Ricoh Pro 8300S - Multi Bypass Tray Lift Timeout Error; Sc509-02

1.SC Codes
143
SC509-02
Error Name
Multi Bypass 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. Set (slide) the tray again. Turn the main power OFF and then ON.
3. Check the connectors of the harnesses related to excessive lifting of bottom plate (lift motor, upper
limit sensor, relay harness).
Reconnect the connectors. Turn the main power OFF and then ON.
4. Check the electrical components related to excessive lifting of bottom plate (lift motor, upper limit
sensor).
If they are defective, replace the components. Turn the main power OFF and then ON.
5. Check the mechanical components related to excessive lifting of bottom plate (bottom plate /
interference of the paper height sensor and feeler)
If they are defective, replace the components. Turn the main power OFF and then ON.
6. Check the harnesses of the multi bypass tray unit (lift motor, upper limit sensor, relay harness).
If the harnesses are defective, replace the harnesses. Turn the main power OFF and then ON.
7. Replace the multi bypass tray PCB. Turn the main power OFF and then ON.
8. Replace the A3 LCT PCB. Turn the main power OFF and then ON.