Ricoh Pro 8300S - LCT1: Multi Bypass Tray Cooling Fan Error; LCT1: Unit Configuration Error (Bridge Unit Connection Error); Sc780-51; Sc780-60

1.SC Codes
588
Solution
In addition to checking for sensor/actuator defect by eye, also execute Input/Output Check as
necessary.
1. Reconnect the connector.
2. Reconnect the LCT power cord.
3. Make the LCT1 DIP switch settings again.
4. Replace the interface harness on LCT1.
5. Replace the PCB on LCT1.
6. Replace the PSU on LCT1.
SC780-51
Error Name
LCT1: Unit Configuration Error (Bridge Unit Connection Error) (Vacuum Feed LCIT)
Pattern
D
Error Condition
The bridge unit is connected to LCT1, but LCT2 or the A3 LCT is not connected.
Major Cause
 Power of downstream unit is not turned on.
 The bridge unit is connected to LCT1 in single LCT configuration.
 Interface harness on LCT2 disconnected
 Power cord of LCT2 disconnected
 PSU on LCT2 defective
Solution
In addition to checking for sensor/actuator defect by eye, also execute Input/Output Check as
necessary.
1. Remove the bridge unit from the LCT that is farthest from the main machine.
2. Reconnect the interface harness connector of the LCT that is farthest from the main machine.
3. Reconnect the power cord of the LCT that is farthest from the main machine.
4. Replace the interface harness.
5. Replace the PSU-BOX on the LCT that is farthest from the main machine.
SC780-60
Error Name
LCT1: Multi Bypass Tray Cooling Fan Error