® ® HP LaserJet 5L/6L/6L Gold/6L Pro Printer Service Manual English © Copyright 2000 Hewlett-Packard Co. Printed in USA Manual Part No. C8060-90903 Printed on at least 50% Total Recycled Fiber with at least 10% Post-Consumer Paper *C8060-90903* *C8060-90903* C8060-90903 8.268” (A4 Width) X 11” (Letter Height) Back Cover 8.
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Service.book Page 2 Thursday, September 14, 2000 11:15 AM © Copyright Hewlett-Packard Company, 2002 Warranty Trademark Credits All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. The information contained in this document is subject to change without notice. ENERGY STAR is a U.S. registered service mark of the United States Environmental Protection Agency.
Service.book Page 3 Thursday, September 14, 2000 11:15 AM Conventions This is a combined Service Manual for the HP LaserJet 5L, 6L, 6L Gold, and 6L Pro printers. The HP LaserJet 6L Gold shares the same characteristics as the HP LaserJet 6L. For the purposes of this manual, the “HP LaserJet 6L” refers to both the 6L and the 6L Gold. This manual uses the following conventions: COLOR is used to emphasize items that are important to the material under discussion.
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Service.book Page 5 Thursday, September 14, 2000 11:15 AM Contents 1 Product information Chapter contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP LaserJet 6L Gold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model and serial . . . . . . . . . . . . . . .
Service.book Page 6 Thursday, September 14, 2000 11:15 AM 4 Printer maintenance Chapter contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Life expectancy of consumables . . . . . . . . . . . . . . . . . . . . . . . . . . .48 Toner cartridge life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 Saving toner with EconoMode . . . . . . . . . . . . . . . . . . . . . . . . .49 Refilled toner cartridges . . . . . . . . . . . . . . . . . . . . .
Service.book Page 7 Thursday, September 14, 2000 11:15 AM Pressure Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Face-Up/Face-Down Lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Fuser Exit Roller Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Paper Exit Sensor Flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Top assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 8 Thursday, September 14, 2000 11:15 AM Appendix B Regulatory information Laser Safety (U.S.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177 Laser Statement (Finland) . . . . . . . . . . . . . . . . . . . . . . . . . . . .178 Toner safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179 Ozone emission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179 FCC Statement (Class B). . . . . . . . . . . . . . .
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Service.book Page 10 Thursday, September 14, 2000 11:15 AM Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure 10 6-31 6-32 6-33 6-34 6-35 6-36 6-37 6-38 6-39 6-40 6-41 6-42 6-43 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 8-1 8-2 8-3 8-4 8-5 8-6 8-7 8-8 8-9 8-10 A-1 Kick Plate removal . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 11 Thursday, September 14, 2000 11:15 AM Tables Table 1-1 Table 1-2 Table 1-3 Table 1-4 Table 1-5 Table 1-6 Table 2-1 Table 2-2 Table 3-1 Table 3-2 Table 4-1 Table 4-2 Table 5-1 Table 5-2 Table 7-1 Table 7-2 Table 7-3 Table 7-3 Table 7-3 Table 7-4 Table 7-5 Table 7-6 Table 8-1 Table 8-2 Table 8-3 Table 8-4 Table 8-5 Table 8-6 Table 8-7 Table 8-8 Table 8-9 Table 8-10 Table 8-11 Table A-1 Table A-2 Printer Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Service.book Page 13 Thursday, September 14, 2000 11:15 AM 1 Product information Chapter contents Printer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Paper capacities and sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 14 Thursday, September 14, 2000 11:15 AM Printer features Note All references in this manual to the HP LaserJet 6L printer also apply to the HP LaserJet 6L Gold printer.
Service.book Page 15 Thursday, September 14, 2000 11:15 AM Identification HP LaserJet 6L Gold The HP LaserJet 6L Gold shares the same characteristics as the HP LaserJet 6L. For the purposes this manual, “HP LaserJet 6L” refers to both the 6L and the 6L Gold. Model and serial The model number and serial numbers are listed on Identification Labels located on the bottom of the printer.
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Service.book Page 22 Thursday, September 14, 2000 11:15 AM Service approach Repair of the printer normally begins with the use of the printer’s internal diagnostics in conjunction with the troubleshooting procedures in Chapter 7. Once a faulty part is located, repair is generally accomplished by assembly level replacement of Field Replaceable Units (FRUs). Some mechanical assemblies may be repaired at the subassembly level. PCA component replacement is not supported by Hewlett-Packard.
Service.book Page 23 Thursday, September 14, 2000 11:15 AM Technical assistance HP Customer Care Along with your product, you receive a variety of support services from Hewlett-Packard and our support partners designed to give you the results you need, quickly and professionally. Online Services: for 24hour access to information over your Internet connection, we suggest these services.
Service.book Page 24 Thursday, September 14, 2000 11:15 AM Customer Care options worldwide HP Customer Care and Product Repair Assistance for the U.S. and Canada: Call (208) 323-2551 in the United States or (905) 206-4663 in Canada Monday through Friday 6 am to 10 pm and Saturday 9 am to 4 pm (Mountain Time) free of charge during the warranty period. However, your standard long-distance phone charges still apply. Have your system nearby and your serial number ready when calling.
Service.book Page 25 Thursday, September 14, 2000 11:15 AM HP worldwide sales and service offices Argentina Australia Austria Hewlett-Packard Argentina Montañeses 2140 1428 Buenos Aires Phone: (54) (1) 787-7115 Fax: (54) (1) 787-7287 Hewlett-Packard Head office Hewlett-Packard Australia Ltd.
Service.book Page 26 Thursday, September 14, 2000 11:15 AM India Indonesia Israel Hewlett-Packard India Ltd. Chandiwala Estate Maa Anandmai Marg Kalkaji, New Delhi - 110019 Phone: (91 11) 682-6000, (91 11) 682-6035 Fax: (91 11) 682-6030 Hewlett-Packard Berca Servisindo Sentral Senayan 1, 8th floor Jl. Asia Afrika no. 8 Jakarta 10270 Indonesia Phone: (62 21) 350-3408 Hewlett-Packard Israel Ltd. 11, Hashlosha St.
Service.book Page 27 Thursday, September 14, 2000 11:15 AM Russian Federation Singapore Spain Hewlett-Packard Company Representative Office Kosmodamianskaya naberezhnaya 52, Building 1 113054 Moscow Phone: (7) (0) 95 797-3500 Fax: (7) (0) 95 797-3501 Hewlett-Packard Singapore (Service) Pte Ltd 438A Alexandra Road Blk A Alexandra Technopark #02-08 Singapore 119967 Phone: (65) 275-3888 Fax: (65) 273-1146 Hewlett-Packard Española, S.A. Carretera de la Coruña km 16.
