Epson LQ-950 Product Support Bulletin
Contents
1. RE em connec ve INFORMATION Product Support Bulletin Subject Selecting the Page Length Setting on the LQ 950 1050 Printers Date 12 12 89 PSB No P 0059 Page 1 of 1 Originator RFA There have been several cases of service personnel replacing the MONMA circuit board because of an 8 5 inch form feed The LQ 950 1050 printers now support a page th setting of 8 5 inches This feature was implemented beginning wit version MO9 G5 for the LQ 950 09 02 for the LQ 1050 refer a Change Notice 0950 002 101050 010 for on these PROM updates To set the page length follow these steps 1 Place continuous paper in the tractor assembly set the paper type lever to the tractor feed position and turn the printer on 2 Load the paper by depressing the ON LINE button 3 Depress the LOAD EJECT button once If the printer beeps three times the page length will be selected by dip switch 2 1 11 12 inches the printer beeps four times the page length will be set to 8 5 inches Please check the currently set form length setting before replacing the MONMA circuit board in any printer which exhibits an incorrect form length symptom EPSON EPSON AMERICA INC SERVICE PRODUCT SUPPORT BULLETIN PSB NO 0035 DATE 11 29 88 PAGE 1 of 3 SUBJECT 10 850 950 1050 PRINTER QUESTIONS Feature to work Q How do I get the short tear of A The firs2. 7312 7314 CUT SHEET FEEDERS SINGLE BIN 806121 7339 7345 7340 DOUBLE BIN N A 7346 A 7347 A 7348 A 7343 A RIBBONS STANDARD BLACK 7753 7753 7767 7754 7762 STANDARD COLOR N A N A N A N A 7763 FILM BLACK 7768 7768 7769 7770 7764 INTERFACE_BOARDS SERIAL BUFFER 8143 8143 8143 8143 8143 SERIAL 8K BUFFER 8148 8148 8148 8148 8148 PARALLEL 32K BUFFER 8172 8172 8172 8172 8172 IEEE 488 8K BUFFER 8165 8185 8165 8165 8165 CABLES STANDARD IBM PARALLEL C1 9E A 1 9 C1 9E A 1 9 1 9 SERIAL DB 25 DB 9 C94 9 94 9 C94 9 C94 9 94 9 SERIAL DB 25 DB 25 C20 9 C20 9 C20 9 C20 9 20 9 SERIAL DIN 6 DB 9 N A 070 070 070 SERIAL DIN 6 DB 25 N A 8297 8297 8297 N A APPLE DB 25 DIN 6 8293 8293 8293 APPLE DIN 6 DIN 5 8239 8239 8239 N A FONT MODULES COURIER 7400A 7400A 7400A 7400A 7400A PRESTIGE 7401A 7401A 7401A 7401A 7401A SCRIPT 7402A 7402A 7402A 7402A 7402A OCR 8 7403A 7403A 7403A 7403A 7403A MULTI 7407 A 7407 A 7407 A 7407 A 7407 A MISC PRINTER ACCESSORIES WINDOWS DRIVER SOFTWARE DCB LQ2 DCB LQ2 DCB 102 DCB LQ2 DCB LQ2 APPLE MAC LQ SOFTWARE 842001 842001 842001 C842001 842001 LQ PATCH SOFTWARE 101 101 01 01 01 PRINTER STAND CPD 552 CPD 552 KP STAND STAND KP STAND
3. 10cpi 12cpi 15 Roman Proportional Sans Serif 10cpi 12cpi 15 1 Sans Serif Proportional Are there any optional fonts available Courier 10 12cpi 15 1 Prestige 10cpi 12cpi 15cpi Script 10cpi 12cpi 15cpi OCRB 10cpi Orator 10cpi Orator S 10 Multi Font Module Module 7400 Module 7401 Module 7402 Module 7403A Available with 7407 Available with 7407 Module 7407 lt ct Multi Font Module contains all the above listed fonts It is available for the 10 950 and 10 850 1050 with the upgrade 10850 10500 m at type of paper feeds do they support riction uilt in push feed tractor with paper tension unit ingle bin or dual bin Cut Sheet Feeder optional ull Tractor optional at size envelopes can they print on umber 6 and number 10 envelopes m t are the paper thickness specifications for multi t forms will print on continuous multi part carbonless forms one original and up to 3 copies The maximum paper ickness should not exceed 0 0126 inches W E B S R Wh N W P a t f it comes with the built in push feed tractor unit does it need an optional pull tractor When printing on multi part forms the optional pull tractor keeps the forms taut for more consistant paper feeding How do I switch from
4. parallel to serial in the printers The dip switches on the back of which interface is being used the printer determine NUMBER P 0035 PAGE 2 What if I want to install an optional serial interf board Install the optional interface as detailed in the User s Manual Then set the dip switches on the printer to the parallel position and then set the dip switches on the optional interface board to enable it Which optional serial interface boards will work The two current serial interface boards that work are the 8143 and the 8148 If I want to use the built in serial interface on the printer what cable do I use Epson markets two cables that allow direct connection to personal computers When connecting the 6 pin DIN to an IBM PC XT or compatible DB 25 serial port use cable 8297 When connecting to an IBM AT or compatible 9 pin serial port use cable CA 070 Does the LQ 850 950 1050 support the legal character set The LQ 950 does have the legal character set built in The LQ 850 1050 needs the upgrade kit kit LQ850 1050U to support the legal characters What is the upgrade kit for the LQ 850 1050 The upgrade kit 10850 10500 upgrades the printer to allow the use of the new dual bin cut sheet feeder product code for the LQ 850 7346 and for the LQ 1050 7348 What does the upgrade kit contain It has a new P RO
