VI-14
M -10 "54 MOTOR MALF" is displayed (The main motor rotation disabled )
Possible cause Step Check Result Remedy
Low-voltage
power supply
PCB
LV harness
Main PCB
1 Is the voltage of P7-1 in the main PCB
connector +24V?
No Replace the main PCB
assy low-voltage power
supply PCB assy, or the
LV harness.
DC motor
harness
2 Does the voltage of P7-4 in the main PCB
connector drop from 5V to 0V after dropping
No Replace the main PCB
assy.
DC motor assy the voltage of P7-3 from 5V to 0V? Yes Replace the DC motor
harness or the DC motor
assy.
M-11 No paper pick-up from cassette (or MP tray)
Possible cause Step Check Result Remedy
Mis-operation 1 Is the paper feed mode set correctly? No Set paper feed mode
correctly.
Main PCB 2 Does the voltage of P3-20 (or 19) in the main
PCB connector rise from 0V to 5V and is a
pulses having about 11ms period generated at
P3-6, 7, 8 ,9 pin?
No Replace the main PCB
assy.
Feed flat cable 3 Does the voltage of P5-20 (or 19) in the paper
feeder PCB. Connector rise from 0V to 5V and
is the pulses having about 11ms period
generated at P3-6, 7, 8 ,9 pin?
No Replace the feed flat
cable.
Paper feeder
PCB
4 Does the voltage of P3-1 (or P4-1) in the paper
feeder PCB connector drop from 24V to 0V
and is the chopping pulses generated at P1-1,
2, 5 ,6 pin?
No Replace the Paper
feed/size-SW PCB assy.
Pick-up(or MP
Pick) solenoid
5 Does the pick-up (or MP Pick) solenoid
operate?
No Replace the pick-up (or
MP Pick) solenoid.
Paper feed
motor
6 Does the pick-up motor rotate? No Replace the paper feed
motor assy.