Ricoh MP C6502SP Field Service Manual page 1094

5. Troubleshooting
SC No.
SC No.
SC450-11
SC No.
SC452-00
1092
Level Error Name/Error Condition/Major Cause/Solution
An interrupt checks the status of the power pack every 10 ms. This SC is
issued if a problem exists with 50 consecutive samplings (500 ms).
Details:
SC issued when the ITB power pack output current is leaking.
The IOB checks for SC signals as described above. Distinguished
between DC and AC.
• ITB power pack output current is leaking.
Remove the high voltage cable from the output terminal of the ITB power
pack and check the following items.
• PWM signal check
If signal is fixed during image transfer, replace the cable or the IOB.
• ITB power pack output check
If output is fixed during image transfer, replace the power pack.
If output is normal during image transfer, replace the high voltage
cable, ITB or the transfer roller.
Level Error Name/Error Condition/Major Cause/Solution
ITB Power Pack Error (low output)
The ITB roller resistance level was "R-3" (detected voltage was lower than
0.1kV).
• ITB power pack defective
D
• Problem with input harness to the ITB power pack (loose connection,
harness broken, or connector disconnected).
• Fix or replace the ITB power pack.
• Check the input harness and connector of the ITB power pack.
Level Error Name/Error Condition/Major Cause/Solution
D PTR Lift Error