the toner remains in the print cartridge (at 5 percent coverage, about 600 pages remaining).
Supplies status page Use the supplies status page to obtain information about the print cartridge that is installed in the printer, the amount of life remaining in the print cartridge, and the number of pages and jobs that have been processed. Note You can also obtain supplies status information in the embedded Web server. For details, see page 79. To print a supplies status page at the control panel 1 Press (SELECT) to open the menus. 2 Use 3 Use (UP) or (SELECT).
82 Printer maintenance ENWW
5 Theory of operation Chapter contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Basic sequence of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Power-on sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Engine control system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Laser/scanner system . . . . . . . . . .
Introduction This chapter presents an overview of the relationships between major components of the HP LaserJet 2300 printer. The following systems are discussed: â—Ź engine control â—Ź laser/scanner â—Ź image formation â—Ź pickup and feed â—Ź formatter Basic sequence of operation Operation sequences are controlled by the CPU in the engine controller PCA. Table 19 describes engine operations for each period of a print operation. Table 19.
Power-on sequence The the following steps describe the sequence from power-on until the printer enters the standby (STBY) mode. ENWW 1 Power-on. 2 CPU initialization. 3 Formatter communication start. 4 Main motor, reverse motor, and fan drive—Reads the paper-detecting status of each sensor in the printer immediately before driving the main motor, and assesses a jam if residual media is detected.
Engine control system The engine control system coordinates all printer functions. It drives the laser/scanner system, the image-formation system, and the pickup and feed system. Figure 16. Engine control system The engine controller PCA controls the operation sequence of the printer.
Laser/scanner system At the laser/scanner assembly, laser beams focus onto the photosensitive drum and discharge the drum's negative potential. This creates a latent electrostatic image, which later is developed into a visible image. The laser diode beams shine onto a scanning mirror. As the mirror rotates, the beams reflect off the mirror and sweep the page from left to right.
Image-formation system The image-formation system, which forms a toner image on media, consists of several interdependent systems. Figure 18.
Image-formation process Laser printing requires the interaction of several different technologies, including electronics, optics, and electrophotographics, to provide a printed page. Each process functions independently and must be coordinated with the other printer processes.
Electrostatic latent-image-formation block Step 1: primary charging A dc bias is applied to the primary charging roller, which transfers a uniform negative potential to the photosensitive drum. Figure 20. Step 1: primary charging Step 2: laser-beam exposure The laser beam scans the photosensitive drum to neutralize negative charges on parts of the drum. An electrostatic latent image is formed on the drum where negative charges were neutralized. Figure 21.
Developing block The developing cylinder comes in contact with the photosensitive drum to deposit toner onto the electrostatic latent image. Note The charges on the exposed area of the drum are shown as positive in figure 22. The charges are actually negative, but they are more positive than the charges on the developing cylinder. Figure 22. Developing block Step 3: developing Toner acquires a negative charge through friction from the developing cylinder and the blade.
Transfer block Step 4: transfer The transfer charging roller, to which a dc positive bias is applied, imparts a positive charge on the print media. When the print media comes in contact with the photosensitive drum, the toner is transferred to the print media. Figure 24. Step 4: transfer Step 5: separation The elasticity of the print media causes its separation from the photosensitive drum. A static charge eliminator aids separation by weakening any electrostatic adhesion. Figure 25.
Fusing block Step 6: fusing The dc negative bias applied to the fusing film strengthens the holding force of the toner on the print media and prevents the toner from scattering. Figure 26.
Drum-cleaning block Step 7: drum cleaning The cleaning blade scrapes the residual toner off of the photosensitive drum and deposits it into the waste toner case. Figure 27. Step 7: drum cleaning Step 8: transfer charging roller cleaning Negatively-charged residual toner on the transfer charging roller is collected by the photosensitive drum when a dc negative bias is applied to the transfer charging roller. Figure 28.
Pickup/feed system When the formatter sends a print command to the engine controller PCB, the main motor and scanner motor start rotating and the fuser heater temperature control starts. The paper-feed system automatically picks print media from tray 1, tray 2, or tray 3 (if installed) and delivers it to the registration roller. Before the media reaches the registration roller, the separation pad separates any excess sheets of media, and the registration shutter corrects the media skew.
Figure 29.
Delivery Figure 30.
Automatic duplexer Figure 31. Automatic duplexer path Figure 32.
Formatter system The formatter system is responsible for the following: â—Ź receiving and processing data from the various printer interfaces â—Ź monitoring control-panel input and relaying printer status information (through the control panel and the I/O) â—Ź developing and coordinating data placement and timing with the print engine â—Ź storing font information and macros â—Ź communicating with the host computer The formatter receives data from the I/O and converts it into a dot image.
Formatter hardware The formatter system contains the following: ● CPU—Is a 266 Mhz RISC microprocessor. ● Read-only memory (ROM)—Stores the dot patterns of internal character sets (fonts) in addition to storing microprocessor control programs. ● Random-access memory (RAM)—Stores printing and font information received from the host system, and can also serve to temporarily store a full page of print-image data before the data is sent to the print engine.
Formatter subsystem Resolution Enhancement technology (300 and 600 dpi only) This subsystem contains circuitry for Resolution Enhancement technology (REt), which modifies the standard video dot data on its way to the engine controller assembly to produce smoothed black-to-white boundaries. The default is on. Print-density adjustment This subsystem controls the line width (boldness) of the print image.
Printer Job Language overview Printer Job Language (PJL) is an integral part of the printer’s configuration, in addition to the standard Printer Command Language (PCL). The printer uses PJL to perform certain functions: ● Two-way communication with the host computer through an IEEE1284 B interface connection. The printer can communicate information to the host, such as the control-panel settings, and the control-panel settings can be set from the host.
Sheet feeders HP LaserJet 2300 series printers can use two optional sheet feeders: the 250-sheet feeder and the 500-sheet feeder. The sheet feeders are driven by the printer and controlled by the printer’s engine controller. The engine controller drives the solenoid at a necessary timing through the sheet feeder PCA. The paper sensor detects media. The sheet feeder picks up media loaded in the cassettes and transports it to the printer.
