Ricoh Pro 8300S - 1 St Blower Fan Error (Cover Interposer Tray); Sc740-13

1.SC Codes
307
4. Check if the spring of the pick-up solenoid is released or defective. (pick-up roller lowered)
5. Check that the 1st upper limit sensor connector is connected correctly.
6. Replace the 1st upper limit sensor.
7. Check that 1st upper limit sensor harness with the relay connectors is connected correctly.
8. Replace the 1st upper limit sensor harness.
9. Check if an appropriate amount of paper is loaded.
10. Check that the pick-up solenoid harness with the relay connectors is connected correctly.
11. Replace the pick-up solenoid harness.
12. Replace the 1st upper limit sensor.
13. Replace the main controller board.
SC740-13
Error Name
1st Blower Fan Error (Cover Interposer Tray)
Pattern
B
Error Condition
An error is detected from the 1st blower fan of the cover interposer tray.
Major Cause
 Power of downstream unit is not turned on.
 1st blower fan is defective / connector is disconnected.
 Harness is damaged.
 Main controller board is defective.
Solution
For checking the sensor or actuator error, not only visually confirmation but also Input/Output Check are
needed.
1. Check if the relay connector of the I/F cable between the main controller board and the 1st blower
fan is connected correctly.
2. Check if the 1st blower fan connector is connected correctly.
3. Replace the 1st blower fan harness.
4. If the 1st blower fan is defective or damaged, replace the fan.
5. Replace the main controller board.