Brother MFC-J6935DW

Confidential
4.7.4 Wrinkles on documents...............................................................................2-83
4.7.5 Document size not correctly detected.........................................................2-83
4.8 Scanned-image Problems...................................................................................2-84
4.8.1 Defective images.........................................................................................2-84
4.8.2 Troubleshooting from image defect.............................................................2-84
4.9 Fax Problems ......................................................................................................2-89
4.9.1 No faxes can be sent ..................................................................................2-89
4.9.2 No faxes can be received............................................................................2-89
4.9.3 A communications error occurs...................................................................2-89
4.10 Other Problems ...................................................................................................2-90
4.10.1 The machine cannot be powered ON .........................................................2-90
4.10.2 USB flash memory does not function..........................................................2-90
4.10.3 Data of USB flash memory does not read...................................................2-90
4.10.4 Internal memory errors................................................................................2-91
4.10.5 Security Function Lock related problems....................................................2-91
4.10.6 Ink cartridge related problems.....................................................................2-91
4.10.7 Noise comes from machine.........................................................................2-92
4.10.8 “Unusable Device” is displayed...................................................................2-92
CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...............................................................3-1
1 PRECAUTIONS BEFORE PROCEEDING ....................................................................3-1
2 PACKING .......................................................................................................................3-2
3 SCREW CATALOGUE...................................................................................................3-3
4 SCREW TORQUE LIST .................................................................................................3-4
5 LUBRICATION...............................................................................................................3-7
6 OVERVIEW OF GEARS...............................................................................................3-16
7 ROUTING OF HARNESSES AND INK SUPPLY TUBES ...........................................3-17
8 DISASSEMBLY FLOW ................................................................................................3-28
9 DISASSEMBLY PROCEDURE....................................................................................3-30
9.1 Preparation..........................................................................................................3-30
9.2 Head Joint Rubber/Head/carriage Unit/CR Timing Belt/< India model only >
Edge Cover Dust Foam.......................................................................................3-34
9.3 MP Side Cover L .................................................................................................3-45
9.4 MP Side Cover R.................................................................................................3-46
9.5 MP Tray ASSY/MP Paper Detection Sensor PCB/< India model only >
MP Dust Foam.....................................................................................................3-47
9.6 Jam Clear Cover..................................................................................................3-50