Xerox PHASER 7500 Service Manual

2-30 Phaser 7500 Printer Service Manual
Theory of Operation
Electric Charge (Drum)
Imaging Unit (PL8.1.4)
The Drum unit forms electrostatic latent images and toner images. One is for each
color - Yellow, Magenta, Cyan, and Black.
Other than the Drum itself, it is made up of the following main components.
• BCR - Charges the Drum.
• Cleaning Blade - Cleans any toner remaining on the Drum after the transfer
of toner image onto the paper.
• CRUM - This is a non-volatile memory that stores the machine data.
Erase Lamp Unit (PL8.1.5)
The Erase Lamp Unit photoelectrically discharges the Drum surface after the toner
image has been transferred onto the Transfer Belt. One is allocated to each color -
Yellow, Magenta, Cyan, and Black.
s7500-367
Cleaning Blade
BCR
CRUM
Erase Lamp Unit
Drum

Xerox PHASER 7500 Specifications

General

Brand	Xerox
Model	PHASER 7500
Category	Printer
Language	English