# This product is a precision Instrument incorporating many complex functions. Sharp's strict per-shipment inspections ensure that each unit leaves the factory in' perfect condition. Please note that any trouble caused by abuse or misuse of this product is not covered by the warranty, Reproduction or use, without written permission from Sharp Cor portion, of any portion of this document is prohibited. « The contents of this document arg subject to change without notice for future improvement.
Contents Introduction Safety Guide Ling CHAPTER 1 PART NAME AND FUNCTIONS 1-1 Part Names 1-2 Part Functions Operation ., CHAPTER 2 UNPACKING AND INSTALLATION 2-1 Unpacking 2-2 successor: 2-3 Supplies CHAPTER 3 OPERATING INSTRUCTIONS 3=1 Preparations ..o 3~2 Installing the Maintenance Cartridge 3-3 Loading Paper . 3—4 Powering On 3-5 Self Testing . 3-8 Refilling the Inl CHAPTER 4 INTERFACING 4 IMAGINATIVE 1rveneeicrereeseeesnoooers ot bbb s RS 8RR b .
Introduction Thank you for purchasing Sharp's J-720 Ink Jet Color Image Printer. The J-720 offers a variety of features Requited-for Color Rand Ca pies. For proper use, be sure to carefully read the instructions in this manual. Please keep this manual for future reference. The J-720 is a non-impact color image printer using an on-demand, ink jet system and has excellent printing features.
Safety guide line 1) Keep the printer away from heat or out of direct sunlight. Dorset sunlight 2} Do not expose the printer to strong physical shock. Do not operate or store the printer in & place where it will be subjected to vibration. @ Do not operate or store the printer in areas of variable climate or of extremes temperature or humidity.
1-2 Part Functions and Operation 1. Front Operation Panel (I INK JET COLOR IMAGE PRINTER {1} FEED switch The printer continuously feeds paper while this switch is pressed down. This switch is effective in any printer mode either than “recovery” or “printing” as long as the printer is muted on. {2} SELECT switch The switch toggles between the Selected and Non-Selected modes. It is also used to reset an err condition {out of ink or paper, etc.).
2. Rear Operation Panel TEST switch —— RECOVERY switch: Interface connector DIF switch ADJUST switch (1} Interface connector “This connector has a pin configuration conforming to the Electronics printer interface and is designed to connect to a computer (see “Interfacing” on page 26}, {2) TEST switch (push lock type) This switch is used to print test pattern so that the printing can be checked. For more information, see the Self Testing” on page 22.
No. 4: Selects bi-directional or uni-directional printing. ON: Selects the bi-directional print mode {set to ON at the faction. OFF: Selects the uni-directional print mode. Bi-directional print medal: Increases the printing speed. Uni-directional print mods: Makes the vertical line alignment more precise. The printing speed is approximately half that of the bi-directional mode.
2-1 Unpacking {1} Take out the printer from its packing carton, then remove all shipping tape. Remove the carriage lock and drain-cover from the right side of the print head. Retain them for when you transport the printer in the future.
2-2 Accessories The packing carton in which the J-720 printer has bean delivered should contain, along with the printer itself, the following accessories: 1} Printer 5) Maintenance cartridge 3} Roll paper flange \® N 4) Roll paper {coated paper 10 inches wide and 25 meters long}
2-3 Supplies The supplies required for the J-720 Printer are listed halo. If you. need. any of than dealer or your nearest Sharp representative, 1. Print paper 1) Roll paper (coated 10” wide and 50 m long}: IN-O019E 2) Cut sheets {coated, legal size, 500 sheets): 2. Ink cartridge 1} 4 ink cartridges, one for each color: 2} 2 black ink cartridges { 7 cc each ) 3} 2 cyan ink cartridges { & coach J: 4) 2 magenta ink cartridges { §cc sate ); 5} 2 yellow ink cartridges { 5 co each ) 3.
