Printer Controls; Image Processor Function; Print Engine Control - Xerox Phaser 3500 Service Manual

Printer Controls

Image Processor Function

The host computer connects to the Main Board using a bi-directional parallel, Universal Serial
Bus (USB) cable, or via an optional Ethernet Network Card. The Main Board receives image
data from the host computer, converts this to a bitmap image, and then sends the current image
to the Laser Scanner Assembly.

Print Engine Control

The engine control section provides all of the principle operating voltages and control signals
for the following printer operations:
■ Main Drive Motor
■ Fuser Assembly
■ High Voltage Power Supply (HVPS)
■ Laser Scanner Unit (LSU)
■ Sensors
■ Solenoids
Thermistor
■
■ All parts related to the xerographic process
■ Optional Paper Tray 3 and Tray 1
Phaser® 3500 Laser Printer Service Manual
8-9
Theory of Operation