3 ] Communications Related; 4 ] Paper/Document Feeding Related - Brother MFC5100C Service Manual

[ 3 ] Communications related
Trouble
(1) No tone is transmitted.
[ 4 ] Paper/document feeding related
Trouble
(1) Neither "COPY: PRESS
COPY" nor "FAX: NO. &
START" message appears
although documents are set.
(2) Document not fed.
(3) Document double feeding
(4) Document jam
(5) Recording paper not fed.
(6) Recording paper jam
• Main PCB
• NCU PCB
• Sensors by using the maintenance-mode function code 32.
(Refer to CHAPTER 5, Subsection 5.3.9.)
• Document front sensor actuator and document rear sensor
actuator
• Main PCB/Relay PCB
• ADF and its related sections
• ADF motor and its harness
• Document feed rollers and their related gears
• Main PCB/Relay PCB
• ADF parts
• ADF motor
• Relay PCB
• ADF-related gears
• Main PCB/Relay PCB
• Paper feeding mechanism
• Eccentric bushing R and L (Alignment with markings made
on the main chassis)
6 -1 8
Check:
Check: