Technical Brief (Impact Printers)
Page 4
.... Bundled Microsoft Windows® 3.1x, Windows NT 3.51/4.0, Windows 95 and Windows 98 drivers guarantees ease of use right out of built-in fonts Each EPSON impact printer includes a variety of the box. DOS applications will automatically switch to the tear-off ,... for accuracy L Windows applications will automatically advance the paper to the interface receiving data. EPSON Sales Training EPSON is printed, the printer will overide all EPSON impact printers Proportionally-spaced scalable fonts-selectable in fonts that allow you save paper and trouble, and precisely...
.... Bundled Microsoft Windows® 3.1x, Windows NT 3.51/4.0, Windows 95 and Windows 98 drivers guarantees ease of use right out of built-in fonts Each EPSON impact printer includes a variety of the box. DOS applications will automatically switch to the tear-off ,... for accuracy L Windows applications will automatically advance the paper to the interface receiving data. EPSON Sales Training EPSON is printed, the printer will overide all EPSON impact printers Proportionally-spaced scalable fonts-selectable in fonts that allow you save paper and trouble, and precisely...
Product Support Bulletin(s)
Page 3
... FX-870/1170 printers come standard with FX-870/1170 printers? Q. There are currently two (2) optional interfaces to choose from within your application software, contact your software manufacturer to determine whether they offer a printer driver update or if they plan to operate with a 32K buffer. 8. A. 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...
... FX-870/1170 printers come standard with FX-870/1170 printers? Q. There are currently two (2) optional interfaces to choose from within your application software, contact your software manufacturer to determine whether they offer a printer driver update or if they plan to operate with a 32K buffer. 8. A. 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...
Service Manual
Page 38
...printer. o r ~ r '- ~0 "- I +7 "MASK I 4;~- 'OM HEAD DRIVE CN2 for OPTION l/F ? HEAD DRIVE GATE ARRAY TRANSISTOR E05A66YA c80-column model> Figure 1-12. 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"lp E ~ o0 Q ~- o 0 T /" ' GATE ARRAY E05A66YA PF MOTOR DRIVER... 8-bit CPU, an E05A55YA gate array, an E2PROM, a PSRAM, a MASK ROM, motor drivers, and head drive transistors. BOARD ASSEMBLY, C094 MAIN (Main Control Circuit B-d 1-29 q.6.I MASK ROM 0: n: ~~ 0' CN2...
...printer. o r ~ r '- ~0 "- I +7 "MASK I 4;~- 'OM HEAD DRIVE CN2 for OPTION l/F ? HEAD DRIVE GATE ARRAY TRANSISTOR E05A66YA c80-column model> Figure 1-12. 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"lp E ~ o0 Q ~- o 0 T /" ' GATE ARRAY E05A66YA PF MOTOR DRIVER... 8-bit CPU, an E05A55YA gate array, an E2PROM, a PSRAM, a MASK ROM, motor drivers, and head drive transistors. BOARD ASSEMBLY, C094 MAIN (Main Control Circuit B-d 1-29 q.6.I MASK ROM 0: n: ~~ 0' CN2...
Service Manual
Page 110
v Refer to Section 5.5, Repairing the Printer Mechanism. at room v Replace the BOARD ASSY,, C094 MAIN. 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. 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? coil resistance correct (5 ohms +/- 7 '%.
v Refer to Section 5.5, Repairing the Printer Mechanism. at room v Replace the BOARD ASSY,, C094 MAIN. 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. 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? coil resistance correct (5 ohms +/- 7 '%.
Service Manual
Page 112
Repair the BOARD ASSY., C094 MAIN. Insert connector CN6 correctly. I Refer to Section 5.5, Repairing the Printer Mechanism. REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. END * Replace the PF motor. 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. I Refer to Section 5.5, Repairing the Printer Mechanism. REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. END * Replace the PF motor. 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
Service Manual
Page 123
... FFC wires in Chapter 4. The printhead is 0.36-0.40 mm. Replace the printhead. The correct gap is defective. Replace the FFC. The printer prints but the self- Check the gears for any coil is worn. Paper feeding abnormal. Measure the coil resistance of the... is too light or the print density is not adjusted properly. The resistance should be approximately 16.5 ohms. Check if the dot wire is shorted, also check the drivers on the main board. Replace the printhead. The resistance should be approximately 63 ohms. Replace the MOTOR ASSY., PF. (If...
... FFC wires in Chapter 4. The printhead is 0.36-0.40 mm. Replace the printhead. The correct gap is defective. Replace the FFC. The printer prints but the self- Check the gears for any coil is worn. Paper feeding abnormal. Measure the coil resistance of the... is too light or the print density is not adjusted properly. The resistance should be approximately 16.5 ohms. Check if the dot wire is shorted, also check the drivers on the main board. Replace the printhead. The resistance should be approximately 63 ohms. Replace the MOTOR ASSY., PF. (If...