Ricoh MP C2504 Field Service Manual page 814

SC No. Level
SC492-00 C
Error Name/Error Condition/Major Cause/Solution
High voltage power source: image transfer/paper transfer: output error
SC detection signal (transfer) is L (abnormal) for 200 ms consecutively
during high voltage (transfer) output.
H/W error
• Output power connector setting fault
• Controller connector setting fault
• Output high voltage Harness disconnection
• Controller harness disconnection, short-circuit
• Transfer unit setting fault
• Control board_ IOB error (related signal error)
• HVP_TTS error
Load error
• Increase in paper transfer roller impedance (low temperature
environment/impedance rise/impedance rise due to dirt)
• Operation fault of paper transfer contact mechanism
• Increase in image transfer belt impedance
• Opening in load power supply path
• Reset or replacement the harness of high voltage power supply feed
path
• Reset or replace the harness between IOB-HVP_TTS
• Reset or replace the transfer unit
• Check operation of the contact mechanism
• Replace the HVP_TTS
• Replace the Imaging IOB.
Service Call 441-498
805