Brother HL-1200 Service Manual

1-16
Confidential
4. ERROR CAUSE AND REMEDY
4.1 Troubleshooting for Paper Feeding Problems
End users can solve problems related to paper feeding as long as they follow the User Check
items.
If the problem still cannot be solved, implement each procedure according to the step
numbers in the tables below.
4.1.1 No paper is fed from paper tray
<User Check>
- Check that the paper is set in the paper tray correctly.
- Check that there is not too much paper set in the paper tray.
- Flip over the paper in the paper tray or rotate the paper 180 degrees.
- Check that the thickness of the paper is within the standard.
- Check that the size of the paper is within the standard.
- Flip through the paper and reset it in the paper tray.
Step Cause Remedy
1 Foreign object inside the machine Remove the foreign object.
2
Gears around the plate up plate
coming off
Reattach gears around the plate up plate.
3
Attachment failure of the motor
drive belt
Reattach the motor drive belt.
4
Attachment failure of the laser
shutter arm
Reattach the laser shutter arm.
5
Connection failure of the main
motor harness
Reconnect the main motor harness.
6
Connection failure of the motor
encoder PCB flat cable
Reconnect the motor encoder PCB flat
cable.
7
Connection failure of the pick-up
solenoid harness
Reconnect the pick-up solenoid harness.
8 Motor drive belt failure Replace the motor drive belt.
9 Motor encoder PCB failure Replace the motor encoder PCB ASSY.
10
Low voltage power supply PCB
failure
Replace the low voltage power supply PCB
unit.
11 Laser unit failure Replace the laser unit.
12 Main PCB failure Replace the main PCB ASSY.

Brother HL-1200 Specifications

General

Print Technology	Laser
Interface	USB 2.0
Memory	1 MB
Weight	4.6 kg
Print Speed	20 ppm
Resolution	Up to 2400 x 600 dpi
Paper Input Capacity	150 sheets
Dimensions	340 mm x 238 mm x 189 mm
Supported Operating Systems	Windows, Mac OS