M903 Paper feeder pickup solenoid drive signal (/FDSN, /FDSOL) Top-of-page detection signal (/TOPSNS) Power supply PCA Top output bin delivery rollers M904 Paper feeder paper detection signal (/FDSNS) Main motor drive signal Reverse motor drive signal Engine controller PCA Paper feeder PCA Main motor Reverse motor Photosensitive drum Registration shutter Feed belts Pressure roller PS2305 SL2002 (SL2001) Transfer charging roller Registration roller Feed rollers PS2003 (PS2001) Feed roller
Media detection The model for media detection is essentially the same for all three trays.The paper sensor levers shown in the following figure detect the presence of media in the trays. If the sensor does not detect any media, the formatter illuminates the display LED until media is added. PS2305 PS2301 SL2002 (SL2001) PS502 PS501 PS3908 PS503 PS1305 PS2003 (PS2001) Figure 35.
Jam detection The following mechanisms detect the presence of media and paper-feed conditions: â—Ź top-of-page sensor (PS2305) â—Ź delivery sensor (PS2301) â—Ź reversed-paper sensor (PS501) â—Ź automatic duplexer pickup paper sensor (PS503) The CPU detects a jam by checking for the presence of media through sensors against the timing stored in the CPU. If the CPU determines a jam, it stops the print operation and notifies the formatter of a jam.
Delivery sensors Delivery delay jam A delivery delay jam is assessed if the media does not reach the delivery sensor (PS2301) within a specified period of time (T) after the top-of-page sensor (PS2305) detects the leading edge. â—Ź paper 270 mm or longer: T = approximately 2.6 seconds â—Ź paper 200 mm to 270 mm: T = approximately 2.7 seconds â—Ź paper shorter than 200 mm: T = approximately 4.6 seconds Delivery stationary jam A.
Automatic duplexer sensors Duplexer pickup delay jam A duplexer pickup delay jam is assessed if the duplexer pickup paper sensor (PS503) does not detect media within 4.9 seconds after the reversed paper sensor (PS501) detects the leading edge. Duplexer pickup stationary jam A duplexer pickup stationary jam is assessed if the duplexer pickup paper sensor (PS503) detects media after about 3.4 seconds has passed since the reversed paper sensor (PS501) detected the trailing edge.
6 Removal and replacement Chapter contents Removal and replacement strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Before you begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I/O cover . . . . . . . . . . . . . . . . . . . . .
Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 250-sheet feeder and 500-sheet feeder pickup roller . . . . . . . . . . . . . . . 176 500-sheet feeder separation pad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and replacement strategies This chapter documents the removal and replacement of the field-replaceable units (FRUs) only. Replace the parts in the reverse order of their removal. If replacement requires difficult or critical installation procedures, the notes that are provided give detailed special instructions. WARNING! To avoid serious injury, unplug the power cable from the power outlet before servicing the printer.
Before you begin 1 Unplug the power and communications cables. 2 Lift the printer off of the optional tray (if installed). 3 Remove the print cartridge. a Open the top door. b Lift the print cartridge straight up and out of the printer. Figure 36. Removing the print cartridge 4 Figure 37. Remove tray 2.
Covers I/O cover 1 Press two release buttons (callout 1) on the back of the I/O cover. 2 Rotate the back of the cover away from the printer to remove the cover. 2 1 Figure 38.
Print server 1 Open or remove the I/O cover (see page 113). 2 Unscrew two thumb screws (callout 1). 3 Remove the print server by pulling it toward the back of the printer. 2 1 Figure 39.
DIMM cover 1 Remove the I/O cover (see page 113). 2 Release two tabs—one at the top of the printer (callout 1) and one inside the tray 2 cavity (callout 2). 2 1 2 Figure 40. ENWW Removing the DIMM cover 3 Pull the cover toward the front of the printer to release the cover from the frame, and then lift the cover away from the printer. 4 Remove the DIMMs from the printer.
Rear cover 1 Remove the following covers: • I/O cover (see page 113) • DIMM cover (page 115) 2 Open the rear output bin and then lift it to an angle that allows you to disengage two pins (callout 1) on the rear guide, one at each side of the bin. 2 1 Figure 41.
3 Lower the rear output bin to the work surface, and then remove two screws (callout 2) from the rear cover. 2 Figure 42.
4 Lift up the rear output bin with one hand and then use a flatblade screwdriver to release two tabs (callout 3)—one on each side of the rear cover—inside the tray 2 cavity. 2 3 Figure 43. Removing the rear cover (3 of 3) 5 Lift the cover away from the printer.
Front cover 1 Remove the following covers: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) 2 Open the top door. 3 Open tray 1. 4 Remove two screws (callout 1) from the front cover. 2 1 Figure 44. Removing the front cover 5 ENWW Lift the cover straight up and away from the printer.
Control panel 1 Remove the following covers • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) 2 Remove three screws (callout 1) from the control panel. 3 Disconnect one connector (callout 2). 2 1 Figure 45. 2 Removing the control panel 4 Lift the control panel away from the printer. Reinstall note Make sure that the connector shown in callout 2 in figure 45 is reconnected correctly.
Top-cover assembly 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) Figure 46. ENWW 2 Open the top door. 3 Use needle nose pliers to pinch the tabs on the coupling and press the tabs through the hole in the top-door arm. 4 Allow the coupling to fall into the printer.
5 Remove two screws (callout 1) from the top cover at the back of the printer. 2 1 Figure 47.
6 Use a flatblade screwdriver to release one tab (callout 2) at the left side of the top cover. 2 Figure 48. Removing the top-cover assembly (3 of 3) 7 ENWW Lift the cover off of the printer.
Left-side cover Remove the following assemblies: 1 Remove the following covers and assemblies • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) 2 Release one tab (callout 1). 3 Rotate the top of the left-side cover away from the printer and then lift the cover off of the printer frame. 2 1 Figure 49.
Power switch 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 On the inside of the left-side cover, pinch two tabs (callout 1) together to release the spring (callout 2). 3 After removing the spring, pinch the two tabs together and press them through the holes in the left-side cover to release the power switch. 2 1 2 Figure 50.
Tray 1 assembly CAUTION 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Open tray 1. 3 Lift tray 1 slightly to align the notch (callout 1) in the tray 1 cover (callout 2) with the hinge pins of the tray 1 hinges (callout 3). 4 Push the right tray 1 hinge to the left while pulling the tray 1 cover to the right to carefully disengage the hinge pin from the tray 1 cover.
Note In figure 52, the tray 1 guide (callout 5; also shown as callout 5 in figure 51 on page 126) is shown in its “closed” position. 7 Open the tray 1 cover, and then slide the tray 1 cover to the left to remove it from its pins (callout 7). 2 5 2 6 Figure 52.
