No Paper Fed Manual Feed Slot; Double Feeding - Brother HL-2250DN Service Manual

4.1.3 No paper fed manual feed slot

Not detect paper at feeding from manual feed slot
User Check
• Load the paper into the manual feed slot.
Step
Harness connection failure of
1 registration front/rear sensor PCB
ASSY
Low voltage power supply PCB
2
ASSY failure
3 Main PCB failure
Registration front/rear sensor
failure
4

4.1.4 Double feeding

User Check
• Check if the paper is loaded into the paper tray correctly.
• Check whether the paper of the irregular thickness is loaded.
• Clean the separation pad.
Step
1 Paper feeding kit failure
Cause
Cause
2-22
Remedy
Check the harness connection of the
registration front/rear sensor PCB ASSY,
and reconnect it.
Replace the low voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Check the sensor performance following
the procedure in "Operational Check of
Sensors" (Chapter 5).
If any problem occurs, replace the regist
frame ASSY.
Remedy
Replace the paper feeding kit.
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