Service.book Page 28 Thursday, September 14, 2000 11:15 AM Warranty 1 HP warrants to you the end-user customer, that HP hardware, accessories and supplies, will be free from defects in materials and workmanship after the date of purchase, for the period specified above. If HP receives notice of such defects during the warranty period, HP will, at its option, either repair or replace products which prove to be defective.
Service.book Page 29 Thursday, September 14, 2000 11:15 AM HP LaserJet Toner Cartridge warranty HP LaserJet Toner Cartridges are warranted to be free from defects in materials and workmanship until the HP toner is depleted. You know your HP toner is depleted when you begin to see faded or light type on your printed page. The warranty, extended for the life of the cartridge, covers any defects or malfunctions in your new Hewlett-Packard Toner Cartridge.
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Service.book Page 31 Thursday, September 14, 2000 11:15 AM 2 Site requirements Chapter contents Site requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Printer space requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 32 Thursday, September 14, 2000 11:15 AM Site requirements Operating environment The environmental requirements listed in the table below must be maintained to ensure the proper operation of this printer. Table 2-1 Environmental requirements LaserJet 5L/6L/6L Pro & Cartridge Operating Storage Temperature 50 to 90.5° F (10 to 32.
Service.book Page 33 Thursday, September 14, 2000 11:15 AM Printer space requirements Legal (paper guide not present on HP LaserJet 6L Pro) 227.5 mm 327.5 mm 445.3 mm A4 Letter 311.2 mm Figure 2-1 Printer space requirements Table 2-2 Printer dimensions Description Dimension Width 335.5 mm (13.2 inches) Depth 311.2 mm (12.3 inches) Height (storage) (operational) 227.5 mm (8.9 inches) 372.7 mm (14.6 inches)1 Weight (with toner cartridge) 7.2 kg (15.9 pounds) Toner Cartridge 1. 2.
Service.book Page 34 Thursday, September 14, 2000 11:15 AM The HP C3906A/F Toner Cartridge Toner Cartridges contain components that are sensitive to light, temperature, and humidity. Follow the recommendations in this section to ensure the highest quality and longest life of HP Toner Cartridges. Keep the printer within the following environmental conditions for optimum performance. Storage conditions The Toner Cartridge is affected by its environment.
Service.book Page 35 Thursday, September 14, 2000 11:15 AM Toner cartridge handling suggestions l Figure 2-2 EN Before installing a cartridge, distribute the toner evenly by rotating the cartridge back and forth five to six times. (See Figure 2-2.) Repeat this action when toner begins to run low. Toner cartridge distribution l Do not touch the surface of the Photosensitive Drum in the cartridge. Protect the drum from light and contamination.
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Service.book Page 37 Thursday, September 14, 2000 11:15 AM 3 Operating overview Chapter contents Using the Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Control Panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Indicator lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 38 Thursday, September 14, 2000 11:15 AM Using the Control Panel Control Panel layout The Control Panel is located on the front of the printer and consists of one button and three indicator lights. ERROR (Amber) DATA (Green) READY (Green) These lights can be in only one of the following states: OFF ON Blinking Indicator lights The Indicator Lights provide a quick way to check the printer’s status.
Service.book Page 39 Thursday, September 14, 2000 11:15 AM Table 3-1 Indicator Lights (Continued) (2 of 2) When this indicator: Looks like this: It means this: Do this: Data Light is blinking Printer is in Manual Feed mode. Make sure that the correct paper is loaded. Then, press and release the Control Panel Button to print. Error Light remains on Printer is out of paper. Add paper. Printer’s EP door is open. Close the door. Printer has a paper jam. Clear the jam and resume printing.
Service.book Page 40 Thursday, September 14, 2000 11:15 AM The Control Panel Button Depending on what state the printer is in, pressing the Control Panel Button allows you to control printing tasks by either starting or resuming a printer function.
Service.book Page 41 Thursday, September 14, 2000 11:15 AM Printing a self-test page A self-test page can be useful in troubleshooting printer problems and determining which fonts have been downloaded to the printer.
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Service.book Page 43 Thursday, September 14, 2000 11:15 AM Figure 3-3 Self-test page for HP LaserJet 6L Pro The self-test page lists the current printer configuration. (If any fonts have been downloaded to the printer a second page will print.) To print a self-test page: EN 1 Make sure the Ready (bottom) Light is on, and all other lights are off. Wake up the printer if necessary by pressing the Control Panel Button. 2 Briefly press and release the Control Panel Button.
Service.book Page 44 Thursday, September 14, 2000 11:15 AM Continuous self test Note The HP LaserJet 6L Pro does not support the continuous self test. A continuous self test can be useful for troubleshooting paper path and other problems. To print a continuous self test: 1 Disconnect the printer from the power source. 2 Press and hold down the Control Panel Button while connecting power. 3 Continue holding the button for about five seconds.
Service.book Page 45 Thursday, September 14, 2000 11:15 AM Resetting the printer Resetting the printer accomplishes the following: l Clears all data from the printer’s memory (including unprinted data, downloaded fonts, and macros). l Stops any printing that is taking place and ejects the page. l Removes some error conditions. l Resets the printer to its factory default settings.
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Service.book Page 47 Thursday, September 14, 2000 11:15 AM 4 Printer maintenance Chapter contents Life expectancy of consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Toner cartridge life. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Saving toner with EconoMode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 48 Thursday, September 14, 2000 11:15 AM Life expectancy of consumables Always inspect the components listed in Table 4-1 for wear when servicing the printer. Replace these components as needed, based on printer failures or wear, not strictly on usage. Table 4-1 Life expectancy of consumables Description Estimated Life Remarks (pages) Toner cartridge (user replaceable) 2,5001 When print becomes faint, shake cartridge to distribute remaining toner.
Service.book Page 49 Thursday, September 14, 2000 11:15 AM Toner cartridge life The toner cartridge has been designed to simplify the replacement of the printer’s major parts. The toner cartridge contains the printing mechanism and a supply of toner. When using a typical wordprocessing application, a toner cartridge will print approximately 2500 pages where the text covers about five percent of the page.
Service.book Page 50 Thursday, September 14, 2000 11:15 AM Refilled toner cartridges While Hewlett-Packard does not prohibit the use of refilled toner cartridges during the warranty period or while under a maintenance contract, we do not recommend their use. The reasons for this are: l Hewlett-Packard has no control or process to ensure that a refilled toner cartridge functions at the high level of reliability of a new HP LaserJet toner cartridge.
