Ricoh Pro 8300S - AC Power Pack (D) (Voltage Leak); Paper Transfer Roller Unit Error Detection (Low Output); Sc450-11; Sc460-01

1.SC Codes
74
SC450-11
Error Name
Paper Transfer Roller Unit Error Detection (Low Output)
Pattern
D
Error Condition
The output from the transfer power pack is abnormal. (not outputted).
Major Cause
 Input harness to the transfer power pack is not properly connected.
 IOB harness is not properly connected.
 Power is not properly supplied to the paper transfer bias roller.
 Input harness to the transfer power pack is defective
 IOB harness is defective.
 Transfer power pack board is defective.
 IOB is defective.
Solution
1. Check the harness between the transfer power pack and the paper transfer bias roller (connector
loose or disconnected)
2. Check the harness of the IOB (connector loose or disconnected).
3. Check the power supply plate of the paper transfer bias roller (screw loose or deformed).
If necessary, replace the plate.
4. Replace the harness between the transfer power pack and the paper transfer bias roller.
5. Replace the IOB harness.
6. Replace the transfer power pack board.
7. Replace the IOB.
SC460-01
Error Name
AC Power Pack (D) (Voltage Leak)
Pattern
D
Error Condition
The output from the AC Power Pack (D) is abnormal (discharge current is leaking).