Technical Brief (Impact Printers)
Page 4
... EPSON impact printers offer EPSON Type B interface slots that are available on your computer. Versatility-Built-in fonts Each EPSON impact printer ... Most EPSON impact printers offer both standard bidirectional parallel and serial interfaces which make the printers compatible...printer will overide all EPSON impact printers Proportionally-spaced scalable fonts-selectable in 2-point increments, available on EPSON 24-pin impact printers... adjustments. EPSON Sales Training EPSON is backed out and "parked," while paper from most EPSON impact printers. EPSON impact printers offers these...
... EPSON impact printers offer EPSON Type B interface slots that are available on your computer. Versatility-Built-in fonts Each EPSON impact printer ... Most EPSON impact printers offer both standard bidirectional parallel and serial interfaces which make the printers compatible...printer will overide all EPSON impact printers Proportionally-spaced scalable fonts-selectable in 2-point increments, available on EPSON 24-pin impact printers... adjustments. EPSON Sales Training EPSON is backed out and "parked," while paper from most EPSON impact printers. EPSON impact printers offers these...
Product Support Bulletin(s)
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... FX-870/1170 are available from within your application software, contact your software manufacturer to determine whether they offer a printer driver update or if they plan to choose from, either the C823051 with a OK buffer or the C823071 with serial communications? 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 are available from within your application software, contact your software manufacturer to determine whether they offer a printer driver update or if they plan to choose from, either the C823051 with a OK buffer or the C823071 with serial communications? 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
... 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. 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 . . q.6.I 4;~- 'OM... both the 136-column model and the 80-column model. HEAD DRIVE GATE ARRAY TRANSISTOR E05A66YA c80-column model> Figure 1-12. It consists of the printer.
... 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. 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 . . q.6.I 4;~- 'OM... both the 136-column model and the 80-column model. HEAD DRIVE GATE ARRAY TRANSISTOR E05A66YA c80-column model> Figure 1-12. It consists of the printer.
Service Manual
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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. 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 problem corrected? 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. 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 problem corrected? at room v Replace the BOARD ASSY,, C094 MAIN. problem corrected?
Service Manual
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END * Replace the PF motor. REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. 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.
END * Replace the PF motor. REV.-A Flowchart (4) paper feeding abnormal c" (==) Load the paper correctly. 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
... or the print density is not driving the gear correctly. Paper feeding abnormal. The printer prints but the self- The MOTOR ASSY, PF is not uniform. Table 5-6. Repairing the Printer Mechanism (Continued) symptom Cause Checkpoint Solution The carriage The common wires Check the common moves...any foreign substances. The platen gap is 0.36-0.40 mm. The resistance should be approximately 16.5 ohms. Check if the dot wire is shorted, also check the drivers on the main board. The correct gap is not adjusted properly. The printhead is shorted, also check the...
... or the print density is not driving the gear correctly. Paper feeding abnormal. The printer prints but the self- The MOTOR ASSY, PF is not uniform. Table 5-6. Repairing the Printer Mechanism (Continued) symptom Cause Checkpoint Solution The carriage The common wires Check the common moves...any foreign substances. The platen gap is 0.36-0.40 mm. The resistance should be approximately 16.5 ohms. Check if the dot wire is shorted, also check the drivers on the main board. The correct gap is not adjusted properly. The printhead is shorted, also check the...