3-1 Preparations After installing the printer, proceed with the following preparations: {1} Open the ink tank cap and remove the rubber stop. Clean the rubber stop with water and keep in the packet of the printer cabinet for future shipment. Ink tank cap Rubber stop {2) The key slider latch will automatically move to the “PRINT™ mark when the ink tank cap s closed after the rubber stop is removed. If not, check to make sure that the rubber stop is removed and the ink tank cap is properly closed.
3-2 Installing the Maintenance Cartridge (1} Open the maintenance cartridge lid and remove the dummy shipping cartridge box. Then insert the supplied maintenance cartridge. Be sure to insert the cartridge all the way. {2) When the maintenance liquid in the cartridge runs low, the READY Indicator will flash. Replace the cartridge with & new one. Press the SELECT switch to tum the READY indicator ON. {3) The old cartridge still contains some residual liquid. Seal it with the seal attached to the cartridge.
3-3 Loading Paper 1. Loading a roll paper I AR Coder {1} Install the accessory roll paper holder at the rear edge of the printer. (2) Take off the removable side of the roil paper flanges from the roll paper shaft, thee goad a paper roll onto the shaft. Note that only one flange can be removed. The other flange is permanently fixed.
{4) Pul both the paper release and paper bail levers forward, then instar the end of the paper between the upper cabinet and separator. If the end of the paper is curled making insertion difficult, cut it as Shawn in the figure, or straighten it by hand. 5} Open the access cover, push the paper 1 release lever to the rear position, and tum the platen nab unit the end of the paper appears between the platen and the paper bail rollers.
2. Loading a cut sheet (1} Pull both the paper release and paper bail levers to the farthest forward positions, then insert a cut sheet as you did the roU paper. S (2) Push the paper release lever to its rear position, then turn the platen knob 1o feed the paper, (3} Pull the paper release lever onward again, pull up the end of the sheet, and align the edges of the wastepaper and paper bail Severs 16 thaw rear positions as you did with the roll appear. {4} Turn the platen knob in the revers direction .
3-4 Powering On {1} Before switching the printer on, be sure to plug it into an electrical outlet. {2} Press the ON side of the power switch. (31 The POWER indicator on the operation panel comes on. {4) The READY indicator comes on approximately 10 seconds later, Caution: \f the printer is already connected to the computer, first turn on the computer before switching on the printer.
35 Self Testing . R The J-720 Printer has a self-test feature which checks the integrity of the print function in-the. local mods. Before performing on line printing, check the printer function according to the nohow procedure. (A self-test is possible in ether the “Non-selected”. or off line mode.) IR {1} Switch the printer on. The POWER indicator first comes on, follows by the READY indicator. {2} Press the SELECT switch. The READY indicator will go off.
3-6 Refilling the Ink Each ink tank contains approximately 5 cc of ink when the printer is shipped. If an INK indicator comas on during printing, add the appropriate coral of ink in the following manner. Do not try to add ink if the INK indicator is not Iit, as this may cause the ink tank to overflow. {1) Prepares an ink cartridge of the same color as the INK indicator. fl\ Cartridge cap (2) Take out the cartridge from its bag. Re@/ move the cartridge cap, tum it upside down, and fit It on the cartridge.
{4} After checking the color of ink.required, gently insert the cartridge into. the cartridge slot with the: TETRA NiE O The Carnage Acing toward. (6) “Crass down the cartridge cap until the top and bottom sealing films break. 1) The bottom sealing. film is broken by a projection within the ik tank: the top sealing fim is broken by a pointed projection within the cartridge cap. As a result, the ink flows into the ink tank.
4 Interfacing e X 26 printer-has e Contention OIT e CHEF panelist e ang With & personal completer or host systems. Use a signal cable that provides with the proper type connector. Since the connector is polarized, it can not be connected incorrectly, and then all connections should be mad with both the printer and computer muted off. 1. Electrical Conditions The standard interface uses TTL levels signals and a parallels! data transmission scheme.
