Ricoh Pro 8310 - Downstream Device Communication Error (Cover Interposer Tray); Press Stopper Motor Error; Sc735-13; Sc740-01

1.SC Codes
301
SC735-13
Error Name
Press Stopper Motor Error
Pattern
B
Error Condition
 When moving to the home position, home position was not detected within the specified time. (The
first time, it is reported as jam. An SC is issued the second time this occurs.)
 When moving from the home position, home position was still detected after the specified time.
(The first time, it is reported as jam. An SC is issued the second time this occurs.)
Major Cause
 Power of downstream unit is not turned on.
 Motor is defective.
 Connector is disconnected.
 There is overload.
 Encoder is defective.
Solution
1. Check all the connectors between the motor and the main board are completely connected. (not
disconnected or half-inserted)
Reconnect the connector if it is not connected correctly.
2. Check if the harness between the motor and the main board is damaged or exposed.
If so, replace the harness.
3. Check and replace the press stopper HP sensor. (Input Check: SP6-650-010)
4. Check if the motor is overloaded, by rotating it by hand.
If so, replace the motor.
5. Check if there are any traces of short circuit on the main board. if so, replace the main board.
SC740-01
Error Name
Downstream Device Communication Error (Cover Interposer Tray)
Pattern
D