Xerox Phaser 6120 Service Manual page 247

Cleaning Blade Pressure/Retraction Mechanism
During color printing, an image is formed on the Transfer Belt for each color of toner. The
Cleaning Blade is therefore provided with a pressure/retraction mechanism. that moves the
cleaning blade and applies pressure at the correct time.
In monochrome printing, no retraction sequence is carried out.
The Cleaning Blade is normally in contact with the Transfer Belt.
Pressure/Retraction Operation
The Cleaning Blade pressure/retraction operations are performed by the Main Motor
(M1), Pressure/Retraction Solenoid /Cleaning Blade (SL3), pressure cam, lever, and
Retraction Position Sensor /Cleaning Blade (PC6).
When the Pressure/Retraction Solenoid /Cleaning Blade (SL3) is energized, drive from the
Main Motor (M1) is transmitted to the pressure cam.
.
Pressure Cam
Phaser® 6120 Color Laser Printer Service Manual
Pressure/Retraction Solenoid /Cleaning Blade
Main Motor
7-27
Print Engine Theory of Operation
Lever
Retraction
Position Sensor
/Cleaning Blade
Belt Cleaner Assy
4139to2075e0