Sc Codes Group 6: Device Communication - Ricoh B132 Service Manual

SERVICE CALL CONDITIONS

SC codes Group 6: Device Communication

SC620 D ARDF communication error
A BREAK signal occurs after the
machine detects the ARDF, or a
communication timeout occurs.
SC621 D Mailbox-to-Finisher communication error
Communication between the
mailbox and finisher is
interrupted. An ACK/NCK signal
was not received within 100 ms
after a data frame is sent and 3
retries failed.
SC622 D LCT communication error
Communication between the
copier and LCT is interrupted.
An ACK/NCK signal was not
received within 100 ms after a
data frame is sent and 3 retries
failed.
SC624 D Mailbox-to-copier communication error
Communication between the
mailbox and copier is
interrupted. An ACK/NCK signal
was not received within 100 ms
after a data frame is sent and 3
retries failed.
B132/B200
• ARDF disconnected
• IPU board harness disconnected,
defective
• IPU board defective
• Spurious noise from the power supply
line
• ARDF control board defective
• Connection cable between mailbox and
finisher disconnected, defective
• Finisher main board defective
• BCU defective
• PSU defective
• Connection cable between the LCT and
copier is disconnected, defective
• LCT main board defective
• BCU defective
• PSU defective
• Mailbox cable disconnected, defective
• Mailbox main board defective
• BCU defective
• PSU defective
4-54 SM