6. MALFUNCTIONS- Page 141

CHAPTER 6  TROUBLESHOOTING

6-19

M-3

Main motor does not rotate

Possible cause

Step

Check

Result

Remedy

Failure of
connector

1

Is the connection of connector
P9 on the engine PCB correct?

No

Reconnect the connector.

Main motor

2

Is the problem solved by
replacing the main motor?

Yes

Replace the main motor.

Engine PCB

3

Is the problem solved by
replacing the engine PCB?

Yes

Replace the engine PCB.

Main PCB

4

Is the problem solved by
replacing the main PCB?

Yes

Replace the main PCB.

M-4

No paper supplied

Possible cause

Step

Check

Result

Remedy

Failure of
connector

1

Is the contact of the  solenoid
connector on the engine PCB
good?

No

Reconnect the connector.

Engine PCB
circuit

2

Set paper in the manual paper
slot and make a test print by
pressing the control panel
button.

Yes

Replace the engine PCB.

Paper pick-up
clutch solenoid

Does the voltage between pins
2 (SOLENOID) and 1 (24V) of
the P13 connector on the
engine PCB change from
approx. 24V DC to 0V within
the specified time?

No

Replace the paper pick-up
solenoid.

Separation pad /
pick-up roller
failure

3

Is the surface of the separation
pad or the pick-up roller dirty or
worn out?

Yes

1)  Clean the surface of the

separation pad or pick-up
roller.

2)  Replace the separation pad

or pick-up roller.

Main PCB

4

Is the problem solved by
replacing the main PCB?

Yes

Replace the main PCB.