Xerox Phaser 3300 - Transfer Assembly; Driver Assembly

Phaser 3300MFP Service Manual 2-13
Theory of Operation
Transfer Assembly
The Transfer Assembly consists of the Transfer Roller and gear.
The transfer roller delivers the toner from the OPC drum to the paper.
■ TR Voltage: +1.3 KV ± 5% (based on 200 ΜΩ, in accordance with media
area, Transfer table)
■ -1.20 KV ± 10% (In cleaning)
■ Transfer Efficiency: 85% or more (All environment: preferable media)
■ Voltage System: Voltage PWM Control System
■ Transfer Roller
■ Hardness: 40 °C ± 3% (ASKER-C)
■ Valid length: 224.2 + 0.5/-0 mm
■ OD: ϕ 15.0 ± 0.5 mm
■ SHAFT Material: SUM -24L + Non-electrolysis Ni. Coating
■ Life Span: Print over 70,000 sheets (in 15 ~ 30 °C)
Driver Assembly
Motor
■ Spec: BLDC φ 62 + PM φ 55 Motor (2-2 Bipolar) + PM φ 42 Motor (2-2
Bipolar)
■ Pull-Out Torque:
■ BLDC φ 62: 1500 gf.cm (based on actual value) or more (1342.4 rpm,
1.8 A)
■ PM φ 55: 1490 gf.cm (based on actual value) or more (711 pps, 0.9 A)
■ PM φ 42: 240 gf.cm (based on actual value) or more (1850 pps, 0.6 A)
■ TORQUE MARGIN (Tp/o VTsys): BLDC φ 62 Motor: 1500/1100 gf.cm =
1.36
■ PM φ 55 Motor: 1490/1053 gf.cm = 1.41
■ PM φ 42 Motor: 240/165 gf.cm = 1.45
■ Driving Frequency: BLDC φ 62 Motor: 1342.4 rpm (1006.8 Clock)
■ PM φ 55 Motor: 888.75 rpm (711 pps)
■ PM φ 42 Motor: 1156.25 rpm (1850 pps)
■ It is a power delivery unit by gearing: BLDC φ 62 Motor -> Pickup/Feeder/
Print Cartridge
■ PM φ 55 Motor -> Fuser/Exit
■ PM φ 42 Motor -> Duplex