Ricoh Pro 8300S - A4 LCT Tray 1 Tray Lift Timeout Error; Sc504-02

1.SC Codes
95
If the harnesses are defective, replace the harnesses.
4. Replace the main PCB, and then turn the main power off and on.
SC504-02
Error Name
A4 LCT Tray 1 Tray Lift Timeout Error
Pattern
B
Error Condition
During tray initialization, the upper limit sensor fails to detect after the tray bottom plate was lifted for a
prescribed time.
Major Cause
 Power of downstream unit is not turned on.
 Lift motor 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 if paper is loaded correctly in the tray.
If not, reload correctly.
2. Check the connectors of the harnesses related to excessive lifting of bottom plate (lift motor, upper
limit sensor).
Reconnect the connectors.
3. Check the electrical components related to excessive lifting of bottom plate (lift motor, upper limit
sensor).
If they are defective, replace the components.
4. Check the mechanical components related to excessive lifting of bottom plate (bottom plate /
interference of the paper height sensor and feeler)
5. Check the harnesses (lift motor, upper limit sensor).
If the harnesses are defective, replace the harnesses.
6. Replace the main PCB, and then turn the main power off and on.