Brother HL-2030 Service Manual page 188

CHAPTER 7 TROUBLESHOOTING
M-10 Pickup function of paper tray does not work.
Possible cause
Link lever does
not move
smoothly.
Pickup roller
holder ASSY
does not move
smoothly.
Main motor
failure
Pressure plate
drive cam failure
M-11 The new toner is not sensed.
Possible cause
The toner
cartridge is not
set to the main
body correctly.
New toner
detection switch
failure
Main PCB
failure
M-12 Maximum speed is slow.
Possible cause
Two or more
sheets of the
paper in the tray
are pulled to
feed.
Foreign body
attached to the
tail edge
actuator
Tail edge
actuator failure
Tail edge sensor
malfunction
Step Check
1 Does the link lever work?
Isn't the link lever bent?
2 Does the pickup roller holder
ASSY move up and down?
3 Does the main motor work?
4 Does the pressure plate drive
cam rotate?
Step Check
1 The toner cartridge is not
inserted completely.
2 Isn't the toner sensed even if
the switch is held?
3 Is the problem solved by
replaceing the main PCB?
Step Check
1 Does paper double feeding
occur?
2 Is a foreign body caught on the
tail edge actuator?
3 Is the tail edge actuator
deformed?
4 Is the tail edge sensor turned
ON?
Result
Yes Remove the cause of non-
smooth operation of the link
lever.
Replace the link lever.
No Replace the pickup roller
holder ASSY.
No Replace the main motor.
No Replace the main frame L
ASSY.
Result
Yes Reset the cartridge.
Yes Replace the switch.
No Replace the main PCB.
Result
Yes Replace the separation pad.
Yes Remove a foreign body.
Yes Replace the tail edge actuator.
Yes Replace the tail edge sensor.
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Remedy
Remedy
Remedy
Confidential