Service.book Page 51 Thursday, September 14, 2000 11:15 AM Cleaning the printer To maintain the print quality, thoroughly clean the printer: l Every time you change the toner cartridge. l After printing approximately 2,500 pages. l Whenever print quality problems occur. Clean the outside of the printer with a lightly water-dampened cloth. Clean the inside with only a dry, lint-free cloth. Observe the warnings and cautions below.
Service.book Page 52 Thursday, September 14, 2000 11:15 AM Figure 4-2 Static Eliminator Teeth (located in front of the transfer roller) Cleaning spilled toner Defective toner cartridges can develop leaks. In addition, after a paper jam has occurred, there may be some toner remaining on the rollers and guides inside the printer. The pages that print immediately after the jam may pick up this toner. Clean spilled toner with a cloth slightly dampened in cold water.
Service.book Page 53 Thursday, September 14, 2000 11:15 AM 5 Functional overview Chapter contents Basic printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 DC Controller/power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Print engine control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 54 Thursday, September 14, 2000 11:15 AM Basic printer functions This chapter presents a generalized functional overview of the printer and the printing processes.
Service.book Page 55 Thursday, September 14, 2000 11:15 AM DC Controller/power system The DC Controller PCA coordinates all print engine activities, drives the laser, and coordinates print data from the Formatter PCA with the image formation process. The DC Controller also includes both AC and DC power supply and distribution circuitry.
Service.book Page 56 Thursday, September 14, 2000 11:15 AM Print engine control system Laser and scanner drive Based on information received from the Formatter, the DC Controller sends signals to the Laser/ Scanner Assembly to modulate the laser diode ON and OFF and to drive the Laser/Scanner motor. Refer to “Image formation system” later in this chapter for more information.
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Service.book Page 58 Thursday, September 14, 2000 11:15 AM Formatter system The Formatter PCA is responsible for the following: l Receiving and processing print data from the printer interface. l Monitoring Control Panel Button and relaying printer status information. l Developing and coordinating data placement and timing with the print engine. l Storing font information. l Communicating with the host computer through the Bi-Directional Interface.
Service.book Page 59 Thursday, September 14, 2000 11:15 AM Resolution Enhancement technology (REt) The Formatter PCA contains circuitry for Resolution Enhancement technology (REt), which modifies the standard video dot data on its way to the DC Controller to produce smoothed black-to-white boundaries. REt is user-adjustable from some software applications. Available settings are On or Off.
Service.book Page 60 Thursday, September 14, 2000 11:15 AM Page Protect Page complexity (rules, complex graphics, or dense text) may exceed the printer‘s ability to create the page image fast enough to keep pace with the Image Formation process. If Page Protect is disabled and a page is too complex, the page may print in parts (for example, the top half on one page and the bottom half on the next page). Some print data loss is likely in these instances, and the printer will display an error message.
Service.book Page 61 Thursday, September 14, 2000 11:15 AM Image formation system Laser printing requires the interaction of several different technologies (such as electronics, optics, and electrophotographics) to provide a printed page. Each process functions independently and must be coordinated with the other printer processes.
Service.book Page 62 Thursday, September 14, 2000 11:15 AM Step 1: Drum cleaning The cleaning blade is in contact with the surface of the drum at all times. As the drum rotates during printing, excess toner wiped off and stored in the waste toner receptacle. Step 2: Drum conditioning After the drum is physically cleaned, it must be conditioned. This process consists of applying a uniform negative charge on the surface of the drum with the primary charging roller, located in the toner cartridge.
Service.book Page 63 Thursday, September 14, 2000 11:15 AM Paper feed system Both the Paper Input Tray and the Single Sheet Input Slot merge into one, main input area. Paper placed in either of these areas enables the Paper Out Sensor (sensor 202), which informs the DC Controller that paper is present. When the printer receives a print job and is ready to print, the DC Controller enables the Laser/ Scanner Assembly and the Motor. Paper motion begins when the DC Controller energizes solenoid SL1.
Service.book Page 64 Thursday, September 14, 2000 11:15 AM Figure 5-6 shows the locations of the photosensors, switches, solenoid, and other important printer elements. Table 5-1 describes the function of each photosensor and the solenoid.
Service.book Page 65 Thursday, September 14, 2000 11:15 AM Paper jam detection The Paper Out Sensor (PS202), Paper Registration Sensor (PS203), and the Paper Exit Sensor (PS201) detect when paper is moving through the printer. (See Figure 5-5 for roller and sensor locations.) If a paper jam is detected, the DC Controller immediately stops the printing process and causes a paper jam indication on the Control Panel. A paper jam can be detected under any of the following conditions: EN l Power-On Jams.
Service.book Page 66 Thursday, September 14, 2000 11:15 AM Basic sequence of operation The Formatter PCA and the DC Controller PCA share information during printer operation. The DC Controller-to-Formatter Connector (J201) forms a link that operates as a serial data bus. This allows printer status, command information, and dot-image data to be passed between the two PCAs. Figure 5-7 shows the general timing of the printer events.
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Service.book Page 69 Thursday, September 14, 2000 11:15 AM 6 Removal and replacement Chapter contents Removal and replacement strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Installing memory cards (DRAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 70 Thursday, September 14, 2000 11:15 AM Removal and replacement strategy This chapter documents removal and replacement of Field Replaceable Units (FRUs) only. Replacement is generally the reverse of removal. Occasionally, notes are included to provide direction for difficult or critical replacement procedures. WARNING! Unplug the power cord from the power outlet before attempting to service the printer. If this warning is not followed, severe injury may result.
Service.book Page 71 Thursday, September 14, 2000 11:15 AM Required tools CAUTION l #2 Phillips screwdriver with a magnetic tip l small flathead screwdriver l needlenose pliers A PosiDriv screwdriver will damage the printer’s screw heads. Use Phillips only. Figure 6-1 shows the difference between a Phillips and a PosiDriv screwdriver. Note that a Phillips tip has more beveled surfaces.
Service.book Page 72 Thursday, September 14, 2000 11:15 AM Installing memory cards (DRAM) 1 Note The HP LaserJet 6L Pro does not support memory upgrades. 2 3 1 Unplug the power cord from the printer. You should not install a memory card while the printer is in SleepMode. 2 Open the Printer Door, remove the toner cartridge, and close the Printer Door. Protect the toner cartridge from light while you are working on the printer. 3 Remove any paper in the paper tray.