8 Disengage the right and left hinges from the tray 1 guide and then rotate each hinge down to slide it off of its keyed hole (callout 7) in the printer. 2 7 Figure 53.
9 Use needle-nose pliers to unhook two springs (callout 8)—one at each side of the printer frame—and then lift the tray 1 guide away from the printer. 2 8 Figure 54.
Internal assemblies Tray 1 pickup roller 1 Remove the following covers • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) Figure 55. 2 Use a flatblade screwdriver to release the tab on the cam at the right side of the pickup roller. 3 Slide the cam and the white, plastic roller toward the right side of the printer to release the pickup roller.
4 Figure 56. ENWW Rotate the pickup roller and lift it off of the pickup roller shaft.
Pickup sensor flag Figure 57. 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Use a flatblade screwdriver to pry up the sensor flag. 3 Before you remove the pickup sensor flag, examine the position of the torsion spring and the motion of the sensor flag. At reinstallation, the spring must be reinstalled correctly to ensure that the flag’s motion is correct.
Tray 1 separation pad 1 Remove the following covers and assemblies • all covers and the control-panel assembly (see pages 113 through 124) • tray 1 assembly (page 126) 2 Remove one screw (callout 1) from the tray 1 separation-pad assembly. 2 1 Figure 58.
3 Figure 59. Pull the tray 1 separation-pad assembly out of the printer.
4 Figure 60. ENWW Use a flatblade screwdriver to pry the separation pad off of the assembly.
Tray 2 pickup roller 1 Remove tray 2 and place the printer so that it rests on its rear cover. 2 Use a flatblade screwdriver to release the tab on the white, plastic lever (callout 1) at the left side of the tray 2 pickup roller, and then rotate the lever to a position perpendicular to its original position. 2 1 Figure 61.
Figure 62. ENWW 3 Slide the lever toward the left side of the printer and through the hole to remove it. 4 Slide the pickup roller toward the left side of the printer.
5 Use a flatblade screwdriver to release the tab on the lever (callout 2) at the right side of the pickup roller 6 Rotate the lever and slide it toward the right side of the printer in the same manner as the lever on the left side. Sliding the right-side lever releases the pickup roller shaft. 2 Figure 63. Removing the tray 2 pickup roller (3 of 3) 7 Lift the pickup roller out of the printer.
Tray 2 and 250-sheet feeder separation pad 1 Slide tray 2 or the media tray of a 250-sheet feeder out of the printer. 2 Press down the lift plate to lock it in place. 3 Use a flatblade screwdriver to press two tabs (callout 2), releasing the separation pad. 4 Slide the separation pad straight up and out of the tray. 2 2 1 Figure 64.
Fan 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Unplug the fan cable connector (callout 1) from the engine controller PCA. 3 Remove two screws (callout 2) from the fan. 2 1 2 Figure 65. Removing the fan 4 Unthread the fan cable from the cable harness, and then lift the fan away from the printer.
Fuser 1 Remove the following covers: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) 2 Remove two screws (callout 1) from the fuser cover and then lift the fuser cover away from the printer. 2 1 Figure 66.
3 Use a small flatblade screwdriver to disengage the tab on one connector (callout 2) and then unplug the connector. 4 Unplug two connectors (callout 3). 5 Remove two screws (callout 4 and 5). 2 5 2 2 4 Figure 67. 2 3 Removing the fuser (2 of 2) 6 Pull the fuser straight out and away from the printer.
Laser/scanner 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Unplug one cable connector (callout 1) from the engine controller PCA. 3 Unplug the flat, flexible cable (callout 2) from the laser/scanner. 4 Remove four screws (callout 3). 2 2 1 2 3 Figure 68. Removing the laser/scanner 5 Lift the laser/scanner off of the laser/scanner plate.
Laser/scanner plate 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Unplug the fan connector (callout 1; see callout 1 on page 140 for another view of the fan connector) from the engine controller PCA and then unwind the fan cable from the cable holders that are on top of the laser/scanner plate. 3 Unplug the flat, flexible cable (callout 2) from the laser/scanner. 4 Unplug two connectors (callout 3) from the engine controller PCA.
E-label reader Note 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Remove the laser/scanner plate (page 144). 3 Unwind the e-label reader cable (callout 5) from the cable holders that are on top of the laser/scanner plate. Examine the cable routing. Make sure that you loop the cable around the vertical cable holder (callout 6) when you reinstall the e-label reader. 2 5 2 6 Figure 70.
4 Figure 71. Turn the laser/scanner plate over and then use a flatblade screwdriver to pry the e-label reader out of its assembly on the laser/scanner plate.
Formatter 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) 2 Use a flatblade screwdriver to press down the tab at the top of one connector (callout 1) and then unplug the connector. 3 Unplug the flat, flexible cable (callout 2) from the formatter. 4 Remove five screws (callout 3). 2 2 1 Figure 72.
Drive assembly 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) • formatter (page 147) 2 Unplug two connectors (callout 1). 3 Unplug one flat, flexible cable (callout 2) from the engine controller PCA. 4 Remove one grounding screw (callout 3). 2 1 2 2 3 Figure 73.
5 Remove eight screws (callout 4). 2 4 2 5 Figure 74. Removing the drive assembly (2 of 3) Reinstall note Before replacing the screws, make sure that the connector (callout 5) is routed below the drive assembly plate. Do not thread the cable through the holes in the plate.
6 Figure 75. Guide the cables through the hole in the printer frame and then gently rotate the top of the drive assembly away from the printer. Removing the drive assembly (3 of 3) 7 Lift the assembly away from the printer.
Main motor 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) • formatter (page 147) • drive assembly (page 148) 2 Remove three screws (callout 1). 3 Lift the main motor off of the drive assembly. 2 1 Figure 76.
Flat, flexible cable 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) • formatter (page 147) Note 2 Use a flatblade screwdriver to release two tabs (callout 1) on the cable guide. 3 Slide the guide toward the back of the printer and then lift the guide and the flat, flexible cable off of the drive assembly plate.
Engine controller PCA 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) • formatter (page 147) • drive assembly (page 148) 2 Note Use a flatblade screwdriver to pry one connector (callout 1) off of the switch (callout 2). After the connector and the switch are separated, the switch can easily fall out of its place in the printer frame.
3 Unplug two connectors (callout 3). 4 Unplug the flat, flexible cable (callout 4) from the laser/scanner. 2 3 Figure 79.
