Xerox Phaser 6125 Service Manual page 83

Phaser 6125/6130 Color Laser Printer Service Manual
Toner Access Door Switch
A switch that detects when the Toner Access Door is open.
GFI Breaker
Opens to shut off the AC power if it detects any voltage or current or leakage
current that exceeds the rating of the AC power supply.
Multi-Protocol Network Card (MPC)
An option that allows the use of multiple network protocols.
Data Flow
The electrical signal flow for the print data from the printer I/P Board is shown
in the following diagram.
Computer
I/P Board
MCU Board
Laser Unit
Imaging Unit
Imaging Unit
Transfer Belt
Fuser
Host (Electric Signal)
Electronic Sub-system Control Board (Electric Signal)
Machine Control Unit (Electric Signal)
Laser Unit (Laser Beams)
Electrostatic Latent On Drum (Invisible Image)
Toner Image On Drum
Toner Image On Paper
Print Image On Paper
Theory of Operation
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