Service.book Page 73 Thursday, September 14, 2000 11:15 AM Covers and doors Back Cover 1 Unplug the power cord and remove the parallel cable from the back of the printer. 2 Remove the toner cartridge. 3 Lift the Input Extender assembly. CAUTION You must lift the Input Extender when the covers are removed or it will break. After you have removed the covers, leave the Input Extender in this lifted position for ease of replacement.
Service.book Page 74 Thursday, September 14, 2000 11:15 AM 5 Separate the rear panel from the main cover, pulling the lower corners away from the printer first. Then, insert the small flathead screwdriver into the openings at the top to pop the upper corners (Figure 6-3, callout 1). 6 Remove the cover by grabbing it on both sides and pulling it straight back with a firm pull (Figure 6-3, callout 2).
Service.book Page 75 Thursday, September 14, 2000 11:15 AM EP Door Assembly Figure 6-4 EN 1 Unplug the power cord and remove the parallel cable from the back of the printer. 2 Open the EP Door. 3 Remove the toner cartridge. 4 There is a flex point along the door hinge. Firmly press the left tab inward to release it (Figure 64). The right tab will fall out easily.
Service.book Page 76 Thursday, September 14, 2000 11:15 AM Memory Door Note This procedure does not apply to the HP LaserJet 6L Pro. That model does not have a Memory Door. 1 Unplug the power cord and remove the parallel cable from the back of the printer. 2 Remove the toner cartridge. 3 Gently tip the printer onto its side so that the Control Panel is on top. 4 Carefully pull the door tab out (Figure 6-5, callout 1) and away from the printer in a gentle rocking motion (Figure 6-5, callout 2).
Service.book Page 77 Thursday, September 14, 2000 11:15 AM Main Cover and Paper Input Assembly CAUTION 1 Remove the toner cartridge. 2 Remove memory door (HP LaserJet 5L and 6L). Remove the memory door first (HP LaserJet 5L and 6L). The door will break if you remove the Main Cover without removing the memory door. 3 Remove the EP Door Assembly. 4 Remove the Back Cover. 5 Remove the (2) screws from the top of the printer (Figure 6-6, callout 1).
Service.book Page 78 Thursday, September 14, 2000 11:15 AM Internal assemblies Control Panel Procedure for HP LaserJet 5L and 6L 1 Remove the Printer Covers. 2 Use the needlenose pliers to release the Control Panel connector (Figure 6-7,callout 1). 3 Press the tab on the top of the Control Panel downward (Figure 6-7, callout 2). The Control Panel will pop out of the printer chassis. 4 Lift the Control Panel out. Procedure for HP LaserJet 6L Pro Note Note 1 Remove the Printer Covers.
Service.book Page 79 Thursday, September 14, 2000 11:15 AM Exit Roller Assembly 1 Remove Printer Covers. 2 Grasp both tabs at the lower ends of the Exit Roller bushings and pull inward. This will release the tabs from the printer chassis (Figure 6-8, callout 1). 3 Rotate the tabs 90 degrees, clear of the printer chassis (Figure 6-8, callout 2). 4 Lift the roller out. 2 1 Figure 6-8 Exit Roller removal To reinstall The end of the Exit Roller that has a gear attached must fit into the gear train.
Service.book Page 80 Thursday, September 14, 2000 11:15 AM Delivery Assembly Note 1 Remove the Printer Covers and Exit Roller Assembly. 2 Remove the EP Right-hand assembly by pressing inward on the tab (Figure 6-9, callout 1) and sliding the assembly toward the front of the printer (Figure 6-9, callout 2). The EP Right-Hand assembly must be removed to access any fuser components.
Service.book Page 81 Thursday, September 14, 2000 11:15 AM 3 Use the magnetic screwdriver to remove the (2) screws (Figure 6-10, callout 1). 4 Rotate the rear of the Delivery Assembly up and forward, then lift it out of the printer. 1 Figure 6-10 Delivery Assembly removal (2 of 2) Note When reinstalling the Delivery Assembly, make sure that the tabs on the front end of the Delivery Assembly fit under the sheet metal fuser plate below.
Service.book Page 82 Thursday, September 14, 2000 11:15 AM Fuser Pressure Plate 1 Remove Printer Covers and Delivery Assembly (Figures 6-9 and 6-10). 2 Remove the (2) screws (Figure 6-11, callout 1). 3 Press the Fuser Plate retainer clips out to release the Pressure Plate (Figure 6-11, callout 2). 4 Rotate the plate around and toward the back. Lift up to remove it (Figure 6-11, callout 3).
Service.book Page 83 Thursday, September 14, 2000 11:15 AM To reinstall The Fuser Pressure Plate is kept in place by four locking mechanisms in each corner. Place the rear slits in the plate over the rear brackets that hold the Fusing Assembly (Figure 6-12, callout 1). Lower the plate over the retaining clips, pressing on both sides of the Fuser Pressure Plate (Figure 6-12, callout, 2).
Service.book Page 84 Thursday, September 14, 2000 11:15 AM Heating Element 1 Remove Printer Covers, Delivery Assembly (Figures 6-9 and 6-10), and Fuser Pressure Plate (Figure 6-11). 2 Remove the wire cover (on the right side of the printer) for the Heating Element wires by pressing in on the tab and pulling outward (Figure 6-13, callout 1).
Service.book Page 85 Thursday, September 14, 2000 11:15 AM 3 Disconnect the AC voltage to the Heating Element by releasing the connector located on the DC Controller. Press down on the connector release with a small, flathead screwdriver (Figure 6-14, callout 1). (Because this is a small space, it is much easier to reach the connector with a screwdriver.) Pull straight out (Figure 6-14, callout 2).
Service.book Page 86 Thursday, September 14, 2000 11:15 AM Figure 6-15 4 Remove the wire from the wire guides along the right-side of the printer. 5 Disconnect the thermistor feedback connector in the left front side of the Fusing Assembly (Figure 6-15). Heating Element removal (3 of 3) 6 Lift the Heating Element out. To reinstall Make sure the connectors are properly reattached.
Service.book Page 87 Thursday, September 14, 2000 11:15 AM Pressure Roller 1 Remove Printer Covers, Delivery Assembly (Figures 6-9 and 6-10), Fuser Pressure Plate (Figure 6-11), and Heating Element (Figures 6-13 through 6-15). 2 Remove the Pressure Roller guide by lifting the edge (Figure 6-16, callout 1) and then rolling it gently backward (Figure 6-16, callout 2). 2 Figure 6-16 Pressure Roller Guide removal 3 Note EN Lift the right end of the Pressure Roller up and out of the printer chassis.
