Ricoh Pro 8320 - LCT1: Bridge Unit Cooling Fan Error (Vacuum Feed LCIT); LCT1: PSU Cooling Fan 2 Error (Vacuum Feed LCIT); Sc780-06; Sc780-07

1.SC Codes
582
5. Replace the PSU-BOX.
SC780-06
Error Name
LCT1: PSU Cooling Fan 2 Error (Vacuum Feed LCIT)
Pattern
B
Error Condition
Cooling fan alarm “H (error)” is detected when the PSU cooling fan 2 on the LCT1 is ON.
Major Cause
 Power of downstream unit is not turned on.
 PSU cooling fan 2 on the LCT1 defective / connector disconnected
 Harness damaged
 PCB defective
 PSU1 defective
Solution
In addition to checking for sensor/actuator defect by eye, also execute Input/Output Check as
necessary.
1. Reconnect the connector.
2. Replace the PSU cooling fan 2 on the LCT1.
3. Replace the harness.
4. Replace the PCB.
5. Replace the PSU-BOX.
SC780-07
Error Name
LCT1: Bridge Unit Cooling Fan Error (Vacuum Feed LCIT)
Pattern
B
Error Condition
Cooling fan alarm “H (error)” is detected when the cooling fan on the bridge unit is ON.
Major Cause
 Power of downstream unit is not turned on.