Ricoh SP 8400DN Field Service Manual page 1264

6.Troubleshooting
SC No. Type
SC503- B 3rd Tray Lift Error (M494)
11
The machine detects the lift error of the tray lift motor for the PFU (M494) 3 times
consecutively when the 3rd tray is lifted at the machine's initialization.
(The message of resetting the tray is displayed when the machine detects the error
consecutively 2 times or less.)
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SC503- B 3rd Tray Lowering Error (M494)
12
The machine detects the lowering error of the tray lift motor for the PFU (M494) 3 times
consecutively when the 3rd tray is lowered at the machine's initialization.
(The message of resetting the tray is displayed when the machine detects the error 2 times
consecutively.)
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526
Error Name/Error Condition/Major Cause/Solution
Tray lift motor connector disconnected
Upper limit sensor harness disconnected or broken
Controller board defective
Foreign matter, such as paper scrap, is caught between the paper feed tray and the tray
lift motor
Paper set fault
Reset the paper.
Remove the foreign matter.
Replace the tray lift motor.
Reset the connector.
Replace the harness.
Replace the upper limit sensor.
Replace the controller board for the optional PFU (M494).
Replace the tray.
Replace the paper feed roller.
Replace the pick-up arm.
Tray lift motor connector disconnected
Upper limit sensor harness disconnected or broken
Controller board defective
Paper overload
Foreign matter, such as paper scrap, is caught between the paper feed tray and the tray
lift motor
Paper set fault
Reset the paper.
Remove the foreign matter.
Replace the tray lift motor.
Reset the connector.