2. Interface Signal and Timing {1} Signal name and its description " Direction N Pin No.| Signal Nome {print computer) Description STRUCTURE ® Strobe pulse to read data, 1 » The pulse width must be 1 sec or more at the primer, 2 DATA e e Input data 1 i 8 DATA ATR — * Am acknowledge pulse {with a pulse width of 4 10 Bisect or more) is produced at the completion of data input. The next data transfer is enabled after this pulse.
5-1 Character Cell and Dot Image Print 1. Character cell Each character cell for alphanumeric, symbol, and special charterers consists of 16 vertical dots by 12 horizontal dots in normal width mods. Character pitch: approx. 110 inch (10 CPI} 18 dots 0 12 dots 2. Dot image print A single pass of the print head prints 4 vertical dots by 1,024 horizontal dots. 0.21mm | 0.21mm i A 1420 inch 12384687S8 028 1024 A single print line {16 vertical dots) is, therefore, completed by 4 passes of the print head.
3. Selecting printable areas DIP switch No. 2 located on the rear interface pans allows the operator 1o select either the printable area beginning approximately 1/2 inch or 1 inch from the left edge of the paper as left margin. DIP switch No. 2: ON: 1,024 dots starting at 172 inch from the lat edge (set 10 ON at the factory), OFF: 1,024 dots starting at 1 inch from the deft edge 4.
5-2 Data Flow mage date registration buffer Mags date buffer Print tabular ¥ i i Commune: nation buffer: Print Interface Character data buffer Character S generator . i Control coda _J command Data transferred to the printer is temporarily stored in the communication buffer. Character data is then transferred 1o the character buffer and image data is transferred to the image buffer.
5-4 Control Codes This section describes the details of the control cuds which control the J-720. Printer. The control codes described below are valid only if DIP switch No. 1 located st the rear interface panel of the printer is on. Be sure to set DIP switch Note: In the descriptions that follow, the format < >y is used o represent the hexadecimal value of the ASCII codes. This. representation means hexadecimal notation. Function: The function of the CR code is delectable with DIP switch No.
Function: Performs a carriage return plus & line feed operation, Code: >y Description: The LF cede causes the printer to start printing if print data is in the buffer. The line feed is initially set to /6 inch when the power is trued on. it may also be set to nng/120 inch with the ESC T mne command, If a line feed spacing is not specified with the ESC T yang command, it will be assumed 1o be 118 inch. The automatic line feed adjustment is identical to that for the CR code.
Function: Performs-paper-fesds-tothe first e o1 176 ekt page., Code: <0G>y Description: Then FF code causes the printer to start printing if print'data is in the buffer, | Since the J-720 Printer usually prints 4 vertical dots at a time, line ford is performed-at piton. 1f the specified ling feed is not an integral multiple of 1730 ink.
Function: Moves the print goad 1o the next horizontal tah position. Code: <08y, Description: The HT code is treated as an ignored code if no horizontal tab is set. Since bit image data is always stored sequentially from the left margin, it is not affected by the movement of the print position caused by the HT aced or character data. Function: Clears all bit image data and character data within the buffers received before the CAN code.
Function: Sets the double width mods {in which the width 6f the characters is-doubled). Code: y Description: The double width mode is initially off when the power is turned on.
Function: Performs a micro line feed operation. Codes: Libby <41 >x Description: The ESC A code causes the printer to start printing if there is print data in the buffer. Since the JX720 Printer prints 4 vertical dots (1/30 inky per pass, this command should be used to print bit image data.
Function: Performs a Z730-Rch micro Tine ted operation. Codes: <1B>y <42y Description: The ESC B code causes the printer to start printing if there is print-data in the buffer. Since the line feed spacing of corresponds to the height of the characters {16 dots), the code may be conveniently used to draw dings or patterns using character codes. Function: Specifies the line feed spacing for the CR or LF cods to nyng/120 inch.
