3 ] Communications Related; 4 ] Paper/Document Feeding Related - Brother IntelliFax-3550 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) Recording paper not fed.
• Main PCB
• NCU PCB
• Sensors by using the maintenance-mode function No. 32.
(Refer to Chapter V, Section 3.8.)
• Actuators of the document front and rear sensors
• Main PCB
• ADF and its related sections
• Scanner motor and its harness
• Document feed rollers and their related gears
• Main PCB
• ADF parts
• Nip-related parts
• Multi-purpose sheet feeder
• Drum unit
• Heat-fixing unit
• Gear drive unit
• Main PCB
VI – 14
Check:
Check: