Ricoh AFICIO MP 6001, Service Manual, Page: 487 / 1351

Service Call Conditions
D062/D063/D065/D066 3-42 SM Appendix
Finisher tray 1 (upper tray lift) motor error
750 B
The upper tray paper height
sensor does not change its status
with the specified time after the
tray raises or lowers. The 1st
detection failure issues a jam
error, and the 2nd failure issues
this SC code.
ƒ
Tray lift motor disconnected,
defective
ƒ
Upper tray paper height sensor
disconnected, defective
ƒ
Finisher main board connection to
motor loose
ƒ
Finisher main board defective
Return roller motor error
753 B
Occurs during the operation of
the lower tray pressure motor.
ƒ
Motor harness disconnected, loose,
defective
ƒ
Motor overloaded
ƒ
Home position sensor harness
disconnected, loose, defective
ƒ
Home position defective
Shift Motor Error: 3K Finisher (B830)
755 D
The shift tray half-turn sensors:
Failed twice to detect the shift tray at the home position at the specified time.
-or-
Failed twice to detect that the shift tray had left the home position.
If the motor is operating
1. Half-turn sensor 1, 2 harnesses loose, broken, defective
2. One of the half-turn sensors is defective
If the motor is not operating:
1. Motor blocked by an obstruction
2. Motor harness loose, broken, defective
3. Motor defective
4. Finisher main board defective