Brother HL HL-1060, Service Manual

Page: 87 / 105

CHAPTER IV -23
M-3 Main motor unrotated
Possible cause Step Check Result Remedy
Failure of
connector 1 Is the connection of connector
P12 on the driver PCB correct? No Reconnect the connector.
Main motor (M1) 2 Disconnect connector P12 from
the driver PCB. Measure the
resistance between the
connector pins of the main
motor by using a circuit tester.
Do the measured resistances
satisfy the prescribed values in
the table below?
P12-1 and P12-3
P12-4 and P12-6 Approx. 9
Approx. 9
No Replace the Main motor.
Driver PCB 3 is the problem solved by
replacing the driver PCB? Yes Replace the driver PCB.
M-4 No paper supplied
Possible cause Step Check Result Remedy
Connection
failure 1 Is the contact of connector P11
on the driver PCB good? No Reconnect the connector.
Driver PCB
circuit 2 Set paper on the manual paper
slot and make the test print by
pressing the switch on the
control panel. No Replace the driver PCB.
Paper pick-up
clutch solenoid Does the voltage between pins
2 (SOLENOID) and 1 (24V) of
the P11 connector on the driver
PCB change from approx. 24V
DC to 0V within the specified
time? Yes Replace the paper pick-up
solenoid.
MP tray unit
failure 3 Is the surface of the separation
pad or the pick up roller worn
out or stained? Yes Clean the surface or replace.
Main PCB 4 Is the problem solved by
replacing the main PCB? Yes Replace the main PCB.
Relay PCB 5 Is the problem solved by
replacing the relay PCB? Yes Replace the relay PCB.