Xerox WORKCENTRE 3210 Service Manual

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.

Xerox WORKCENTRE 3210 Specifications

General

Print Technology	Laser
Functions	Print, Copy, Scan, Fax
Print Speed	Up to 24 ppm
Duplex Printing	Manual
Monthly Duty Cycle	Up to 30, 000 pages
Processor Speed	360 MHz
Memory	128 MB
Standard Paper Capacity	250 sheets
Scanner Type	Flatbed, ADF
Fax Transmission Speed	33.6 Kbps
Connectivity	USB 2.0, Ethernet
Media Sizes Supported	A4, A5, B5, Executive, Folio, Legal, Letter
Scan Resolution	Up to 4800 x 4800 dpi
Maximum Paper Size	8.5 x 14 in (Legal)
Operating System Compatibility	Windows, Mac OS
Print Resolution	600 x 600 dpi