Sc506-01; A4 Lct Tray 3 Upper Limit Detection Error - Ricoh Pro 8300S Troubleshooting Manual

1.SC Codes
Solution
In addition to checking for sensor/actuator defect by eye, also execute Input/Output Check as
necessary.
1. Check the connector of the harness.
Reconnect the connector. Turn the main power OFF and then ON.
2. Check if the fan is dirty.
Clean the fan. Turn the main power OFF and then ON.
3. Check the fan.
If it is defective, replace it. Turn the main power OFF and then ON.
4. Check the harness.
If it is defective, replace it. Turn the main power OFF and then ON.
5. Replace the main PCB.

SC506-01

Error Name

A4 LCT Tray 3 Upper Limit Detection Error

Pattern
B
Error Condition
During tray initialization, the upper limit sensor fails to detect before the tray is lifted (the pick-up
solenoid is off) (five times consecutively).
Major Cause
Power of downstream unit is not turned on.

 Pick-up solenoid is defective or not connected properly.
Upper limit sensor is defective or not connected properly.

Harnesses are damaged.

PCB is defective.

Solution
In addition to checking for sensor/actuator defect by eye, also execute Input/Output Check as
necessary.
1. Check the connectors of the harnesses related to upper limit detection (upper limit sensor / pickup
roller solenoid).
Reconnect the connectors. Turn the main power OFF and then ON.
2. Check the electrical components related to upper limit detection (upper limit sensor / pickup roller
solenoid).
120