Xerox Phaser 3155

2-8 Phaser 3140/3155/3160 Printer Service Manual
Theory of Operation
Print Cartridge
The Print Cartridge is an integral unit containing the OPC unit and toner unit. The
OPC unit consists of the OPC drum and charging roller. The toner unit consists of
toner, supply roller, developing roller, and cleaning blade.
• Developing method: Non-magnetic 1 element contacting method
• Toner: non-magnetic 1 element shatter type toner
• Toner Life: 1,000 pages/2,500 pages (ISO 19752 Pattern/A4 Standard)
• Toner Residual Sensor: Dot count with CRUM(CRU Monitor)
• OPC cleaning blade
• Management of waste toner: Collects toner using the cleaning blade.
• OPC drum protecting shutter: No
• Toner CRUM reader: Identifies whether toner is Xerox branded toner or
whether a non-Xerox Print Cartridge is installed.
s3160-076
Cleaning Roller
Cleaning Blade
Max. -350V
Max. -550V
Max. +5KV
Max -1.4KV
Zener Diode
-100V
Charging Roller
Laser
V
0
: -720V
V
L
: -150V
Doctor Blade
Developing Roller
Supply Roller
Transfer Roller
OPC Drum
s3160-088
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