Service.book Page 88 Thursday, September 14, 2000 11:15 AM Face-Up/Face-Down Lever 1 Remove Printer Covers, Delivery Assembly (Figures 6-9 and 6-10), Fuser Pressure Plate (Figure 6-11), and Heating Element (Figures 6-13 through 6-15), and Pressure Roller (Figure 6-16). 2 Rotate the lever forward 90 degrees (past the spring) and pull it straight out the front of the printer. To reinstall 1 Make sure the lever arm is on the left and is initially pointing downward.
Service.book Page 89 Thursday, September 14, 2000 11:15 AM Fuser Exit Roller Assembly Note 1 Remove Printer Covers, Delivery Assembly (Figures 6-9 and 6-10), Fuser Pressure Plate (Figure 6-11), and Heating Element (Figures 6-13 through 6-15), Pressure Roller (Figure 6-16), and Face-Up/Face-Down Lever (Figure 6-17). 2 Remove the gear from the left end of the roller shaft by pressing down on the catching mechanism with the small flathead screwdriver and pulling the gear away.
Service.book Page 90 Thursday, September 14, 2000 11:15 AM Paper Exit Sensor Flag 1 CAUTION Remove the Printer Covers, Delivery Assembly (Figures 6-9 and 6-10), and Fuser Pressure Plate (Figure 6-11). Before proceeding to Step 2, examine the Paper Exit Sensor flag. It is important to note the position of the spring mechanism on the flag. The spring must be reinstalled to exactly this position. 2 Remove the Paper Exit Sensor flag by pressing down on the left side and pulling up on the right side.
Service.book Page 91 Thursday, September 14, 2000 11:15 AM Top assemblies Laser/Scanner Assembly Note 1 Remove the Printer Covers. 2 Remove both Laser/Scanner connectors (Figure 6-20, callout 1). The Laser/Scanner connect cable on the HP LaserJet 6L Pro is twisted (not shown in Figure 6-20). 3 Note Remove all (4) screws and lift the assembly straight off (Figure 6-20, callout 2). One of the four screws is longer than the other three.
Service.book Page 92 Thursday, September 14, 2000 11:15 AM Solenoid 1 Remove the Printer Covers. 2 On the left side of the printer, remove the paper pickup gear (Figure 6-21, callout 1) by pressing the tabs in the center of the gear outward and pulling the gear off (Figure 6-21).
Service.book Page 93 Thursday, September 14, 2000 11:15 AM 3 Remove the Solenoid connector (J204) from the DC Controller (Figure 6-22, callout 1). 4 Remove the self-tapping screw that holds the Solenoid in place (Figure 6-22, callout 2). 5 Unthread the wires from the printer chassis. 6 Lift the Solenoid off. 2 1 Figure 6-22 Solenoid removal (2 of 2) Note When reinstalling this part, the Paper Pickup Gear is keyed to go on the shaft in only one way.
Service.book Page 94 Thursday, September 14, 2000 11:15 AM Pickup Roller Assembly Note 1 Remove the Printer Covers. 2 Remove the paper pickup gear (Figure 6-21). This gear is keyed to go on the shaft in only one way. 3 Remove the pickup roller grounding clip on the right of the printer by lifting each end of the clip up and over the two metal guides and sliding the clip off. Figure 6-23 depicts the clip from an HP LaserJet 5L.
Service.book Page 95 Thursday, September 14, 2000 11:15 AM 4 Using needlenose pliers, pull the bottom of the bushing out (Figure 6-24, callout 1), then turn it counter clockwise to release it (Figure 6-24, callout 2). 2 1 Figure 6-24 EN Pickup Roller Assembly removal (2 of 2) 5 Lift the bushing out. 6 From inside the front of the printer, slide the right side of the Pickup Roller Assembly forward, then lift the left side out.
Service.book Page 96 Thursday, September 14, 2000 11:15 AM To reinstall After placing the Pickup Roller shaft through on the left side, line up the Idler Roller tabs while repositioning the right side. Rock the shaft back and forth until the Pickup Roller and the Idler Roller tabs are correctly reinstalled.
Service.book Page 97 Thursday, September 14, 2000 11:15 AM Paper Feed Frame 1 Remove the Printer Covers. 2 Remove the Pickup Roller Assembly (Figures 6-23 through 6-24).
Service.book Page 98 Thursday, September 14, 2000 11:15 AM 4 Figure 6-27 Release the catch on the control panel cable guide by using the small flathead screwdriver to push on the tab (Figure 6-27). Then slide the guide off.
Service.book Page 99 Thursday, September 14, 2000 11:15 AM 5 Remove the self-tapping screw from the back sheet metal plate and lift it off (Figure 6-28, callout 1). 6 Remove the (4) hex head screws from the Paper Feed Frame (Figure 6-28, callout 2).
Service.book Page 100 Thursday, September 14, 2000 11:15 AM 7 Release the sensor unit connector (Figure 6-29). Note This connector is not present on the HP LaserJet 6L Pro. For that model, remove the single connector from the DC Controller. Figure 6-29 Paper Feed Frame removal (4 of 4) 8 Verify that all cables are clear of the frame and pull the frame straight back to remove it.
Service.book Page 101 Thursday, September 14, 2000 11:15 AM Transfer Roller Guide and Transfer Roller Figure 6-30 1 Remove the Printer Covers, Pickup Roller Assembly (Figures 6-23 through 6-25), and Paper Feed Frame (Figures 6-26 through 6-29). 2 Looking at the back of the printer, note the two small, hook-shaped release tabs on each end of the Transfer Roller guide. Using a small, flathead screwdriver, carefully pry each tab outward to release it (Figure 6-30).
Service.book Page 102 Thursday, September 14, 2000 11:15 AM Kick Plate CAUTION Figure 6-31 Be careful working with the Kick Plate and Separation Pad. The spring underneath the Kick Plate may stay attached to the Kick Plate, but it is also likely to spring away from the Kick Plate. Place the spring aside for Separation Plate disassembly. 1 Remove the Printer Covers and the Pickup Roller Assembly (Figures 6-23 and 6-24). 2 Press the Separation Pad (Figure 6-31).
Service.book Page 103 Thursday, September 14, 2000 11:15 AM To reinstall If the spring on the Kick Plate does not stay on the Kick Plate, replace the spring, making certain the diameter of the spring surrounds two lower pins on the Kick Plate and rests inside the third pin. Use needlenose pliers to place the spring correctly. (See Figure 6-32.
