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Brother HL-1060 User Manual

Page 88

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CHAPTER IV -24

M-5

Insufficient output from high-voltage power supply unit

Possible cause

Step

Check

Result

Remedy

High-voltage
contact

1

Do any of the terminals on the
high-voltage contacts have dirt
or contact burns?

Yes

Clean the high-voltage contact.

2

Check the connection of the
harness between the high-
voltage power supply and the
driver PCB is OK.

Yes

Replace the high-voltage power
supply PCB.

No

Reconnect the harness
between the high-voltage
power supply and the driver
PCB.

M-6

SR PCB failure

Possible cause

Step

Check

Result

Remedy

SR bias contact

1

Do any of the terminals on the
SR contacts have dirt or
contact burns?

Yes

Clean the SR bias contact.

Ditto

2

Check the connection of the
harness between the SR PCB
and the driver PCB.

Yes

Replace the SR PCB.

M-7

Fixing heater temperature failure

Possible cause

Step

Check

Result

Remedy

Poor thermistor
harness contact

1

Are the connectors on the
erase lamp PCB and the high-
voltage power supply PCB
secured correctly?

No

Connect the connectors
securely.

Blown thermal
fuse

2

Remove the fixing unit and
measure the resistance
between the input connectors.
Is it open circuit?

Yes

Replace the fixing unit.

Thermistor
failure

3

Is the thermistor installed
properly?

Yes

Replace the fixing unit.

No

Reinstall the thermistor
properly.

Halogen heater
lamp failure

4

Remove the fixing unit and
measure the resistance of the
fixing unit lamp. Is it open
circuit?

Yes

Replace the halogen heater
lamp.