Epson AcuLaser C9200N Service Manual page 58

EPSON AcuLaser C9200N
Operation timing
Start Key ON
Fusing Drive Motor (M4)
1st Image Transfer Pressure/Retraction
Clutch (CL3)
1st Image Transfer Retraction Position
Sensor (PC6)
OPERATING PRINCIPLES
Paper Moves Past 2nd Transfer Roller
4038T2C136AA
Operating Principle of Main Unit Mechanism
Pressure position changing mechanism
To extend the service life of the PC Drum/Y, M, C, the pressure
position of the 1st Image Transfer Roller is changed between the
monochrome mode and the color mode. In the monochrome mode, the
1st Image Transfer Roller/Y, M, C is left in the retracted position and
the PC Drum/Y, M, C is stopped.
Color mode:
• The pressure position of the Image Transfer Roller is where the PC Drum is in
contact with the Transfer Belt for all four colors of toner.
• In order to transfer the original without missing any part, a Retraction Roller
is mounted at the 1st Image Transfer Roller/Y so the 1st Image Transfer
Roller/Y will properly contact to the PC Drum/Y.
Monochrome mode:
The pressure position of the Image Transfer Roller/Y, M, C is where
the PC Drum/Y, M, C leaves the Transfer Belt. While that of the Image
Transfer Roller/K is where the PC Drum/K is in contact with the
Transfer Belt. This allows the PC Drum/Y, M, C to remain stationary
in this mode.
Transfer Belt
PC Drum
Figure 2-36. Monochrome Mode
Retraction Roller
Figure 2-37. Color Mode
Revision D
1st Image Transfer Roller
4038T2C162AA
4038T2C163AA
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