5 Remove two screws (callouts 5 and 6; callout 6 indicates a grounding screw). 6 Rotate the bottom of the assembly away from the printer to clear two tabs (callout 7) at the top of the assembly and then rotate the top of the assembly away from the printer. 2 7 2 5 Figure 80. 2 6 Removing the engine controller PCA (3 of 5) Reinstall note Make sure that you insert the two tabs (callout 7 in figure 80) into the slots in the printer frame before replacing the screws.
7 Figure 81. Unplug the remaining four connectors and the flat, flexible cable from the engine controller PCA.
8 Remove one screw (callout 7) from the engine controller PCA. 2 7 Figure 82. Removing the engine controller PCA (5 of 5) 9 ENWW Lift the engine controller PCA off of the metal plate.
Solenoid The three solenoids can be removed by removing one screw from each solenoid.
Access plate 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) • formatter (page 147) • drive assembly (page 148) 2 Turn the printer so that the bottom of the printer faces up. 3 Pull the green access-plate release lever (callout 1) and then lift up the access plate slightly. 2 1 Figure 84.
4 Press the spring (callout 2) while rotating the access plate to release the access plate from the printer frame. 2 Figure 85.
5 Lift one corner of the access plate off of the pin (callout 3) and then slide the access plate off of the pin (callout 4) at the opposite side. 2 3 Figure 86.
Power supply 1 Remove the following covers and assemblies: • I/O cover (see page 113) • DIMM cover (page 115) • rear cover (page 116) • front cover (page 119) • control panel (page 120) • top cover assembly (page 121) • formatter (page 147) • drive assembly (page 148) • access plate (page 159) 2 Remove two screws (callout 1) from the media guide and then lift the media guide off of the bottom plate. 2 1 Figure 87.
3 Note Use a small, flatblade screwdriver to release the tab on one connector (callout 2) and then unplug the connector. In figure 88, the fuser has been removed. To remove the power supply from a printer in which the fuser is present, see page 142 for instructions to unplug the three additional connectors. 2 Figure 88.
Note 4 Remove four screws (callout 3) from the bottom plate. 5 Remove one screw (callout 4) from the grounding plate. If the fuser has already been removed, then the grounding plate might fall off of the printer when the screw is removed from the grounding plate. 2 3 2 4 Figure 89.
6 Lift the bottom plate slightly to reveal the power-supply PCA. 7 Release the tab on one connector (callout 5) and then unplug the connector. 2 5 Figure 90.
8 Remove four screws (callout 6) from the power-supply PCA. 2 6 Figure 91.
9 Use needle-nose pliers to pinch the plastic pin (callout 7) and lift the power-supply PCA off of the bottom plate. 2 7 Figure 92.
Reinstall notes Before reinstalling the power-supply PCA, make sure that the six spring-contacts (callout 7) are in place. 2 7 Figure 93.
Top-output-bin delivery assembly 1 Remove the following covers and assemblies: • all covers and the control-panel assembly (see pages 113 through 124) • formatter (page 147) • drive assembly (page 148) 2 Figure 94. ENWW Use a flatblade screwdriver to press the tab on the gear at the right side of the printer, and then slide the gear off of its shaft.
3 Figure 95. Removing the top-output-bin delivery assembly (2 of 3) 4 CAUTION Separate the tabs that secure the bushing to the frame at the left side of the printer. Slide the shaft toward the left side of the printer to clear the hole in the printer frame at the right side. Lifting the shaft before the shaft clears the hole at the right side of the printer frame can damage the shaft. 5 Lift the shaft out of the printer.
6 Note Each roller holder should have a spring attached. Make sure that the springs are in place before reinstalling a roller holder. 7 Figure 96. To remove the small rollers, rotate the roller holders toward the back of the printer until the hinges are clear of obstruction, and then lift the holders off of the printer. Use a flatblade screwdriver to pry the small rollers out of the holders.
Registration-roller assembly 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Remove six screws (callout 1). 2 1 Figure 97.
3 Figure 98. Removing the registration-roller assembly (2 of 2) 4 ENWW Use a flatblade screwdriver to press the tab on the registration roller gear at the right side of the printer, and then slide the gear off of the shaft. Remove the assembly from the printer by lifting the left side of the assembly up and then sliding the assembly toward the left side of the printer so that the shaft clears the hole in the printer frame.
Transfer roller Figure 99. 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Remove the laser/scanner plate (page 144). 3 Use needle-nose pliers to pinch the tabs on the transfer roller bushings, one at each side of the transfer roller. Removing the transfer roller 4 Lift the transfer roller out of the printer. Reinstall note The spring at the left side of the transfer roller should remain attached to the bushing.
Feed belts Note 1 Remove all of the covers and the control-panel assembly (see pages 113 through 124). 2 Remove the laser/scanner plate (page 144). 3 Use a flatblade screwdriver to pry the left end of the paper feed shaft (callout 1) out of the printer. 4 Slide the paper-feed shaft to the left to disengage the right end of the shaft. 5 When the paper-feed shaft is free from its position in the printer, lift the pulleys (callout 2) and slide the feed belts off of the paper-feed shaft.
Trays 250-sheet feeder and 500-sheet feeder pickup roller Note Procedures for removing the pickup roller from a 250-sheet feeder are identical to the procedures for removing the pickup roller from a 500-sheet feeder. In the photographs for these procedures, a 500-sheet feeder is shown. 1 Lift the printer off of the feeder and then remove all of the paper from the feeder. 2 Press down the lift plate and pull the tray out of the feeder. 3 Turn the feeder so that it rests on its back side.
6 Use the flatblade screwdriver to disengage the white, plastic lever (callout 3), and then rotate the tab towards the front of the tray to release the roller shaft. 7 Slide the lever toward the left side of the tray to remove it. Also slide the pickup roller shaft toward the left side of the tray. 2 3 Figure 102.
500-sheet feeder separation pad Note Note See page 139 for procedures for removing the separation pad from a 250-sheet feeder. 1 Slide the media tray out of the 500-sheet feeder and remove media from the feeder. 2 Press down the lift plate (callout 1) The lift plate on 500-sheet feeders does not lock. 3 Use a flatblade screwdriver to release two tabs (callout 2) on the separation pad. 4 Slide the separation pad straight up and off of the feeder. 2 2 1 Figure 103.
