Epson AcuLaser C9200N Service Manual page 42

EPSON AcuLaser C9200N
2.2.4.3 Operation
PU LIFE CONTROL
Each PU has IC chip that detects a new PU, keeps track of the service life of
the PU and installation.
New PU detection
New PU is detected when the Main Power Switch is turned ON and the
Front Door is closed.
When a new PU is detected, a TCR adjustment sequence is carried out.
Operation when a new PU is detected
TCR
Transfer Belt
automatic
is retracted
adjustment
Operation when a new PU is not detected
Transfer
Transfer Belt
Belt is
cleaning
retracted
Figure 2-13. Detection of new PU
OPERATING PRINCIPLES
1st image transfer/
Transfer Belt Image
auto transfer
cleaning voltage control stabilization
adjustment
1st image transfer/
Image
auto transfer
stabilization
voltage control
adjustment
4036ma2133c0
4038T2C009AA
Operating Principle of Main Unit Mechanism
When life is reached
PU Life is detected by the PU Life counter value.
When the PU Life counter value is reached to the near life value, the
warning message "Photocon xxxx Needed Soon" is displayed.
When the PU Life counter value is reached to the life value, the
warning message "Replace Photocon xxxx" is displayed.
Revision D
42
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