WorkCentre 3210/3220 Multifunction Printer Service Manual
2-23
Theory of Operation
Transfer High Voltage (THV+)
The (+) Transfer High Voltage is supplied to the Transfer Roller for transferring
toner onto the OPC Drum to the paper.
■
Input Voltage: 24 VDC
±
15%
■
Output Voltage: MAX +5.0KV
±
5% (duty variable)
■
Line Regulation: under
±
3% (fluctuation input 21.6 V~27.6 V)
■
Output Voltage Rising Time: 50 ms Max
■
Output Voltage Falling Time: 100 ms Max
■
Fluctuating Transfer Voltage with Environmental Various: 0 V~5 KV
■
Environment Recognition Control Method: The THV-PWM ACTIVE is
transfer active signal. It detects the resistance by recognizing the voltage
value, F/B, while permits the environmental recognition voltage.
■
Output Voltage Control Method: Transfer Output Voltage is outputted and
controlled by changing duty cycle of THV/PWM signal.
Charge Voltage (MHV)
High voltage is supplied to the OPC drum through the charging roller while
charging the skin of the OPC drum.
■
Input voltage: 24 VDC
±
15%
■
Output voltage: -1.2 KV ~ -1.8 VDC
±
3%
■
Output voltage rising time: 50 ms Max
■
Output voltage failing time: 50 ms Max
■
Output control signal (MHV-PWM): CPU is HV output when PWM is Low.
Cleaning Voltage (THV-)
■
-1.2 KV
±
15%
■
The (+) transfer voltage is not outputted because the THV PWM is
controlled with high.
■
The (-) transfer voltage is outputted because the THV-Enable Signal is
controlled with low.
■
The output fluctuation range is large because there is no feedback control
and connection resistor.
Содержание 3210 - workcentre b/w laser
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Страница 56: ...1 26 WorkCentre 3210 3220 Multifunction Printer Service Manual General Information ...
Страница 92: ...2 36 WorkCentre 3210 3220 Multifunction Printer Service Manual Theory of Operation ...
Страница 200: ...5 42 WorkCentre 3210 3220 Multifunction Printer Service Manual Print Quality Troubleshooting ...
Страница 201: ...6 Chapter Adjustments and Calibrations In this chapter Adjustments ...
Страница 204: ...6 4 WorkCentre 3210 3220 Multifunction Printer Service Manual Adjustments and Calibrations ...
Страница 205: ...7 Chapter Cleaning and Maintenance In this chapter Service Maintenance Procedure Cleaning Maintenance ...
Страница 214: ...7 10 WorkCentre 3210 3220 Multifunction Printer Service Manual Cleaning and Maintenance ...
Страница 342: ...8 128 WorkCentre 3210 3220 Multifunction Printer Service Manual Service Parts Disassembly ...
Страница 380: ...9 38 WorkCentre 3210 3220 Multifunction Printer Service Manual Parts List ...
Страница 381: ...10 Chapter Wiring Component Locator Diagrams Plug Jack Locators System Connections Wiring Diagrams ...
Страница 401: ...A Appendix Reference Contents WorkCentre 3210 3220 Menu Map Tech Mode Menu Map Acronyms and Abbreviations ...
Страница 414: ...1 8 WorkCentre 3210 3220 Multifunction Printer Service Manual Index ...
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