7 Troubleshooting Chapter contents Troubleshooting process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preliminary operating checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic fault isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting process flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power-on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting process Preliminary operating checks Make sure that the following conditions are met before troubleshooting a specific printer problem: Note â—Ź The printer is plugged in and power is delivered to the outlet as specified on the power rating label. (See figure 2 on page 19 for a sample identification label and see page 20 for power specifications.) â—Ź The selected tray contains media that has been correctly loaded. (See the getting started guide for information about loading trays.
This list describes the basic questions for the customer to answer and the corresponding troubleshooting section to help quickly define the problem(s). “Power-on” on page 183 Does the printer perform the initialization and power-on sequence? This section contains the procedures for correcting power supply problems. “Troubleshooting with Does the control-panel message indicate an error condition? control-panel messages” on This section contains the procedures for clearing control panel messages.
Troubleshooting process flow Fix fan motor Power-on verification Checks OK? Fix control panel Fix power-on problem NO YES Interpret the Troubleshooting control panel with control message panel messages OK? NO Fix indicated problem YES Media-handling problems Can you print a test page? NO See paperpath troubleshooting Fix paperpath problem Test pages Fix indicated problem Compare information page to a sample Fix problem YES Evaluate configuration pages OK? NO Investigate potential media probl
Power-on It is important to have the printer control panel functional as soon as possible in the troubleshooting process so that the printer’s diagnostics can assist in locating printing errors. Follow these steps to pinpoint power problems quickly. Step 1 Verify that the printer is plugged in to a reliable power source and the power switch is on. Step 2 Verify that the fan and motors rotate. Step 3 Verify that the formatter cables are connected correctly.
Troubleshooting with control-panel messages Printer messages appear on the printer control panel display to relay the normal status of the printer (such as Processing job) or an error condition (such as CLOSE FRONT DOOR) that needs attention. “Interpreting control-panel messages” on page 186 lists the most common messages that require attention or that might raise questions. Messages are listed in alphabetical order first, with numeric messages at the end of the list.
Troubleshooting the control-panel display Try to fix common problems before replacing the control-panel display. No display. If power-on is normal, but the control panel does not work, then try disconnecting and then reconnecting the control panel connectors. Poor display. If the control panel is working, but the display is illegible or shows poor contrast, then check the contrast label (callout 1) on the back of the control panel. 2 1 Figure 105.
Interpreting control-panel messages Message Description Recommended action Access denied menus locked The printer control panel function you are trying to use has been locked to prevent unauthorized access. See your network administrator. Canceling... [JOBNAME] The printer is canceling a job. The message continues while the job is stopped, the paper path is cleared, and any remaining incoming data on the active data channel is received and discarded. No action necessary.
Message Description Recommended action Creating... CLEANING PAGE The printer is generating a cleaning page. No action necessary. DATA RECEIVED One of the following conditions exists: â—Ź The printer received data and is waiting for a form feed. â—Ź The printer is paused and there is a job waiting to print. No action necessary unless the printer is paused. If the printer is paused, the user can press PAUSE/RESUME to process the print job. Deleting...
Message Description Recommended action MANUALLY FEED [TYPE] [SIZE] alternates with The printer is waiting for media to be loaded in tray 1 for manual feed. â—Ź To use another tray press or For help press Perform one of these steps: Load the requested media into the tray 1 and press (SELECT button). â—Ź Press (SELECT button) to use a type and size that are available in another tray.
Message Description Recommended action Processing... copy of The printer is processing the current job. The message indicates that copy number X of the total number of copies (Y) is currently being processed. No action necessary. Processing... from tray [XX] The printer is processing the current job and has begun to transfer pages. No action necessary. Ready The printer is online and ready for data and no status or device attendance messages are pending.
Message Description Recommended action TYPE MISMATCH TRAY [XX]=[TYPE] alternates with Ready The system detected a different type of media from the type specified for the tray in the paper path coming from tray XX. 1 2 For help press 3 4 The printer did not detect the type and size of media requested. The message shows the most likely type and size available and the tray in which they are available.
Message Description Recommended action 13.XX.YZ JAM IN [LOCATION] alternates with A jam has occurred in the specified location. XX is the jam code, Y is the device number, and Z is the device type. Possible locations include: ● TRAY 1 ● TRAY 2 ● TRAY 3 Remove jammed media from the specified location. (See “Jam causes” on page 204.) For help press Note This jam error message also occurs when the media pickup system fails to feed media into the printer (known as a “mis-pick”).
Message Description Recommended action 22 PARALLEL I/O BUFFER OVERFLOW alternates with Too much data was sent to the parallel port. 1 To continue press 2 3 Check for a loose cable connection and be sure to use a high-quality cable. Some non-HP parallel cables might be missing pin connections or might otherwise not conform to the IEEE-1284 specification. (See “Ordering parts and supplies and getting support” on page 242.) This error can occur if the driver you are using is not IEEE-1284 compliant.
Message Description Recommended action 41.5 UNEXPECTED TYPE IN TRAY XX alternates with LOAD TRAY [XX]: The printer detected a paper type different than what it was expecting. 1 2 [TYPE] [SIZE] 3 49.XXYY PRINTER ERROR alternates with To continue turn off then on ENWW A critical firmware error has occurred. XX represents a component code, and YY represents a componentspecific error code. Reload the tray with the correct paper type. Press (SELECT button) to scroll to TRAY XX TYPE=.
Message Description Recommended action 50.X FUSER ERROR A fuser error has occurred. X can equal one of the following: 1 = Low fuser temperature 2 = Fuser warm up service 3 = High fuser temperature 4 = Faulty fuser 5 = Inconsistent fuser 6 = Open fuser 7 = Fuser pressure release mechanism failure Turn the printer power off and then turn the printer power on. For help press 194 Troubleshooting 51.X PRINTER ERROR alternates with To continue turn off then on A temporary printing error occurred.
ENWW Message Description Recommended action 55.X PRINTER ERROR alternates with To continue turn off then on A temporary printing error occurred.
Message Description Recommended action 59.X PRINTER ERROR alternates with To continue turn off then on A temporary motor error occurred. Turn the printer power off, and then X can equal one of the following: turn the printer power on.
Message Description Recommended action 79.XXYY PRINTER ERROR alternates with To continue turn off then on The printer detected a critical hardware error. XX represents the component ID, and YY represents a componentspecific error code. 1 Press CANCEL JOB to clear the print job from the printer memory. Turn the printer power off, and then turn the printer power on. 2 Try printing a job from a different program. If the job prints, go back to the first program and try printing a different file.
