No Paper Fed Manual Feed Slot (Error Code 9A); Double Feeding - Brother DCP-7055 Service Manual

3.5.3 No paper fed manual feed slot (Error code 9A)

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

3.5.4 Double feeding

User Check
• Check if the paper is loaded into the paper tray correctly.
• Check if the thickness of the paper is 60 to 105 g/m
• Clean the separation pad.
• Check that too much paper is not loaded in each tray.
Step
1 Paper feeding roller failure
Cause
Cause
2-72
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.
2
.
Remedy
Replace the paper feeding kit.
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