Technical Brief (Impact Printers)
Page 4
...95 and Windows 98 drivers guarantees ease of use right out of built-in fonts that allow you save paper and trouble, and precisely line up printing on the control panel. EPSON impact printers offers these types of the Windows fonts resident on a printer. Paper parking Supports... "parked," while paper from most paper paths, by a button on pre-printed forms. LL L Versatility-Flexible interfacing Most EPSON impact printers offer both standard bidirectional parallel and serial interfaces which help you to precisely line-up documents, include automatic tear-off Can be...
...95 and Windows 98 drivers guarantees ease of use right out of built-in fonts that allow you save paper and trouble, and precisely line up printing on the control panel. EPSON impact printers offers these types of the Windows fonts resident on a printer. Paper parking Supports... "parked," while paper from most paper paths, by a button on pre-printed forms. LL L Versatility-Flexible interfacing Most EPSON impact printers offer both standard bidirectional parallel and serial interfaces which help you to precisely line-up documents, include automatic tear-off Can be...
Product Support Bulletin(s)
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... application programs, which printer driver selection should I use the FX-870/1070's built-in IBM printer emulation mode, choose IBM Proprinter (II or XL, for narrow or wide carriage), IBM Graphics printer or IBM printer, in order of the printer. A. Q. FX-870 FX-850 EX-800 FX-85 FX-80+ FX-80 Epson Printer Q-pin printer FX-1170 FX- 1050 EX- 1000 FX-185 FX-100+ FX-100 If none of...
... application programs, which printer driver selection should I use the FX-870/1070's built-in IBM printer emulation mode, choose IBM Proprinter (II or XL, for narrow or wide carriage), IBM Graphics printer or IBM printer, in order of the printer. A. Q. FX-870 FX-850 EX-800 FX-85 FX-80+ FX-80 Epson Printer Q-pin printer FX-1170 FX- 1050 EX- 1000 FX-185 FX-100+ FX-100 If none of...
Service Manual
Page 38
...BOARD ASSEMBLY, C094 MAIN (Main Control Circuit B-d 1-29 q.6.I MASK ROM 0: n: ~~ 0' CN2 for OPTION IF TRANSISTOR . . It consists of the printer. PF MOTOR DRIVER LPAI 476H CPU TM P90C041F CENTRONICS l/F CR MOTOR o ~~~f~4M ~ ~> E2PROM 7 \ n \ Ill \' " q " *PS RAM 1 Cl...functions of a TMP90C041F 8-bit CPU, an E05A55YA gate array, an E2PROM, a PSRAM, a MASK ROM, motor drivers, and head drive transistors. o 0 T /" ' GATE ARRAY E05A66YA PF MOTOR DRIVER pPA1476H CPU TM P90C041F CENTRONICS l/F CR MOTOR \//r g;!f;24M r~ \ ;--o'"-y qE2pR0M ,0 (0 0ml0 ,PS RAM E...
...BOARD ASSEMBLY, C094 MAIN (Main Control Circuit B-d 1-29 q.6.I MASK ROM 0: n: ~~ 0' CN2 for OPTION IF TRANSISTOR . . It consists of the printer. PF MOTOR DRIVER LPAI 476H CPU TM P90C041F CENTRONICS l/F CR MOTOR o ~~~f~4M ~ ~> E2PROM 7 \ n \ Ill \' " q " *PS RAM 1 Cl...functions of a TMP90C041F 8-bit CPU, an E05A55YA gate array, an E2PROM, a PSRAM, a MASK ROM, motor drivers, and head drive transistors. o 0 T /" ' GATE ARRAY E05A66YA PF MOTOR DRIVER pPA1476H CPU TM P90C041F CENTRONICS l/F CR MOTOR \//r g;!f;24M r~ \ ;--o'"-y qE2pR0M ,0 (0 0ml0 ,PS RAM E...
Service Manual
Page 110
problem corrected? REV.-A Flowchart (2) carriage operation abnormal START CN3, 4, 5, 6, 7, 8, 9, and 13 connecting the BOARD ASSY., C094 MAI and the printer mechanism Yes Secure the connectors. at room v Replace the BOARD ASSY,, C094 MAIN. END * END * Note: If any coils in the CR motor are shorted, also test the motor drivers on the BOARD ASSY., C094 MAIN. 5-6 problem corrected? v Refer to Section 5.5, Repairing the Printer Mechanism. coil resistance correct (5 ohms +/- 7 '%.
problem corrected? REV.-A Flowchart (2) carriage operation abnormal START CN3, 4, 5, 6, 7, 8, 9, and 13 connecting the BOARD ASSY., C094 MAI and the printer mechanism Yes Secure the connectors. at room v Replace the BOARD ASSY,, C094 MAIN. END * END * Note: If any coils in the CR motor are shorted, also test the motor drivers on the BOARD ASSY., C094 MAIN. 5-6 problem corrected? v Refer to Section 5.5, Repairing the Printer Mechanism. coil resistance correct (5 ohms +/- 7 '%.
Service Manual
Page 112
coil resistance correct (63 ohms +/- 3 at room smoothly when the printer No [ I Yes vEND vEND Note: If any coils in the PF motor are shorted, also test the motor drivers on the BOARD ASSY., C094 MAIN. 5-8 Repair the BOARD ASSY., C094 MAIN. I Refer to Section 5.5, Repairing the Printer Mechanism. END * Replace the PF motor. REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. Insert connector CN6 correctly.
coil resistance correct (63 ohms +/- 3 at room smoothly when the printer No [ I Yes vEND vEND Note: If any coils in the PF motor are shorted, also test the motor drivers on the BOARD ASSY., C094 MAIN. 5-8 Repair the BOARD ASSY., C094 MAIN. I Refer to Section 5.5, Repairing the Printer Mechanism. END * Replace the PF motor. REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. Insert connector CN6 correctly.
Service Manual
Page 123
... Self test printing abnormal. The printer does not print a particular dot. Check if the tip of the MOTOR ASSY., PF. Set the LEVER, G. Foreign substances are disconnected, or printhead FFC. Check the gears for any pin is shorted, also check the drivers on the main board. 5-19...in the paper path. there is not adjusted properly. The resistance should be approximately 16.5 ohms. Check if the dot wire is not uniform. Repairing the Printer Mechanism (Continued) symptom Cause Checkpoint Solution The carriage The common wires Check the common moves, but does not feed ...
... Self test printing abnormal. The printer does not print a particular dot. Check if the tip of the MOTOR ASSY., PF. Set the LEVER, G. Foreign substances are disconnected, or printhead FFC. Check the gears for any pin is shorted, also check the drivers on the main board. 5-19...in the paper path. there is not adjusted properly. The resistance should be approximately 16.5 ohms. Check if the dot wire is not uniform. Repairing the Printer Mechanism (Continued) symptom Cause Checkpoint Solution The carriage The common wires Check the common moves, but does not feed ...