Brother HL-1200 Service Manual

1-34
Confidential
4.7.4 Memory failure
4.7.5 Print failure
4.7.6 Paper size failure
4.7.7 Main motor failure
4.7.8 Power supply voltage failure
<User Check>
- Print the print data stored in the memory.
- Reduce the complexity or resolution of the data.
- Divide the data and print them separately.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
<User Check>
- Check that the maximum printable page number has not been exceeded.
- Turn the power switch OFF and then back ON again.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
<User Check>
- Set A4 or letter size paper in the paper tray.
Step Cause Remedy
1 Paper feed actuator L/R coming off Reattach the paper feed actuator L/R.
2
Connection failure of the paper
feed/paper printing position sensor
PCB harness
Reconnect the paper feed/paper printing
position sensor PCB harness.
3
Paper feed sensor failure Replace the paper feed/paper printing
position sensor PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Connection failure of the main
motor harness
Reconnect the main motor harness.
2
Connection failure of the motor
encoder PCB flat cable
Reconnect the motor encoder PCB flat
cable.
3 Motor encoder PCB failure Replace the motor encoder PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Low voltage power supply PCB
failure
Replace the low voltage power supply PCB
unit. Refer to the “3. IF YOU REPLACE THE
LOW VOLTAGE POWER SUPPLY PCB
UNIT” in Chapter 3 to reset the irregular
power supply detection counter.

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