4 ] Paper/Document Feeding Problems - Brother DCP6690CW Service Manual

[ 4 ] Paper/document feeding problems

Problem
(1) The "Enter Fax No." message
does not appear although
documents are set.
(2) Document not fed.
(3) Document double feeding
(4) Document jam
(5) Recording paper not fed.
(6) Recording paper jam
• Sensors by using Function code 32 in the maintenance mode
(Refer to Chapter 9, Section
• Document front sensor actuator
• Document sensor PCB
• Main PCB
• ADF and its related sections
• Foreign materials in the document path
• ADF motor and its harness
• Document feed roller and its related gears
• Document sensor PCB
• Main PCB
• ADF parts
• Document rear sensor actuator
• Foreign materials in the document path
• Sensors by using Function code 32 in the maintenance mode
(Refer to Chapter 9, Section
• ADF motor
• Main PCB
• Paper pull-in roller holder
• Base pad in the paper tray
• Base pads and tray flap pads in the DX paper tray #1
• Outer back cover
• PF-related gears
*1
• Duplex unit
• Main PCB
• Paper feed motor
*2
• Paper tray #1 or paper tray #2
• ASF-related gears
• ASF motor
• Flap of DX paper tray #1
• Paper feeding mechanism and duplex print mechanism
• Foreign materials in the paper path
• Check that the carriage-head flat cable is connected to the
carriage PCB.
• Connection of the DX cam switch harness to the main PCB
*1
• Duplex unit
• Carriage PCB
• Main PCB
*
1
*
2
4-40
Check:
9.4.9.)
9.4.9.)
For duplex print models
DX paper tray #1 for duplex print models
*1
*1
*1
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