EPSON EPL-C8000
Rev. B
Chapter 2
OPERATING PRINCIPLES
2-64
2.7.8.3 Discharging
Discharging is to neutralize/remove the charge on paper after 2nd
transfer. It is done by applying high voltage from the HVPS to the
Detach Saw in the “2nd BTR Assembly.
2.7.8.4 Belt Cleaning
The belt surface must be clean for an image to be formed. The belt
surface is cleaned by the Belt Cleaner Assembly. The Belt Cleaner
Assembly needs to advance to the belt surface to clean it. The Belt
Cleaner Assembly Advance/Retract is controlled by the Cleaner Cam
Solenoid.
NOTE: To advance the Belt Cleaner Assembly, the system continuously
turns on the Cleaner Cam Solenoid. To retract the Belt Cleaner
Assembly, the system continuously turns off the Cleaner Cam
Solenoid. (The mode is changed by the P/H Motor Assembly
rotation.)
NOTE: If there is not sufficient time from when the Cleaner Cam
Solenoid is turned on from its off state—because there is not
enough time between the bottom edge of the previous image
and the top edge of the next image (for example, in a continuous
printing in the standard speed mode or B/W mode)—the Cleaner
Cam Solenoid stays ON and the Belt Cleaner Assembly
continue to be in the advanced position.
NOTE: The time required for the Belt Cleaner Assembly advance
operation is 1.0 seconds (standard speed mode) and 2.1
seconds (half-speed mode) since the Belt Cleaner Assembly
receives the Cleaner Cam Solenoid ON signal. The time
required for the Belt Cleaner Assembly retract operation is 0.9
seconds (standard speed mode) and 1.8 seconds (half-speed
mode) since the Belt Cleaner receives the Cleaner Cam
Solenoid OFF signal.
Toner (excess toner) may be on the belt surface:
n
Residual toner from the 2nd transfer.
n
Residual toner from the Cin50% patch and BIAS development
bands.
n
Untransferred toner on the belt because of a paper jam.
1. Belt Cleaning types
There are three types of belt cleaning
(a) Normal cleaning
The Belt is cleaned during a normal print operation. The
maximum printable area (18 inches in the process direction) is
cleaned.
(b) Irregular cleaning
An irregular cleaning is done when the Warm-up mode is started
(except recovering from an image generation error) after a
Cin50% patch or BIAS development bands have been
generated. One circumference of the belt is cleaned.
(c) Error cleaning
When the system is recovering from an image generation error,
toner may be on the belt; the belt is cleaned when the Warm-up
mode is started. One circumference of the belt is cleaned.
Содержание ColorPage EPL-C8000
Страница 1: ...EPSONColorPageEPL C8000 Color Laser Printer 4009762 SERVICE MANUAL ...
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Страница 15: ...C H A P T E R 1 PRODUCTDESCRIPTIONS ...
Страница 59: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 80: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 19 2 3 5 Gear Layout Figure 2 23 Gear Layout ...
Страница 88: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 27 Figure 2 29 Paper Transportation ...
Страница 91: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 30 Figure 2 31 Xerographics II ...
Страница 93: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 32 Figure 2 32 Development ...
Страница 97: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 36 Figure 2 35 Fusing I ...
Страница 99: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 38 Figure 2 36 Fusing II ...
Страница 102: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 41 Figure 2 38 Drives ...
Страница 104: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 43 Figure 2 39 Electrical ...
Страница 138: ...EPSON EPL C8000 Rev B Chapter 2 OPERATING PRINCIPLES 2 77 Figure 2 54 C235MAIN Board Circuit Diagrams 2 5 6 ...
Страница 140: ...C H A P T E R 3 DISASSEMBLYANDASSEMBLY ADJUSTMENT ...
Страница 269: ...C H A P T E R 4 DIAGNOSTICS ...
Страница 332: ...C H A P T E R 5 TROUBLESHOOTING ...
Страница 452: ...C H A P T E R 6 MAINTENANCE ...
Страница 471: ... APPENDIX ...
Страница 479: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 7 Figure A 2 PL2 1 Paper Tray I Figure A 3 PL2 2 Paper Tray II ...
Страница 480: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 8 Figure A 4 PL3 1 Paper Feeder Figure A 5 PL4 1 Multi Sheet Insert I ...
Страница 483: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 11 Figure A 10 PL6 1 Xerographics Figure A 11 PL7 1 Development I ...
Страница 484: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 12 Figure A 12 PL7 2 Development II Figure A 13 PL8 1 IBT I ...
Страница 485: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 13 Figure A 14 PL8 2 IBT II Figure A 15 PL8 3 IBT III ...
Страница 486: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 14 Figure A 16 PL8 4 IBT IV Figure A 17 PL9 1 Fusing I ...
Страница 487: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 15 Figure A 18 PL9 2 Fusing II Figure A 19 PL9 3 Fusing III ...
Страница 488: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 16 Figure A 20 PL9 4 Fusing IV Figure A 21 PL10 1 Paper Exit I ...
Страница 489: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 17 Figure A 22 PL10 2 Paper Exit II Figure A 23 PL11 1 Drive ...
Страница 490: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 18 Figure A 24 PL12 1 Frame Figure A 25 PL 13 1 Electrical I ...
Страница 491: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 19 Figure A 26 PL13 2 Electrical II Figure A 27 PL14 1 Controller ...
Страница 493: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 21 Figure A 29 P J Location 2 Figure A 30 P J Location 3 ...
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Страница 501: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 29 Figure 1 36 Master Wiring Diagram ...
Страница 506: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 34 Figure 1 37 Wiring Diagram 1 ...
Страница 508: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 36 Figure 1 38 Wiring Diagram 2 ...
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Страница 531: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 59 A 4 Component Layout Figure 1 50 C235MAIN 1 ...
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Страница 544: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 72 Figure A 54 PL22 1 Feeder 3 Figure A 55 PL22 2 Feeder 4 ...
Страница 545: ...EPSON EPL C8000 Rev B Chapter A APPENDIX A 73 A 6 5 Wiring Diagrams Figure 1 56 Master Wiring Diagram ...