Function: Prints spaces for the number of dots specified by ng. (15ne<8) Code: 1By y, (where ng: <0134 to <084 Description: This command affects character positions but not bit image data. In the double width mode, the lengths of the spaces are doubled. Function: Specifies colors for the text and background. Code: <] By <433y ninny gungy, (where 0y <303y 1o <375y, gr <30 to <37>y) Description: ny specifies the color of the characters and ng specifies the color of the background as follows.
Function: Underlines the characters that Hollow it. Code: y y Description: Characters are underlings by printing tha last row of dots in each character cell, 16 dote Undo fine Function: Clears the underline function for characters that follow it. Code: <1B>y H Description: The underline function is initially off when the power is turned on.
Function: Prints the characters that follow it in boldface. Code: <1Bm>y <21y Description: Boldface letters are printed by printing over the same characters after shifting them by one dot in the horizontal direction. Function: Clears the boldface print mode. Code: <1B>y <2234 Description: The boldface print mode is initially off when the power is turned on.
Function: g, Code: y <4C>y <>y y, (whets n,: <30y 10 <32y, Nyl y to <38>y) Description: The page length is set 1o Ming (ny represents the tens digit; ng represents the ones digit}, yang can be sat, in ASCII aced, to any value from <305y <345y = 4 to <32y
Function: Sat the left and right margins and horizontal tabs. Code: y <48y ware and r each represent a two byte ASCII code from <30, <302, t© <3Py <39y, Description: The ESC H code sets the left margin, horizontal tabs, and right margin. If only the left and tight margins are 1o be sat with this command, set <30>y <30>y. and 1 are two-digit decimal numbers represented by ASCII odes from <303y <30y 10 <39y <3y : n Number of horizontal tabs {max. 32).
I any of the values for not satiety the conditions above, only the valid settings will be made and the horizontal tab positions beyond the right margin position will be pedigreed. e Qr nee this command is executed, all previous tab settings will be cleared. if the left arginine is gain set with this command, all the data remaining in the buffers is cleared. The settings when the power is muted on are as follows: When DIP switch and no horizontal tabs are set.
Function: Sets the vertical tabs. Code: 1B <562y Where ara two-byte ASCII codes, represented by values from <30y <30>y to <382y <39>y. Description: The ESC V code sets the vertical bets aa shown on the 1170 O P98 —interpreter e non e right. The numbers 818 all two-digit % decimal numbers represented by ASCII codes from Vertical tab 1 y <30>p to
Function: Clears gl i Horizontal s, Code: <1By <32y Function: Restores the initial settings for the paper format. Code: y <34>y Description: The ESC 4 code sets the papa length to 12 inches and the width of the printable area to 1,024 dots, clears all horizontal bets, and sets the vertical tabs at T-inch intervals, Once this command Is executed, all bit image data and character data are cleared from their respective buffers. Function: Clears all vertical tabs.
Function: This command transfers dot image data the printer. Code: <183y <493 where “m* is in the range of <20>y to <3F>u. np Ny Pis @ three-digit decimal number representing ASCII codes. For example, the number 012 is represented in ASS by <30>y <313y <82 Description: The J-720 printer prints up to four vertical dots by 1,024 horizontal dots with each pass of the print head. MSB 188 MSB L5B batiste 2nd byte e (< Dot ine 1 -~ Dot fine 2 -+ Dot e 3 -+ Dot line 4 4 dots (1730 inch) { Max, 1,024 dots.
Function: This command transfers dot image data in compressed mode. Data that repeats in the dot image data is represented by the number of repetitions in bytes and & single byte of the data that repeats. This is done to reduce the amount of data. Using this command to transfer dot image data containing many identical bytes reduces the time required for data transfer.
