Ricoh B264 Service Manual page 236

SERVICE CALL CONDITIONS
502 B 2nd tray lift malfunction
The paper height 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 paper
height sensor should de-activate within 5 seconds after the paper bottom plate
starts to drop. If it does not deactivate within 5 s four times consecutively, a
message will prompt the user to reset Tray 2. After two attempts to re-set the
paper tray, if this does not solve the problem then this SC is displayed.
• Lift motor abnormal or disconnected
• Height sensor defective or disconnected
• Loose paper or object between the tray and motor
• Pick-up arm malfunction
503 B 3rd tray lift malfunction (optional paper tray unit)
The paper height sensor is not activated after the tray lift motor has been on for 13
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 paper
height sensor should de-activate within 5 seconds after the paper bottom plate
starts to drop. If it does not deactivate within 5 s four times consecutively, the tray
lift motor halts. After two attempts to re-set the paper tray, if this does not solve
the problem, then this SC is displayed and tray control halts.
• Tray lift motor defective or disconnected
• Height sensor defective or disconnected
504 B 4th tray lift malfunction (optional paper tray unit)
The paper height sensor is not activated after the tray lift motor has been on for 13
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 paper
height sensor should de-activate within 5 seconds after the paper bottom plate
starts to drop. If it does not deactivate within 5 s four times consecutively, the tray
lift motor halts. After two attempts to re-set the paper tray, if this does not solve
the problem, then this SC is displayed and tray control halts.
• Tray lift motor defective or disconnected
• Height sensor defective or disconnected
506 B Paper tray unit main motor lock
(optional paper tray)
A main motor lock signal is detected for
more than 50 ms during rotation.
507 B LCT main motor lock
A main motor lock signal is detected for
more than 50 ms during rotation.
B264/B265
• Paper tray unit main motor defective
• Paper tray unit main motor
connection loose
• Too much load on the drive
mechanism
• LCT main motor defective
• Paper tray unit main motor
connection loose
• Too much load on the drive
mechanism
4-8 SM