Paper Feeding Problems; No Feeding - Brother HL-3040CN Service Manual

3.

PAPER FEEDING PROBLEMS

Problems related to paper feeding are end user recoverable if following the User Check items.
If the same problem occurs again, follow each procedure in the order of the number described
in the Step column in the tables below.
3.1

No Feeding

< >
User Check
- Check if the paper is loaded into the paper tray correctly.
- Turn over the stack of paper in the paper tray, or try rotating the paper 180° in the paper tray.
- Check if the thickness of the paper is 75 to 105g/m
Step
1 Paper pick-up roller
worn out
2 Plate gear damaged
3 Registration front
actuator
malfunction
4 Disconnection of
the pick-up
solenoid harness
5 Registration front/
rear sensor PCB
failure
6 Pick-up solenoid
failure
7 Paper feed motor
failure
8 Engine PCB failure
Engine PCB
Cause
Is the paper pick-up
roller worn out?
Is the plate gear damaged?
Does the registration
front actuator move
smoothly?
Is the harness of the
pick-up solenoid
disconnected?
Is the problem solved
by replacing the
registration front/rear
sensor PCB ASSY?
Does the pick-up
solenoid move correctly?
Is the problem solved
by replacing the paper
feed motor ASSY?
Is the problem solved
by replacing the engine
PCB ASSY?
Paper feed motor
Pick-up solenoid
2
.
Check Result
Plate gear
Fig. 3-7
3-51
Remedy
Yes Replace the roller
holder ASSY.
Yes Replace the paper tray.
No Re-assemble the
registration front
actuator.
Yes Reconnect the harness
of the pick-up solenoid.
Yes Replace the
registration front/rear
sensor PCB ASSY.
No Replace the pick-up
solenoid.
Yes Replace the paper feed
motor ASSY.
Yes Replace the engine
PCB ASSY.
Registration front/
rear sensor PCB
Registration front actuator
Roller holder ASSY
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