Service.book Page 104 Thursday, September 14, 2000 11:15 AM Separation Pad Figure 6-33 1 Remove the Printer Covers, Pickup Roller Assembly (Figures 6-23 and 6-24), and Kick Plate (Figure 6-31). 2 Lift the bottom of the white plastic tab on the rear of the Paper Feed Frame up slightly and slide it up, toward the top of the Paper Feed Frame. This will release the Separation Pad (Figure 6-33). 3 Lift the Separation Pad 90 degrees and slide its mounting pins out of their retainers.
Service.book Page 105 Thursday, September 14, 2000 11:15 AM Subpads Note Figure 6-34 EN When you replace the Separation Pad, you should also replace the smaller subpads at the same time. 1 Place your index finger on the subpad. 2 Press toward the top of the printer.
Service.book Page 106 Thursday, September 14, 2000 11:15 AM Feed Assembly The Feed Assembly is located in the Paper Feed Frame. 1 Remove the Printer Covers, Pickup Roller Assembly (Figures 6-23 through 6-25), and Paper Feed Frame (Figures 6-26 through 6-29). 2 Turn the Paper Feed Frame upside down. 3 Remove the Feed Roller Shaft by lifting the plastic tab up (Figure 6-35, callout 1) and sliding it out the side of the Paper Feed Frame (Figure 6-35, callout 2).
Service.book Page 107 Thursday, September 14, 2000 11:15 AM 4 Remove the self-tapping screw that holds the Feed Assembly in place (Figure 6-36, callout 1). Note Before proceeding to Step 5, examine the tabs and how they fit into their slots (Figure 6-36, callout 2). The tabs must be reinstalled to exactly this position. Note The connector shown (Figure 6-36, callout 3) is not present on the HP LaserJet 6L Pro. On that model, the wiring harness is connected to the DC Controller.
Service.book Page 108 Thursday, September 14, 2000 11:15 AM 6 Figure 6-37 Turn the Feed Assembly over and place it in one hand with the roller-side down. Pop one of the tabs on the other side and the feed roller should fall into your hand (Figure 6-37). Feed Assembly removal (3 of 3) To reinstall Before securing the screw, ensure the tabs on the Feed Assembly are positioned in their slots on the Paper Feed Frame (Figure 6-35, callout 2). Failure to do so will cause paper feed problems.
Service.book Page 109 Thursday, September 14, 2000 11:15 AM Bottom assemblies Memory Door Guide Note Figure 6-38 EN The HP LaserJet 6L Pro does not have a memory door. 1 Remove the Printer Covers. 2 Remove any extra memory. 3 Two tabs hold the memory door guide on the printer chassis. Press each tab inward (Figure 638). 4 Pull the memory door guide out.
Service.book Page 110 Thursday, September 14, 2000 11:15 AM Motor 1 Remove the Printer Covers. 2 Remove the motor connector (Figure 6-39, callout 1). 3 Remove the memory door guide (HP LaserJet 5L and 6L) to expose the two motor screws. 4 Remove the motor screws (Figure 6-39, callout 2). 5 Lift the Motor out.
Service.book Page 111 Thursday, September 14, 2000 11:15 AM DC Controller Note 1 Remove the Printer Covers. 2 Disconnect the motor connector from the motor (Figure 6-39, callout 1). 3 Disconnect the Solenoid connector from the DC Controller (Figure 6-22, callout 1). 4 Remove the back sheet metal plate and disconnect the PS202/PS204 connector (Figure 6-29). 5 Remove the AC Cable cover and disconnect the AC Cable from the DC Controller (Figures 6-13 and 6-14).
Service.book Page 112 Thursday, September 14, 2000 11:15 AM 8 CAUTION Lift the bottom plate, rotating the plate toward you from the back as if hinged on the front. Release the Fusing Assembly connector (J206) (Figure 6-41, callout 1). ESD SENSITIVE! 1 Figure 6-41 DC Controller removal (2 of 3) 9 CAUTION Remove the (7) remaining connectors (Figure 6-42, callout 1). Some wiring connections on the HP LaserJet 6L Pro are soldered.
Service.book Page 113 Thursday, September 14, 2000 11:15 AM 2 1 2 Figure 6-42 DC Controller removal (3 of 3) 11 Remove the DC Controller by lifting gently on the side opposite the formatter, then sliding it out. CAUTION Be careful not to rotate the DC Controller as you remove it. Note When ordering, the DC Controller does not come with any connectors. Use the current connectors or refer to the connector chart in Chapter 8 for ordering information.
Service.book Page 114 Thursday, September 14, 2000 11:15 AM Formatter PCA CAUTION CAUTION ESD SENSITIVE! 1 Remove the Printer Covers and complete the DC Controller removal direction up to step 8 (Figures 6-40 and 6-41). 2 Remove the two cable clips (Figure 6-43, callout 1). 3 Remove all (4) screws from the formatter cover (Figure 6-43, callout 2). Lift the I/O shield to remove it. 4 If servicing an HP LaserJet 5L or 6L, remove the Control Panel display cable (Figure 6-43, callout 3).
Service.book Page 115 Thursday, September 14, 2000 11:15 AM 7 Troubleshooting Chapter contents General troubleshooting flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Paper path and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 DC Controller diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 116 Thursday, September 14, 2000 11:15 AM General troubleshooting flowchart When the AC power is first applied to the printer: l Both the printer motor and the laser/scanner motor rotate for six seconds. l All of the LEDs illuminate for one second; the “Ready” LED will illuminate after three seconds.
Service.book Page 117 Thursday, September 14, 2000 11:15 AM General Troubleshooting Flowchart (continued) Perform an Engine Test Is the Engine Test image being printed clearly? No Refer to the section “Image Formation Troubleshooting,” later in this chapter.
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Service.book Page 120 Thursday, September 14, 2000 11:15 AM Printer error troubleshooting Information regarding printer status is conveyed by two methods: 1) the printer’s Control Panel lights and 2) feedback through the bi-directional I/O that displays at the PC. The basic method of determining error messages uses patterns of lights on the Control Panel LED.
Service.book Page 121 Thursday, September 14, 2000 11:15 AM Printer status messages The following table lists printer LED messages and their meanings and describes recommended actions. For more information on the Front Panel layout, refer to “Using the Control Panel” in Chapter 3, “Installation and Configuration.” Table 7-1 LEDs Printer status messages (Sheet 1 of 2) Description Recommended action Paper Out Error. Add paper. Door Open or No EP Cartridge.