Function: st dormer te T Code: 1By <4633 where m: <30y, <345y, <38>y or <3C>y. . ng fiz Ny ng: Specifies a 4-digit decimal number represented In ASS codes. For example, 1024 is expressed in Paschal as <313y <30y <32y <34>y 18t gnd Description; breve 158 (o)) 1/30 inks {upper 4 dots) (bs) 1130 inch () () {lower 4 dots} f Max. 1,024 i The ESC F code simultaneously transfers the dot image data for 2 passes.
Example: To print the image data using the ESC F command is following sequence. ESC F m meninges : Dat image data transfer ESC F m' mingling XX oo Xn ESC A 1/304nch print ESC A print ESC F m genning Xix Dot mags data transfer ESC F m' beginning X1Xp Xn ESC A 1430-rte print ESC A print Note: If the line feed spacing is set to 8120 inch with the ESC T command, the ESC A command may be replaced with the CR or LF code.
Function: Tories The tads Saliently T ihe Phage data butter 1o the image data registration area. Code: <1B>y py m where "m” is a value between <40>y and <443y, Description: The ESC S m and ESC R m (described later) commands serve 1o reduce the time required for data transfer when printing repetitive dot image data.
Function: Ca pies the data in the image data registration area to the image tads buffer. Code: <|Bmy <622 m where “m"” is a value between <403y, and <44>4, Description: m: Specifies the colors) of the image data to be copied to the image data buffer.
6-1 Preventive Maintenance 1. Cleaning . To maintain optimum performance of the preterit, clean it periodically as described below. Before cleaning, the printer should be switched off and the plug pulled out of the electrical outlet. < {1} Use a dry, soft cloth 16 remove dust and sating from the exterior of the printer.
6-2 When There's a Problem The symptoms below will help you correct a problem or determine if a service technician should be called to correct the problem Symptom Check point Distorted characters Press the RECOVERY switch on the rear panel to reset the print head. Distorted characters when the bidirectional print mode s selected. Adjust the ADJUST switch on the rear panel {see page 10). Characters are normal immediately after the RECOVERY switch is pressed but are soon distorted.
6-3 Shipping Procedure When the printer is to be left unused for more than one week, transported. ar. procedure described below: (1) Set the POWER switch (at Sift side of the printer} to OFF while holding down the SELECT switch, {2} Make sure that the POWER indicator {green) .on the Key snider aitch front operation pane! goes off. It will be abut 50 > seconds before the light goes off, <2k trek cap @) Pull out the power cord from the electrical outlet.
{7) Mounting the transport part {drain cover} Mount the drain cover to absorb the liquid remaining i the ink gutter pipe. Mounting: 1} Push the drain cover all the way into the ink gutter. 2) More the drain cover all the way to the left. Shipping hardware for retaining print head (Carriage luck {8 Replace the maintenance cartridge with the shipping dummy cartridge. (9} When transporting to & distant location, secure the access cover with adhesive tape and pack the printer unit into the original carton.
control-Coder PO “Page ESCAPE Clears all vertical tabs. 48 ESC I'm npnyngXexp Transfers dot image data, the printer. ' 49 *n Escape t‘fi x;, i Transfers compressed dot image data to the printer. 51 TQIXaXy ESC F m signing's Transfers & vertical dots as one byte of dot image data, 52 %o Escapism Copies data currently in the image data buffer to the carnage 54 data registration area.
7-3 Number Table The following table shows the correspondence between binary, decimal, and hexadecimal burners: Decimal Binary | Hexadecimal| Decimal Binary | Hexadecimal | Decimal Binary | Hexadecimal 8 oo 45 00101161 20 g 61011010 5A 1 01 46 00101110 ZE 91 01011011 5B 2 00600010 0z 47 ZF 92 01011100 5C 3 00pa0011 03 48 30 63 01011101 5D 4 BODICE 64 49 0110001 ar 94 SE 5 05 50 60110010 32 95 5F # 06 51 040110011 33 96 60 7 o7 52 00110100 34 97 61 8 60001000 68 53 00116101 35 98 62 9 09 54 GLADIOLI 36 88 61