Appendix B
The LQ-570+/1070+
Differences between the LQ-570+/1070+ and the LQ-570/1070 . . B-1
Important Component Differences . . . . . . . . . . . . . . . . . B-1
Faster Print Speeds. . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Faster Bit Image Print Speeds . . . . . . . . . . . . . . . . . . . . B-2
Faster Paper Feed Speeds. . . . . . . . . . . . . . . . . . . . . . B-2
Lower Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Additional Scalable Fonts . . . . . . . . . . . . . . . . . . . . . . . B-2
Character Table Differences . . . . . . . . . . . . . . . . . . . . . B-3
Jumper Differences . . . . . . . . . . . . . . . . . . . . . . . . . .
B-4
Printer Weight Differences . . . . . . . . . . . . . . . . . . . . . . B-4
Printer Height Differences . . . . . . . . . . . . . . . . . . . . . . B-4
Weight Difference for Cut Sheet Carbonless
Duplicating Paper. . . . . . . . . . . . . . . . . . . . . . . . . B-4
Cl07 MAIN Board Component Layout. . . . . . . . . . . . . . . . . B-5
LQ-570+/1070+ Control Circuit Operation. . . . . . . . . . . . . . . B-6
Reset Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Sensor Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11
CR Motor Drive Circuit. . . . . . . . . . . . . . . . . . . . . . . . B-12
PF Motor Drive Circuit. . . . . . . . . . . . . . . . . . . . . . . . B-13
Printhead Drive Circuit. . . . . . . . . . . . . . . . . . . . . . . . B-14
Disassembly Procedures Unique to the LQ-570+/1070+ . . . . . . B-15
Removing the Cl07 MAIN Board Assembly. . . . . . . . . . . B-15
Removing
the C062 PSB Power Supply Board Assembly. . . B-17
Removing
the C062 PNL Board. . . . . . . . . . . . . . . . . . . B-18
Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-19
Circuit Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . B-19
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-20
Error Codes. . . . . . . . . . . . . . . . . . . . . . . .
B-21
Reference Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-23
Figures
Figure B-1. C107 MAIN Board Component Layout. . . . . . . . . B-5
Figure B-2. Control Circuit Block Diagram . . . . . . . . . . . . . . B-6
Figure B-3. Data Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . B-7
Figure B-4. Reset Circuit Block Diagram . . . . . . . . . . . . . . . B-9
Figure B-5. Timing of Reset Signal . . . . . . . . . . . . . . . . . . . B-10
Figure B-6. Sensor Circuit Block Diagram . . . . . . . . . . . . . . B-11
Figure B-7. CR Motor Drive Circuit. . . . . . . . . . . . . . . . . . B-12
Figure B-8. PF Motor Drive Circuit. . . . . . . . . . . . . . . . . .
B-13
Figure B-9. Printhead Drive Circuit . . . . . . . . . . . . . . . . . . B-14
Figure B-10. Removing the Main Board Shield Plate . . . . . . . . B-15
Figure B-11. Main Board Assembly. . . . . . . . . . . . . . . . . . B-16
Figure B-12. Removing the Power Supply Board Assembly . . . . B-17
Figure B-13. Removing the Panel Board Assembly . . . . . . . . . B-18
Figure B-14. Printhead Connector Wire Assignments . . . . . . . B-22
Figure B-15. LQ-570+/1070+ Connection Diagram . . . . . . . . . B-23
Figure B-16. Cl07 MAIN Board Component Layout . . . . . . . . B-29
Figure B-17. C107 MAIN Board Circuit Diagram . . . . . . . . . . B-31
Epson LQ-570+/1070+
B-i
Summary of Contents for LG1-1070
Page 1: ...EPSON TERMINAL PRINTER LG1 570 lo7cJ L 4000566 REV B ...
Page 111: ...REV A Figure 6 2 LQ 570 Lubrication Points 6 3 ...
Page 112: ...REV B 6 4 ...
Page 125: ...REV B C3 11 C9 I 1 Figure A 10 BOARD ASSY POWER SUPPLY C062 PSB BOARD Component Layout A 1 3 ...
Page 127: ...REV B Zluo Zr Vlr alr Figure A 1 2 BOARD ASSY PANEL C062 PNL BOARD Component Layout A 1 5 ...
Page 128: ...Figure A 1 3 LQ 570 Exploded Diagram A 1 6 ...
Page 129: ...REV B A 1 9 ...
Page 133: ... I C 71 I Ila u 4 l t mm 151 m Figure A 1 8 LQ 107O Case Outline Drawing A 23 ...
Page 135: ...EPSON Printed in Japan 91 09 5 G ...
Page 137: ...LQ 570 1070 ActionPrinter 5000 5500 24 PIN DOT MATRIX PRINTERS TM LQ57AP5 ...
Page 138: ...L Q 5 7 0 1 0 7 0 SERVICE MANUAL EPSON Printed on Recycled Paper ...
Page 141: ......
Page 233: ...REV A No Replace printhead and PH cable Yes 5 Perform final t e s t 5 7 ...
Page 249: ...REV A Figure 6 2 LQ 570 Lubrication Points 6 3 ...
Page 250: ...REV B Figure 6 3 LQ 1 070 Lubrication Points 6 4 ...
Page 257: ... 5 3 R L ...
Page 261: ... I L N CNl L I r I 1 TT 1 C062 PSE Board 2002850 ...
Page 262: ...Pb CNl C062 PSE Board 2002850 ...
Page 263: ...CN1 RXSO PIUSE d I CO62 PNL Board 1 Excluding Japan ...
Page 267: ... C O 6 2 P N L QW CM YXT 2 DIP 5 1 s A S S Y 2 0 0 2 8 5 2 0 0 J3 DI I ...
Page 268: ... 2 ...
Page 269: ...REV B Figure A 14 LQ 1070 Exploded Diagram A 17 ...
Page 270: ...REV B x Figure A 15 Model 5E10 Exploded Diagram A 18 ...
Page 271: ...REV B Figure A 16 Model 5E60 Exploded Diagram A 19 ...
Page 274: ...REV A A 5 CASE OUTLINE DRAWING 3 6 8 m m Figure A 17 LQ 570 Case Outline Drawing A 22 ...
Page 275: ...REV B 151 I Figure A 18 LQ 1070 Case Outline Drawing A 23 ...
Page 306: ...Appendix B Figure B 16 Cl07 iMX lN Board Component Layout Epson LQ 570 1 070 B 29 ...