CHAPTER 6 TROUBLESHOOTING

M-3

Main motor does not rotate

Possible cause

Step

Check

Result

Remedy

 

 

 

 

 

Failure of

1

Is the connection of connector

No

Reconnect the connector.

connector

 

P9 on the engine PCB correct?

 

 

 

 

 

 

 

Main motor

2

Is the problem solved by

Yes

Replace the main motor.

 

 

replacing the main motor?

 

 

 

 

 

 

 

Engine PCB

3

Is the problem solved by

Yes

Replace the engine PCB.

 

 

replacing the engine PCB?

 

 

 

 

 

 

 

Main PCB

4

Is the problem solved by

Yes

Replace the main PCB.

 

 

replacing the main PCB?

 

 

 

 

 

 

 

M-4

No paper supplied

Possible cause

Step

Check

Result

Remedy

 

 

 

 

 

Failure of

1

Is the contact of the solenoid

No

Reconnect the connector.

connector

 

connector on the engine PCB

 

 

 

 

good?

 

 

 

 

 

 

 

Engine PCB

2

Set paper in the manual paper

Yes

Replace the engine PCB.

circuit

 

slot and make a test print by

 

 

 

 

pressing the control panel

 

 

 

 

button.

 

 

 

 

 

 

 

Paper pick-up

 

Does the voltage between pins

No

Replace the paper pick-up

clutch solenoid

 

2 (SOLENOID) and 1 (24V) of

 

solenoid.

 

 

the P13 connector on the

 

 

 

 

engine PCB change from

 

 

 

 

approx. 24V DC to 0V within

 

 

 

 

the specified time?

 

 

 

 

 

 

 

Separation pad /

3

Is the surface of the separation

Yes

1) Clean the surface of the

pick-up roller

 

pad or the pick-up roller dirty or

 

separation pad or pick-up

failure

 

worn out?

 

roller.

 

 

 

 

2) Replace the separation pad

 

 

 

 

or pick-up roller.

 

 

 

 

 

Main PCB

4

Is the problem solved by

Yes

Replace the main PCB.

 

 

replacing the main PCB?

 

 

 

 

 

 

 

6-19

Page 141
Image 141
Brother HL-1030, 1240, 1250 service manual Main motor does not rotate, No paper supplied