Brother HLL3290CDW Service Manual page 118

■
Error code 6F00
Detected that supply power is unstable (less than 100 times).
<User Check>
• Turn the power switch OFF and then back ON again.
• Use a noise filter on the power supply.
Step
The power supply waveform is
1
incorrect
■
Error code 7000
After the registration rear sensor detects paper pass, the eject sensor does not detect paper
pass.
<User Check>
• Remove the jammed paper.
Step
Foreign object inside the
1
machine
Eject actuator coming off or
2 caught in some sections of the
machine
3 Fuser cover attachment failure
Connection failure of the eject
4
sensor harness
5 Damaged fuser drive gear Z25
Damaged gears in the process
6
drive system
Damaged gears in the paper
7
feed drive unit
8 Eject sensor failure
9 Fuser unit failure
10 Main PCB failure
Cause
Cause
2-82
Remedy
Install a voltage stabilizer in the power
supply part.
Remedy
Remove the foreign object.
Reattach the eject actuator.
Reattach the fuser cover.
Reconnect the eject sensor harness.
Replace the fuser drive gear Z25.
Replace the process drive unit.
Replace the paper feed drive unit.
Replace the eject sensor PCB.
Replace the fuser unit.
Replace the main PCB.
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