Service.book Page 122 Thursday, September 14, 2000 11:15 AM Table 7-1 Printer status messages (Continued) (Sheet 2 of 2) LEDs Description Recommended action Sleep Mode. If the printer’s LEDs remain off: 1. The printer is in Sleep Mode. Press the Control Panel Button or open the EP Door. 2. Power is not supplied to the printer. Check power cord connections and the power source. 3. Print an engine test to determine if the print engine is functional. If the test is successful, replace the Formatter PCA.
Service.book Page 123 Thursday, September 14, 2000 11:15 AM Service and error messages Service errors prevent further printer operation until some action is taken. When there is a service error, all of the lights will turn on in a steady state. Press and hold the Control Panel Button to see a pattern in the lights. (The error will only be displayed as long as this button is pressed.) Use Table 7-4, “Service and Error Messages,” to identify what type of service error has occurred.
Service.book Page 124 Thursday, September 14, 2000 11:15 AM Figure 7-3 Heating element resistance check Table 7-3 Service and error messages (Continued 2 of 3) Beam Error. There are a number of 1. Power-cycle the printer by causes for this error, and some of unplugging the printer and plugging the causes may be transient. (They it back in. may disappear.) 2. Make certain the Laser/Scanner Assembly is correctly seated on the printer chassis. 3. Replace the Laser/Scanner cable (J208 on the DC Controller).
Service.book Page 125 Thursday, September 14, 2000 11:15 AM Table 7-3 Service and error messages (Continued 3of 3) Scanner Error. Caused by a scanner malfunction. 1. Power-cycle the printer by unplugging the printer and plugging it back in. 2. Ensure condensation caused by moving the printer from a cold to a warm environment hasn’t occurred. Allow the printer to acclimate to the warmer room. 3. Verify the two Laser/Scanner Assembly connectors are firmly seated. 4.
Service.book Page 126 Thursday, September 14, 2000 11:15 AM Image formation troubleshooting Check the toner cartridge Image formation defects are many times the result of toner cartridge problems. If there is any doubt, always replace the toner cartridge before troubleshooting image defects. Use the following check list to ensure that the toner cartridge is still operable. Note l Ensure that the toner cartridge is seated properly in the cavity. l Inspect the toner cartridge for remaining toner.
Service.book Page 127 Thursday, September 14, 2000 11:15 AM Image defect examples This section illustrates some image defects and their possible causes. Since there are many variables in the printing process, you may encounter image defects that are not illustrated in the following examples. If you find a defect that is not illustrated, record the probable cause along with the printing environmental conditions and save a copy of the defect for future reference.
Service.book Page 128 Thursday, September 14, 2000 11:15 AM Horizontal stripes Sometimes horizontally aligned black streaks or smears can appear. l The toner cartridge may not be installed properly. Remove the cartridge and reinsert it. l The toner cartridge may be defective. Replace it. l If the printer still has print quality problems, the printer may require cleaning. l Replace the heating element. Repetitive defects Sometimes light character shadows or repetitive marks appear on the page.
Service.book Page 129 Thursday, September 14, 2000 11:15 AM Background scatter Background scatter results from bits of toner distributed on the front or back of a printed page. Background scatter often is isolated to a specific area of the page. l Check the environment. High humidity can cause this error. l Change the paper type, weight, or surface finish. See appendix B of the User’s Manual for paper specifications.
Service.book Page 130 Thursday, September 14, 2000 11:15 AM Curled or wrinkled sheets Media is curled or wrinkled when using the Paper Output Bin. l Verify that the media you are using meets paper specifications. (See the HP LaserJet 5L User’s Manual or the HP LaserJet Printer Family Paper Specifications Guide. l Turn the paper over. l Use the Front Output Slot by pushing the Paper Path Lever to the lower position. This provides the straightest paper path.
Service.book Page 131 Thursday, September 14, 2000 11:15 AM Dark background l Adjust the toner density setting through your software or printer driver. l There may be discontinuities in the high-voltage contact points. Clean the high voltage contact points on the toner cartridge and transfer roller. l Replace the Laser/Scanner unit. l Replace the DC Controller. Dots l Clean the static charge eliminator. (See Chapter 4, “Printer Maintenance.
Service.book Page 132 Thursday, September 14, 2000 11:15 AM White horizontal line l Replace the toner cartridge. Faulty registration/skewed image l Unload the paper and re-stack it in the input tray l Readjust the guides to the width of the paper. l Too many sheets of paper may have been loaded into the paper input slot. Load no more than 100 sheets of paper. l The paper may not meet HP’s paper specifications. Select different paper. l Clean the Paper Pickup Roller.
Service.book Page 133 Thursday, September 14, 2000 11:15 AM Troubleshooting checks Engine test The engine test print is used to verify that the print engine is functioning correctly. The Formatter PCA is completely bypassed during an engine test, so this test is useful for isolating printer problems. The engine test prints a full page of vertical lines down the entire printable area and is also useful for checking and adjusting registration.
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Service.book Page 135 Thursday, September 14, 2000 11:15 AM High-voltage power supply check The High-Voltage Power Supply PCA provides the necessary voltages for the electrophotographic processes. A method for verifying the high-voltage system is given in the table below. Table 7-4 High-voltage power supply check Check Action Toner Cartridge Connection Points Visually inspect the three connection points on the underside, right end of the toner cartridge.
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Service.book Page 137 Thursday, September 14, 2000 11:15 AM Paper curl Paper curl is inherent to the laser printing processes, and occurs when paper is subjected to heat. Paper curl tends to relax as the paper cools while resting on a flat surface. The specification for maximum paper curl when the paper is lying flat before print is 5 mm (0.2 inches). Although paper curl cannot be totally eliminated, some steps can be taken to lessen its impact, as suggested in the following table.
Service.book Page 138 Thursday, September 14, 2000 11:15 AM Troubleshooting tools Paper path check If paper is not being picked up or is not moving through the paper path, you may want to observe all of the paper motion activities.
Service.book Page 139 Thursday, September 14, 2000 11:15 AM Repetitive image defect ruler First occurrence of print defect Developing Cylinder 32 mm (1.25 inches) Primary Charging Roller 38 mm (1.5 inches) Delivery Roller 44 mm (1.75 inches) Transfer Roller 48 mm (1.9 inches) Pressure Roller 64 mm (2.5 inches) Upper Heating Element Film 76 mm (3.0 inches) Toner Cartridge Photosensitive Drum 76 mm (3.