Media-handling problems Printing a configuration page The configuration page lists many of the printer’s current settings and properties. To print the configuration page: 1 Press (SELECT). 2 Use (UP arrow) or (SELECT). 3 Use (DOWN arrow) to scroll to INFORMATION, and then press (UP arrow) or (DOWN arrow) to scroll to PRINT CONFIGURATION, and then press (SELECT). The printer produces a configuration page.
Printing a Jetdirect configuration page The printer produces a Jetdirect configuration page when you print a standard configuration page on a printer that has an EIO print-server card installed (see “Printing a configuration page” on page 198). 1 2 3 4 Figure 107. Jetdirect configuration page Jetdirect configuration-page elements ENWW 1 General information lists the HP Jetdirect number, firmware revision, LAN hardware address, selected port, and manufacturing ID.
Printing a usage page A usage page provides details of the number of pages printed since the printer’s installation and an estimated toner coverage percentage. 1 Press (SELECT). 2 Use (UP arrow) or (SELECT). 3 Use (UP arrow) or (DOWN arrow) to scroll to PRINT USAGE PAGE, and then press (SELECT). The printer produces a usage page.
Printing an engine test The engine test verifies that the print engine is functioning correctly. This test is very useful for isolating printer problems, because it does not involve the formatter. Because the engine test prints a full page of lines across the entire printable area, it is also useful for checking and adjusting registration. The engine test prints from the first tray found that contains media and can be activated with the formatter installed or removed.
The printer prints an engine test page, like the page shown below. Figure 109.
Jam troubleshooting Jams occur in the printer when print media does not reach or clear a photosensor along the printer paper path within a specific amount of time. The following table contains general questions and topics to explore before troubleshooting. Problem Action What is the frequency Verify with the customer. See “Troubleshooting with control-panel messages” on of the jams (for page 184. example: continuous, Check the event log.
Jam causes Occasionally, media can become jammed during a print job. The following are some of the causes: ● Trays are loaded incorrectly or overfilled. ● Tray 2 or tray 3 is removed during a print job. ● The top cover is opened during a print job. ● The media that is being used does not meet HP specifications (see “Media specifications” on page 34). ● The media that is being used is outside of the supported size range (see “Media specifications” on page 34.
1 Output areas Jams in this area might result in loose toner on the page. If you get any toner on your clothes or hands, wash them in cold water. (Hot water sets toner into the fabric.) 1 2 Open the top cover and remove the print cartridge. Open the rear output bin. Note It is necessary to open the top cover in order to release the rear output gearing and remove the media easily.
1 Paper-access area Jams in the paper access area can occur only when using the two-sided printing capabilities of the HP LaserJet 2300d printer, HP LaserJet 2300dn printer, or HP LaserJet 2300dtn printer. 2 3 1 Remove tray 2 from the printer. 2 Pull the green lever on the left front of the tray 2 opening to open the paper access plate. 3 Reach in and pull out the jammed paper.
1 Tray 2 or tray 3 input area Note If paper has entered the print-cartridge area, follow the instructions in “Print-cartridge area” on page 208. It is easier to remove paper from the print-cartridge area than from the paper-feed area. 2 3 4 1 Slide out tray 2 or tray 3 to expose the jam. 2 Remove any misfed paper by pulling it out by the visible edge. Make sure that all of the paper is aligned in the tray.
1 Print-cartridge area Jams in this area might result in loose toner on the page. If you get any toner on your clothes or hands, wash them in cold water. (Hot water sets toner into the fabric.) 2 3 4 1 Open the top cover. 2 Remove the print cartridge. CAUTION To prevent damage, do not expose the print cartridge to light for more than a few minutes. Place a piece of paper over the top of the print cartridge to shield it while it is out of the printer. 3 Carefully lift up the registration plate.
Image-formation troubleshooting When you are working with customers, obtain a print sample before troubleshooting the printer. Ask the customer to describe the quality expected from the printer. The print sample also helps clarify the customer’s description of the problem. Often an image-formation problem can be linked to media that is outside the specifications that Hewlett-Packard has established for optimum printer performance.
Check the print cartridge Image-formation defects are often the result of problems with the print cartridge. Use the following list to verify that the print cartridge is still operating correctly. Note Non-HP print cartridges can cause many types of image-formation defects. When the customer experiences image defects, check the print cartridges to verify that they are HP products. Perform all of the following checks before replacing the print cartridge.
Image-defect tables Judgments about print quality are subjective. This section of the manual helps define print-quality defects and the factors that affect print quality. The print samples shown in the following figures illustrate some print-quality defects. Keep copies of print-quality defects that you encounter in the field and explanations of their causes. You can use these samples for future reference. Note Non-HP print cartridges can cause many of the problems that are illustrated here.
Table 24. Image defects Problem Cause Solution Light print or fade Wrong toner-density setting is in use. â—Ź Through the software, adjust the toner density setting. Make sure EconoMode is off. The print media does not meet printer specifications or is stored incorrectly. â—Ź Print a few more pages to see if the problem corrects itself. Turn over the stack of media in the tray. Also try rotating the media 180 degrees.
Table 24. Image defects (continued) Problem Cause Solution Gray background The print media does not meet printer specifications or is stored incorrectly. ● ● ● Toner smear The printer’s operating environment does not meet specifications. ● Make sure the printer’s operating environment meets specifications. The wrong toner density setting is in use. ● Through the software, adjust the toner density setting. Make sure EconoMode is off. The print cartridge is defective.
Table 24. Image defects (continued) Problem Cause Solution Misformed characters Maintenance is due. â—Ź â—Ź Print a few more pages to see if the problem corrects itself. Make sure that the printer operating environment meets specifications. Print a demo page to verify that the problem persists. Perform maintenance actions as required. The print media might be too smooth. â—Ź Check the print media type and quality. The print media does not meet printer specifications or is stored incorrectly.
Table 24. Image defects (continued) Problem Cause Solution Toner scatter outline The print media does not meet printer specifications or is stored incorrectly. â—Ź â—Ź â—Ź Maintenance due. â—Ź â—Ź â—Ź Ghosting (light) This type of defect might occur when using preprinted forms, a large quantity of narrow media, or a fuser mode that is set too high for your media.