5. EPSON AMERICA INC EPSON Product Support Bulletin Subject 24 Pin Printer Error and Beep Codes Date 4 3 91 PSB No P 0076 Page s 1 of 4 Originator JV Epson printers issue beep tones when certain error conditions exist Those beeps can assist you in locating and repairing customer s printers The following error codes are listed by product name NOTE Most of the beeps issued by the printers are of 1 second duration with a 1 second pause between beeps Where the beeps or the pauses are longer it has been noted in the text The description 3 Beeps x 2 means two sets of three beeps LQ 200 AP 3000 1 beep BEL code 1 beep A Control Panel setting is accepted 3 beeps Paper End detected 5 beeps Abnormal carriage movement On Line light is flashing Printhead is over heated Carriage will stop until the printhead cools down LQ 500 LQ 510 LQ 1010 LQ 850 LQ 950 LQ 1050 11000 4000 AP 4500 1 beep BEL code 5 set beep 1 beep A Control Panel setting is accepted 3 beeps Paper End detected 5 beeps Abnormal carriage movement LQ 800 LQ 1000 L750 1 beep 1 beep 3 beeps 5 beeps 5 beeps LQ 860 1 beep 1 beep 3 beeps 5 beeps 5 beeps 5 beeps LQ 1500 1 beep 5 beeps 5 beeps PSB No P 0076 Page 2 of 4 BEL code A Control Panel setting is accepted Paper End detected Abnormal carriage movement 5 sec pause between beeps 35V supply is abnormal BEL c
6. M instruction sheet an errata sheet and a new user s manual Is the upgrade kit for the LQ 950 too No the LQ 950 comes standard with the upgrade built in EPSON EPSON AMERICA INC SERVICE PRODUCT SUPPORT BULLETIN PSB NO 0028 DATE 8 1 88 PAGE lof 1 SUBJECT 05 FOR THE 10 850 950 1050 PRINTERS The following contains information on using the 10 850 1050 PDOS diagnostics 765108801 for MS DOS compatible 765108901 for QX 16 computers to troubleshoot the LQ 850 950 1050 series printers USING PDOS use PDOS on the 10 850 950 1050 printers a serial connection must be made to the host computer using a suitable cable Epson part no 8297 connects the LQ s 6 pin DIN connector to a standard DB 25 port This cable must be connected to COM1 on the host computer DIP switch positions 2 3 and 2 4 must be set to ON and 2 5 and 2 6 to OFF This sets the printer to 9600 baud 8 data bits and no parity PDOS will automatically activate and configure the host computer s serial port PDOS is then started by booting off the supplied disk and following the prompts given on screen a detailed manual is available on the disk USAGE ON 10 950 The PDOS diagnostics for the 10 850 1050 also operate on the 10 950 when the following precautions observed 1 When the PDOS menus prompt for the selection of printer type the 10 850 should be chosen 2 Jumper J7 on the MONMA board must b
7. ck to the SRAM has failed The SRAM could be bad This is a motor control error Four possible areas of failure are a CR home condition not detected at power up b Platen gap motor HP not detected correctly c Friction Tractor feed switching error d Physical obstruction such as a jammed ribbon Skewed paper detect error Since the initial reading upon loading a single sheet paper the paper has skewed This is a printhead wire protection feature 12 illegal paper positioning 1 If the paper is loaded using the knob instead of the LOAD EJECT switch this error condition will occur This is a printhead wire protection feature 2 PE sensor may have failed or is not connected 20 CPU error An undefined op code was detected NOTES Error codes 11 and 12 are usually caused by new operators who are un familiar with the machine Both of these errors are corrected by turning the printer off taking out the paper and turning the printer back on Both features were added to ensure proper paper handling and prevent paper jams which can result in printhead failures Incorrect jumper settings on the ROMA board may cause errors 10 or 20 The correct settings are documented in the Service Manual page A 54 figure A 52 and on TIB LQ2550 005 Errors 0 2 3 10 and 20 may require a repair adjustment or replacement li EE E E Dieta POLE IE Ba al AC ae is es ea S E T eb RR eT