1 Figure 7-9 140 Troubleshooting PS202 (Paper Out) SL1 J204 J202 J102 PS203 (Registration) Motor J401 J209 J206 Frame Ground Parallel Port Formatter PCA SW201 (Engine Test) PS201 (Paper Exit) J302 J301 (TR) (DEV) Laser Unit J208 J304 (PR) PS204 (Door Closed/ EP Cartridge Installed) (5L only) SW101 Scanner J207 J305 FU102 (110V only) FU101 High Voltage Connector EP Cartridge Optional Memory Port1 Control Panel SW LEDs Fusing Assembly Service.
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Service.book Page 143 Thursday, September 14, 2000 11:15 AM 8 Parts and diagrams Chapter contents How to use the part lists and diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Ordering parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Ordering consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service.book Page 144 Thursday, September 14, 2000 11:15 AM How to use the part lists and diagrams The Figures in this chapter illustrate the major subassemblies in the printer and their component parts. A table (material list) follows each exploded assembly diagram. Each table lists the reference designator (item number) for each part, the associated part number for the item, the quantity, and a description of the part.
Service.book Page 145 Thursday, September 14, 2000 11:15 AM Accessories and supplies Note Refer to “Related Documentation” in Chapter 1 for documentation and training media product numbers. Table 8-1 Note EN Accessories and supplies Item Product number Description Toner cartridge C3906A Replacement toner cartridge. Memory upgrades 1 MByte - C3939A 2 MByte - C3938A 4 MByte - C3148A You can upgrade to a total of 9 MB of memory in the HP LaserJet 5L/6L.
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Service.book Page 152 Thursday, September 14, 2000 11:15 AM 9 See Figure 8-10 2 11 A 5 3 6 B 1 Note: For the HP LaserJet 6L Pro, this part was replaced with a Guide Sheet.
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Service.book Page 156 Thursday, September 14, 2000 11:15 AM 7 5 15 6 1 3 6 Not shown: connector 2A shield plate (6L Pro only). 2 Note: This cable (8) was modified for the HP LaserJet 6L Pro. See Figure 8-8. 9 10 8 J202 J209 J005 J206 J002 J008 J401 J802 J801 J105 J305 J207 J208 J001 14 Figure 8-6 13 11 4 12 Note: Some of the cables and connectors shown here are not present on the HP LaserJet 6L Pro.
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Service.book Page 158 Thursday, September 14, 2000 11:15 AM 18 14 2 17 16 1 5 7 13 501 19 SL001 Not shown: grounding spring (6L Pro only).
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Service.book Page 167 Thursday, September 14, 2000 11:15 AM A Parts index Alphabetical parts list Table A-1 Alphabetical parts list EN Description Part No. Fig. Ref.
Service.book Page 168 Thursday, September 14, 2000 11:15 AM Table A-1 Alphabetical parts list (Continued) 168 Parts index Description Part No. Fig. Ref.
Service.book Page 169 Thursday, September 14, 2000 11:15 AM Table A-1 Alphabetical parts list (Continued) EN Description Part No. Fig. Ref.
Service.book Page 170 Thursday, September 14, 2000 11:15 AM Table A-1 Alphabetical parts list (Continued) 170 Parts index Description Part No. Fig. Ref.
Service.book Page 171 Thursday, September 14, 2000 11:15 AM Table A-1 Alphabetical parts list (Continued) EN Description Part No. Fig. Ref.
Service.book Page 172 Thursday, September 14, 2000 11:15 AM Numerical parts list Table A-2 Numerical parts list 172 Parts index Part No. Description Fig. Ref.
Service.book Page 173 Thursday, September 14, 2000 11:15 AM Table A-2 Numerical parts list (Continued) EN Part No. Description Fig. Ref.
Service.book Page 174 Thursday, September 14, 2000 11:15 AM Table A-2 Numerical parts list (Continued) 174 Parts index Part No. Description Fig. Ref.
Service.book Page 175 Thursday, September 14, 2000 11:15 AM Table A-2 Numerical parts list (Continued) EN Part No. Description Fig. Ref.
Service.book Page 176 Thursday, September 14, 2000 11:15 AM Table A-2 Numerical parts list (Continued) 176 Parts index Part No. Description Fig. Ref.
Service.book Page 177 Thursday, September 14, 2000 11:15 AM B Regulatory information Laser Safety (U.S.) The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products marketed in the United States. This printer is certified as a “Class 1” laser product under the U.S.
Service.book Page 178 Thursday, September 14, 2000 11:15 AM Laser Statement (Finland) The following applies to printer operation and servicing in Finland. Laserturvallisuus Luckan 1 Laserlaite Klass 1 Laser Apparat HP LaserJet(s) 5L/6L/6L Gold/6L Pro laserkirjoitin on käyttäjän kannalta turvallinen luokan 1 laserlaite. Normaalissa käytössä kirjoittimen suojakotelointi estää lasersäteen pääsyn laitteen ulkopuolelle. Kirjoittimen on hyväksynyt Suomessa laserturvallisuuden osalta Sähk"tarkastuskeskus.
Service.book Page 179 Thursday, September 14, 2000 11:15 AM Toner safety Note In case of toner spills, skin and clothing are best cleaned by removing as much toner as possible with a dry tissue, then washing with cold water. Hot water causes toner to permanently set into clothing. Material data safety sheet The Material Safety Data Sheet (MSDS) can be obtained by contacting the fax-on-demand service in the HP LaserJet Supplies website at the following address: http://www.hp.
Service.book Page 180 Thursday, September 14, 2000 11:15 AM FCC Statement (Class B) Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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Service.book Page 182 Thursday, September 14, 2000 11:15 AM consumables life expectancies 48 ordering 144 contacts, DC Controller 119 continue from memory errors 40 continuous self-test 44 control panel assembly, locating 147 button 40 errors 120 removing 78 service errors, displaying 123 troubleshooting 116 wiring harness 78 control panel lights.
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Service.book Page 186 Thursday, September 14, 2000 11:15 AM Paper Output Bin capacity 14 feeding operations 63 locating 19 Paper Output Supports 19 paper path components 118 curl, reducing 137 diagram 63 feeding system 63 testing 138 paper path lever locating 19 removing 88 paper pickup assembly. See pickup assembly paper pickup gear, removing 92 paper pickup roller assembly. See pickup roller assembly paper pickup roller.
Service.book Page 187 Thursday, September 14, 2000 11:15 AM Q quality, troubleshooting 126, 127 Quick Reference Service Guide, HP LaserJet Family 22 R RAM.
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® © Copyright 2002 Hewlett-Packard Co. Manual Part No.