Table 24. Image defects (continued) Problem Cause Solution White or missing image/blank page No toner is available for print. â—Ź Remove sealing tape or replace the print cartridge. Look for the REPLACE CARTRIDGE message on the control panel display. Defective laser shutter. â—Ź Check that the laser shutter operates freely when the print cartridge is installed. Toner cartridge guide damaged, incorrectly positioned, or missing. â—Ź Make sure the guide is installed correctly above the print cartridge.
Media troubleshooting Media defects can cause jams and image defects. If the previously described conditions are corrected and do not eliminate the printing problem, continue to investigate the media as the source of the defect. Problems with print media are sometimes difficult to detect. Follow a standard troubleshooting procedure to help isolate media-related problems. The steps to follow are: ● “Determine the problem source: print media or printer” on page 217. ● “Isolate a paper path” on page 217.
Determine where media jams occur Check where media stops when a jam occurs. Types of jams include: â—Ź input paper jams â—Ź internal paper-path jams â—Ź paper access plate â—Ź output-bin jams Determine whether the printer is experiencing misfeeds or multifeed jams The following are some possible causes of misfeeds or multifeed jams: â—Ź The media might be too stiff. Check basis weight and measure caliper. (See pages 44 through 48 for information about testing media.) â—Ź The paper might be too smooth.
Isolate a media type When jams and other problems occur frequently, it is often because the customer is using a special paper. Customers must only use print media that conforms to all Hewlett-Packard specifications, and should always test media before purchasing large quantities. Media should be tested before storage to verify quality printing results. Then, if problems arise, storage or handling conditions can isolate the most likely cause.
Embossed media Embossed media is not recommended for use in HP LaserJet printers. Media is embossed by stamping an image into the media by compressing the media fibers together at approximately 200 degrees C (392 degrees F), and sometimes by applying a thin metal foil to the surface. The printer fusing process can loosen the foil; loose foil can interfere with the mechanical and electronic operation of the printer. Embossed paper, with or without foil, can also cause multifeed jams.
Envelopes Because of the variety of folds and cuts available, it is difficult to specify the types of envelopes that perform well with HP LaserJet printers. It is very important to test a sample envelope before purchasing a large quantity. The specifications for media also apply to envelopes. Avoid envelopes that contain contact adhesives. Following are a few recommendations for feeding envelopes: â—Ź â—Ź â—Ź â—Ź Closely inspect the leading edge of the envelopes before feeding them into the printer.
Transparencies Printing on transparencies presents a special set of challenges. The surface resistance of a transparency can be infinite, causing the transparency to act like paper with 0 percent moisture content. This can result in streaks and smudging. Static charges can accumulate on some transparent stock and cause multifeed jams. Also, certain brands and types of transparencies do not tolerate exposure to the fuser. The user should only select transparencies that meet HP specifications.
Evaluate media use practices Handling and loading Often differences in techniques, missed steps, or media-handling methods are responsible for problems. Be sure the media is loaded correctly in the printer. Note Make sure that all printer users are observing these guidelines. Printer maintenance General cleanliness of the printer is the most important part of printer maintenance. Printers using media that creates a lot of dust and debris might require an aggressive maintenance schedule.
Media storage environment Media storage environmental conditions directly affect the feed operation. Note Do not purchase more media than can be easily used in a short time (about 3 months). Media stored for long periods experiences heat and moisture extremes that can be damaging. Planning is important to prevent damage to a large supply of media. Hewlett-Packard neither warrants nor recommends the use of a particular brand of paper or print media.
Communication troubleshooting Communications check Note Communication problems are normally the customer’s responsibility. Time spent attempting to resolve these problems might not be covered by the Hewlett-Packard warranty. Refer the customer to the network administrator for assistance in troubleshooting network problems. Test message After the printer is installed, verify communications between the printer and the IBM-compatible computer.
Troubleshooting tools Repetitive defect ruler Repetitive print defects are usually caused by a specific roller in the printer or the print cartridge. Use the figure below to isolate the cause of repetitive print defects. Align the first occurrence of the defect with the top of the “ruler” (at the top or bottom of the misprinted page), and measure to the next occurrence of the defect to determine the roller in question. When the defect pattern matches the pattern of the ruler, replace the indicated roller.
Half-self-test functional check The electrophotographic process can be subdivided into the following stages: â—Ź Cleaning (removes excess toner from drum surface) â—Ź Conditioning (places a uniform electrical charge on drum) â—Ź Writing (laser strikes surface of drum to create latent image) â—Ź Developing (forms the toner image on drum) â—Ź Transferring (charges transfer the image to paper) â—Ź Fusing (heat and pressure produces a permanent image) The purpose of the half-self-test check is to determine whic
Performing a self test To initiate a self test: 1 Turn off the printer. 2 Press 3 Release 4 Use (UP arrow) or (DOWN arrow) to scroll to SELF TEST, and then press (SELECT). The status lights cycle, the printer initializes, and then the printer prints a configuration page. (SELECT) and hold it while turning on the printer. (SELECT) when all three status lights are lit. Performing a paper path test To initiate a paper path test: 1 Press (SELECT). 2 Use (UP arrow) or (SELECT).
Resetting the printer Cold reset A cold reset returns the control panel settings to the default factory settings. Note A cold reset also resets EIO. To retain EIO settings, remove the EIO card before performing a cold reset. To perform a cold reset, complete the following steps: 1 Turn off the printer. 2 Press and hold 3 When all three status lights are lit, release 4 Use (SELECT), and turn on the printer. (UP arrow) or (SELECT). (DOWN arrow) to scroll to COLD RESET, and press (SELECT).
Reference diagrams 2 3 2 4 2 5 2 2 6 2 7 2 8 2 1 Figure 112.
2 2 3 2 1 Figure 113.
2 3 2 2 4 2 5 2 6 2 7 2 1 Figure 114.
2 1 2 2 3 Figure 115.
2 2 1 Figure 116.
Figure 117.
Figure 118.
Figure 119.
Figure 120.
Figure 121.
240 Troubleshooting ENWW
8 Parts and diagrams Chapter contents Ordering parts and supplies and getting support . . . . . . . . . . . . . . . . . . . . . Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consumables, accessories, and supplies. . . . . . . . . . . . . . . . . . . . . . . . Common fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illustrations and parts lists. . . . . . . . . . . . . . . . . . . . . . . . . .
Ordering parts and supplies and getting support Parts How to use the parts lists and diagrams The figures in this chapter illustrate the major subassemblies in the printer and their component parts. A table accompanies each exploded-view diagram. Each table lists reference numbers for the field-replaceable units (FRU) that appear in the diagram, along with their part numbers and names. Parts for which no part numbers are listed are not FRUs and cannot be ordered.
