Brother DCP-L8400CDN Service Manual page 76

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Error code 1400
Condensation
Leave switched ON. Fully open the Front Cover. Wait 30 minutes, switch OFF
and close cover, then switch ON.
Condensation occurred in the machine.
< User Check >
- Open the front and back covers and leave them for 30 minutes or more with the power ON.
After that, close the front and back covers and turn OFF and ON the power switch.
Step
1 Main PCB failure
2 Laser unit failure
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Error code 1500
Print Unable 15
Turn the power off and then back on again.
Error occurred in the paper eject origin sensor.
Step
1 Connection failure of the paper
eject origin sensor harness
2 Paper eject origin sensor failure
3 Paper eject ASSY failure
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Error code 1C00
Print Unable EB
Turn the power off and then back on again.
The reading signal of the EEPROM of the laser unit cannot be detected.
Step
1 Connection failure of the laser
unit flat cable
2 Laser unit failure
3 Main PCB failure
Cause
Replace the main PCB ASSY.
Replace the laser unit.
Cause
Reconnect the paper eject origin sensor
harness.
Replace the paper eject origin sensor.
Replace the paper eject ASSY.
Cause
Reconnect the laser unit flat cable.
Replace the laser unit.
Replace the main PCB ASSY.
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Remedy
Remedy
Remedy
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