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SC CODES
SC
Item
Detection Conditions
No.
SC327 FGATE2 error - Timing & Condition -
When two pages are to be
written on the transfer belt at
the same time, the main
control board does not receive
the 2nd FGATE signal from
the LD main control board
during 3 revolutions of the
transfer belt.
SC360 Development
- Timing -
bias error
When the development DC
bias is on during printing or
process control
- Condition -
The feedback voltage is 4.8V
or higher, or the PWM value
becomes 80% or higher for
500 ms continuously.
Related
Possible Causes
SCs
Same as SC326
• Poor connection of
connectors
• Dirty terminals
• Defective high
voltage supply (B)
• Defective I/O
control board
• Defective main
control board
10
Troubleshooting Procedure
Same as SC326.
1. Clean the development roller shaft (terminal).
2. Clean the bias terminal if it is dirty.
3. Poor connection: Correct the leaf spring shape.
4. Replace the bias terminal if it does not move smoothly.
5. Check the connectors of high voltage supply cable and
trigger lines are properly connected on the high voltage
supply board (B), I/O control board, and main control
board.
6. Replace the high voltage supply board (B)
7. Replace the I/O control board.
8. Replace the main control board.
- Signals to Check -
• Feedback signal: CN203-A12, TP228, or CN214-A5 on
I/O control board / CN302-A5 or TP167 on main control
board
• PWM: CN203-A13 or TP234 on I/O control board
24 February 1999
Type
D
D
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