Technical Brief (Impact Printers)
Page 4
...; 3.1x, Windows NT 3.51/4.0, Windows 95 and Windows 98 drivers guarantees ease of use right out of Seiko Epson Corporation. 1/00 Other trademarks are available on the control panel. Automatic tear-off Can be automatic or activated by pressing a button on a printer. EPSON impact printers offers these types of the Windows fonts resident on pre...
...; 3.1x, Windows NT 3.51/4.0, Windows 95 and Windows 98 drivers guarantees ease of use right out of Seiko Epson Corporation. 1/00 Other trademarks are available on the control panel. Automatic tear-off Can be automatic or activated by pressing a button on a printer. EPSON impact printers offers these types of the Windows fonts resident on pre...
Product Support Bulletin(s)
Page 3
... with a built-in order of 6 6. A. A. If a printer driver selection is not shown for narrow or wide carriage), IBM Graphics printer or IBM printer, in that plugs into the back right-hand side of the printer. 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 preference. Q. How do...
... with a built-in order of 6 6. A. A. If a printer driver selection is not shown for narrow or wide carriage), IBM Graphics printer or IBM printer, in that plugs into the back right-hand side of the printer. 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 preference. Q. How do...
Service Manual
Page 38
... 476H CPU TM P90C041F CENTRONICS l/F CR MOTOR o ~~~f~4M ~ ~> E2PROM 7 \ n \ Ill \' " q " *PS RAM 1 Cl"lp E ~ o0 Q ~- It consists of the printer. 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 I MASK ROM 0: n: ~~ 0' CN2 for OPTION IF TRANSISTOR . . HEAD DRIVE GATE ...The CPU on this board controls all the main functions of a TMP90C041F 8-bit CPU, an E05A55YA gate array, an E2PROM, a PSRAM, a MASK ROM, motor drivers, and head drive transistors.
... 476H CPU TM P90C041F CENTRONICS l/F CR MOTOR o ~~~f~4M ~ ~> E2PROM 7 \ n \ Ill \' " q " *PS RAM 1 Cl"lp E ~ o0 Q ~- It consists of the printer. 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 I MASK ROM 0: n: ~~ 0' CN2 for OPTION IF TRANSISTOR . . HEAD DRIVE GATE ...The CPU on this board controls all the main functions of a TMP90C041F 8-bit CPU, an E05A55YA gate array, an E2PROM, a PSRAM, a MASK ROM, motor drivers, and head drive transistors.
Service Manual
Page 110
problem corrected? v Refer to Section 5.5, Repairing the Printer Mechanism. coil resistance correct (5 ohms +/- 7 '%. 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 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. problem corrected?
problem corrected? v Refer to Section 5.5, Repairing the Printer Mechanism. coil resistance correct (5 ohms +/- 7 '%. 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 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. problem corrected?
Service Manual
Page 112
REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. END * Replace the PF motor. I Refer to Section 5.5, Repairing the Printer Mechanism. 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. Insert connector CN6 correctly.
REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. END * Replace the PF motor. I Refer to Section 5.5, Repairing the Printer Mechanism. 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. Insert connector CN6 correctly.
Service Manual
Page 123
...coil resistance of the MOTOR ASSY., PF. in the printhead FFC wires in the t e s t printing is worn. The printer does not print a particular dot. REV.-A Problem Self test printing abnormal. The correct gap is defective. The printhead is no continuity. The resistance should be ...approximately 16.5 ohms. Check if the dot wire is shorted, also check the drivers on the main board. Visually check the paper path for Replace the damage or wear. The printer prints but the self- there is defective. Replace the printhead. ...
...coil resistance of the MOTOR ASSY., PF. in the printhead FFC wires in the t e s t printing is worn. The printer does not print a particular dot. REV.-A Problem Self test printing abnormal. The correct gap is defective. The printhead is no continuity. The resistance should be ...approximately 16.5 ohms. Check if the dot wire is shorted, also check the drivers on the main board. Visually check the paper path for Replace the damage or wear. The printer prints but the self- there is defective. Replace the printhead. ...