Consumables, accessories, and supplies Table 28.
Common fasteners Table 29.
Illustrations and parts lists Assembly locations Top cover assembly Power supply assembly Engine controller assembly Drive assembly Fuser Registration assembly Tray 2 Figure 122.
Covers Covers and panels Figure 123.
Table 30.
Top cover assembly Figure 124.
Table 31.
Internal components Internal components (1 of 4) Figure 125.
Table 32.
Internal components (2 of 4) Figure 126.
Table 33.
Internal components (3 of 4) Figure 127.
Table 34.
Internal components (4 of 4) Figure 128.
Table 35.
Power-supply assembly Figure 129.
Table 36.
Pickup assembly Figure 130.
Table 37.
Engine controller Figure 131. Engine controller Table 38.
PCA locations Figure 132. PCA locations Table 39.
Trays 250-sheet feeder Figure 133.
Table 40.
500-sheet feeder Figure 134.
Table 41.
Alphabetical parts list Table 42.
Table 42. Alphabetical parts list (continued) ENWW Description Part number Quantity Figure Ref.
Table 42. Alphabetical parts list (continued) Description Part number Quantity Figure Ref.
Table 42. Alphabetical parts list (continued) ENWW Description Part number Quantity Figure Ref.
Table 42. Alphabetical parts list (continued) Description Part number Quantity Figure Ref.
Numerical parts list Table 43. Numerical parts list ENWW Part number Description Quantity Figure Ref.
Table 43. Numerical parts list (continued) Part number Description Quantity Figure Ref.
Table 43. Numerical parts list (continued) ENWW Part number Description Quantity Figure Ref.
Table 43. Numerical parts list (continued) Part number Description Quantity Figure Ref.
Table 43. Numerical parts list (continued) ENWW Part number Description Quantity Figure Ref.
278 Parts and diagrams ENWW
Index Symbols ? button locating 52 using 184 Numerics 250-sheet tray. See tray 2 500-sheet tray.
checks Diagnostics menu 71 engine 201 half self-test 227 media 44 paper path 71, 228 power-on 85 self 228 chemicals, paper 43, 222 circuit capacity requirements 20 diagrams 237 classes, HP Technical Training 242 Clean Post Charger message 70 cleaning drum, image formation operations 94 fuser 76 media dust 223 printer, inside 75 printer, outside 76 spilled toner 23 transfer charging roller operations 94 cleaning page 63, 76 clearable warnings setting 65 clearing jams.
D darkness, setting 63 data compression features 101 processing operations 99 Data light locating 52 states 53 Data Received message 187 data transmission settings 67 datecode, firmware 198 declaration of conformity 24 default settings NVRAM initialization 229 restoring 70 defect tables 211 defects, repetitive 213, 226 delay jams 106, 107 delivery delay jams 107 delivery operations 97 delivery sensor (PS2301) diagrams 96, 105 jam detection operations 107 pickup/feed system operations delivery stationary jam
envelopes default size, setting 59 margins 40 specifications 39 storing 40 troubleshooting 221 environment acclimating printer 180 media storage 223 specifications, printer 21, 30 environmental stewardship 25 equivalence table, paper weight 45 e-rings 244 error messages alphabetical list 186 numerical list 190 troubleshooting 184 ESD (electrostatic discharge), precautions for 111 Ethernet, link speeds 69 event log, clearing 72 expandability features 17 Express Exchange 27 eye contact, toner 23 F face-up bi
HP Connect Online 242 HP Customer Care centers Express Exchange 27 reseller sales and service support 28 HP Express Exchange 27 HP Jetdirect print servers See also EIO cards communication operations 100 configuration page 199 I/O menu settings 67 installation guide 225 models including 16 ordering 243 removing 114 settings 69 troubleshooting 225 HP PCL5e emulation 17 HP Printing Supplies Returns and Recycling 25 HP service agreements 28 HP Service Center, Express Exchange 27 HP support assistant CD-ROM 28 H
lenses, operations 87, 90 letter paper, override A4 settings 59 letterhead fuser modes 62 troubleshooting 219 life expectancies parts 74 print cartridges 78 light print density setting 63 troubleshooting 212 lights, control panel 52, 53 line feed settings 60 lines, troubleshooting 212 link speed settings 69 lists, parts alphabetical 268 numerical 273 load tray messages 187 locked control panel menus 54, 186 loose toner, troubleshooting 213 low toner 66, 80 low-voltage power supply operations 86 LSTR (last r
motors diagrams 234 error messages 196 image formation operations 89 low-voltage power supply operations 86 main, removing 151 paper feeding operations 95 power-on sequence 85 MSDS (Material Safety Data Sheet) 23, 26 multifeeds, troubleshooting 218 N navigation buttons, control panel 52, 53 NetWare, Novell 68, 225 networks settings 67 troubleshooting 225 See also HP Jetdirect print servers noise specifications 21 non-HP print cartridges 77 nonvolatile memory (NVRAM) errors 196 initializing 229 operations 1
partners, HP 242 parts CD-ROM information 28 ordering 242 removing and replacing 111, 112 replacement intervals 74 path, paper cleaning 75 duplexer operations 98 feeding operations 95 jam detection 106 sheet feeder operations 103 test 71, 228 troubleshooting 217 Pause/Resume button locating 52 using 53 PCAs, diagrams and part numbers 263 PCL driver settings 60 font lists 56 language features 17 perforated media, troubleshooting 220 periodic replacement, parts 74 phone numbers authorized resellers 28 fraud h
ProRes 17, 63 PS (PostScript) error page settings 60 font lists 56 wait timeout 198 punched paper, fuser modes 62 purchasing.
servers.
tests Diagnostics menu 71 engine 201 half self-test functional check 227 media 44 paper path 71, 228 power-on 85 self 228 text, troubleshooting 212, 214 theory of operations.
trays default media size, setting 59 empty, error messages 189 features 17 feeding operations 95 jam detection operations 106 jams 207 load messages 187 locating 22 media detection 105 media supported 17 models including 16 ordering 243 paper path test 71, 228 registration settings 61 selecting 35, 64 settings 57, 58 size mismatch message 189 type mismatch error message 190 unexpected size or type error message 192 troubleshooting blank pages 216 communications 225 control panel messages 184 curl 62, 214, 2
ENWW Index 291
292 Index ENWW
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