Hvps - Xerox Phaser 7400 Service Manual

HVPS

Located under the Transfer Unit and HVPS Cover, the HVPS supplies high-voltage to
the Transfer Unit and Imaging Units. The HVPS also provides connections for the
Front Door Interlock (CN3) that disables +24V when opened, the Waste Toner
Reservoir Full (CN4) and Detect (CN2) Hall-effect sensors.
HVPS Imaging Outputs
Output Voltage
CH -0.8 to -1.4kV
DB -100 to -450V/250V
SB -300 to -700V
BB Drop from SB Output with Zener
TR 0 to 7kV
Charge Roller
2-58
Ground
Drum
Developer Roller
Purpose
Charge Roller voltage
Developer Roller voltage
Sponge Roller voltage
Cleaning Blade voltage
Transfer Roller voltage (not shown)
Sponge Roller
Phaser 7400 Color Printer Service Manual
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