Ricoh D009 Service Manual page 383

2nd tray lift malfunction
The tray lift sensor is not activated after the tray lift motor has been on for 10
seconds. If the main power switch is turned on when the paper is already at
the feed height, the paper height position is detected again. At this time, the
tray lift sensor should de-activate within 1.5 sec. after the paper bottom plate
starts to drop. If it does not deactivate within 1.5 sec., a message will prompt
the user to reset Tray 2. After two attempts to re-set the paper tray, if this
502 B
does not solve the problem then this SC is displayed.
An obstruction (jammed paper, paper scraps, etc.) has blocked the
motor drive and caused an overload.
Tray lift sensor connection loose, disconnected, or damaged
Tray lift sensor defective
Tray lift motor connection loose, disconnected, or damaged
Tray lift motor defective
503 3rd tray lift malfunction (optional paper feed unit or LCT)
For the paper feed unit:
SC 503-01 occurs if the lift sensor does not turn on within 10 seconds
after the tray lift motor has turned on.
For the LCT:
SC 503-01 occurs if the lift sensor does not turn on or turn off within 8
seconds after the tray lift motor has turned on to lift or lower the tray.
For the paper feed unit:
-1 B
Defective tray lift motor or connector disconnection
Defective lift sensor or connector disconnection
For the LCT:
Defective stack transport clutch or connector disconnection
Defective tray motor or connector disconnection
Defective end fence home position sensor or connector disconnection
Defective upper limit sensor or connector disconnection
Defective tray lift motor or connector disconnection
SM Appendix 3-15 D009/D011/D012/D013/D091/D092
Service Call Conditions