Brother HL-2440 Service Manual page 28

8) Front cover is open
Front cover opened
User Check
• Check if the front cover is closed certainly.
Step
Cover sensor harness ASSY
failure
1
Harness connection failure of
2
Cover sensor harness ASSY
Part pressing the Cover sensor
3 harness ASSY is broken, which is
provided at inside of front cover
4 Toner LED PCB ASSY failure
5 Main PCB ASSY failure
9) Fuser cover is open
Fuser cover opened
User Check
• Check if the fuser cover is closed certainly.
Step
Paper eject actuator catching on
1
some position
2 Paper eject actuator failure
3 Eject sensor PCB ASSY failure
4 Main PCB ASSY failure
Cause
Cause
1-13
Remedy
Check the sensor performance following
the procedure in "Factory Inspection Mode"
(Chapter 5). If any problem occurs, replace
the Cover sensor harness ASSY.
Check the harness connection of the Cover
sensor harness ASSY and reconnect it.
Replace the front cover ASSY.
Replace the toner LED PCB ASSY.
Replace the main PCB ASSY.
Remedy
Correct catching of the paper eject
actuator.
Replace the paper eject actuator.
Replace the eject sensor PCB ASSY.
Replace the main PCB ASSY.
Confidential