8. e moved from the 136 to the 80 column position when performing the Carriage motor test jumper should then be returned to its original position when testing is completed Applies to MS DOS compatible version of PDOS EPSON AMERICA SERVICE 23610 TELO AVENUE TORRANCE CALIF 90505 EPSON EPSON AMERICA INC SERVICE PRODUCT SUPPORT BULLETIN PSB NO 0027 DATE 7 16 88 PAGE 1 of 1 SUBJECT 10 950 FORM LENGTH SETTING The LQ 958 is designed to handle paper widths ranging from 4 0 to 12 0 inches common application will be the use of standard 8 5 x 11 forms orientated as shown in Fig 1 This leaves a form length of 8 5 inches 11 8 5 FIG 1 There is no DIP switch provided for setting the form length to 8 5 inches When using software that sends form feed commands or to properly advance the paper using the front panel form feed button a printer control code must be sent through software Table 1 lists the control code necessary to set the form length to 8 5 6 lines per inch x 8 5 51 lines Each software package may require a specific format for this code please refer to the software manual or contact the manu facturer for detailed information on this subject ESC E Bi Decimal 27 67 51 Hexadecimal 1B 43 33 TABLE 1 11 form feeds whether from software or the control panel should advance the correct amount upon receipt of this code If not perform a hex dump to
9. ode 5 sec beep A Control Panel setting is accepted Paper End detected Color select mechanism error 5 sec beep 5 sec between beeps Abnormal carriage movement 5 sec beep 5 sec between beeps CG ROM failure 5 sec beep 5 sec between beeps BEL code Paper End detected Abnormal carriage movement 5 sec pause between beeps PSB No 0076 Page 3 of 4 LQ 2500 NOTE Printers with LCD displays use error messages along with beeps to inform the user of problems The following messages will help you to troubleshoot problems A blank LCD screen with the Power on LED lit can be caused by a bent of the PROMS or jumper J1 may be set incorrectly 1 beep BEL code 5 beeps Abnormal voltage 5 beeps Abnormal carriage movement LQ 2500 LCD Codes 00 5 sec pause between beeps Invalid ID request to CGROM 03 EEROM read write error 10 Abnormal carriage movement LQ 2550 1 beep BEL code 3 beeps Paper End detected 5 beeps Abnormal carriage movement 5 sec pause between beeps 5 beeps Platen Gap adjustment error 5 sec pause between beeps 5 beeps Case open LQ 2550 LCD Codes 00 1 The font could not be found The printer s internal program could not find the target font 2 Missing or damaged 7 ROM 02 internal ROM check does not match The versions may have been mixed PSB No 0076 Page 4 of 4 LQ 2550 cont 03 10 A Verify After Write che
10. see if the code is being received by the printer and to verify the software does send a form feed hex code C NOTE This command functions on all Epson dot matrix printers in Epson mode Any form length up to 127 lines can be accommodated by changing the value of the last numeral EPSON AMERICA SERVICE 23610 TELO AVENUE TORRANCE CALIF 90505 INFORMATION Product Support Bulletin Subject Epson Dot Matrix Printer Options and Accessories Date 8 1 89 PSB No P 0017B Page 1 of 2 Originator RFA 9 PIN DOT MATRIX OPTIONS TRACTOR UNITS PULL TRACTOR 800061 7311 7312 A 8309 A CUT SHEET FEEDERS SINGLE BIN 806121 7339 7340 N A DOUBLE BIN N A 7346 A 7348 A RIBBON STANDARD BLACK 8750 8750 8755 8766 INTERFACE BOARDS SERIAL BUFFER 8143 8143 8143 8143 SERIAL 8K BUFFER 8148 8148 8148 8148 PARALLEL 32K BUFFER 8172 8172 8172 8172 IEEE 488 8K BUFFER 8165 8165 8165 8165 CABLES STANDARD IBM PARALLEL C1 9E A 1 9 C1 9E A C1 9E A SERIAL DB 25 TO DB 9 94 9 94 9 94 9 94 9 SERIAL DB 25 DB 25 C20 9 020 9 C20 9 C20 9 MISC PRINTER ACCESSORIES PRINTER STAND CPD 552 CPD 552 KP STAND 8501 A CONT PSB No P 0017B Page 2 of 2 24 PIN MATRIX OPTIONS LQ 510 10 850 10 950 10 1050 10 2550 TRACTOR _UNITS PULL TRACTOR 800061 7311 A 7313
11. t step is to turn the dip switch 2 7 to the ON position Then there are two ways to activate the short tear off The first way is to send a form feed at the end of each page The second way is to send 66 lines of data to the printer In both instances data transmission must ee a minimum of 3 seconds before the feature is acti vate Q When printing on single sheets each page drops down several lines Why he number of printable lines on single sheets are 61 or 62 hange the number of lines page in your software package here are the P ROM and Character Generator ROM located on he main board of the LQ 850 950 1050 H gt he P ROM is in location 9 The Character Generator ROM in location 6A Q What size buffer does the 10 850 950 1050 have A 6K bytes OK bytes This is selectable by dip switch 1 8 Q What are the printing speeds A The printing speeds are Pitch Quality Characters Second Draft 220 10 LQ 73 12 Draft 264 12 LQ 88 Q What ribbons does the LQ 850 950 1050 take Printer Standard Ribbon Film Ribbon LQ 1768 10 950 7767 7769 10 1050 7754 7770 Does the LQ 850 950 1050 support color A No EPSON AMERICA SERVICE 23610 TELO AVENUE TORRANCE CALIF 90505 NUMBER 0035 What fonts are built into the LQ 850 950 1050 Draft Roman
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