
ii Confidential
4.4.1 Does not respond to operation from a computer ................................................... 2-24
4.4.2 Cannot read data .................................................................................................. 2-24
4.5 Troubleshooting for Control Panel Problems..................................................................... 2-25
4.5.1 Nothing is displayed on the LCD ........................................................................... 2-25
4.5.2 Control panel is inoperable.................................................................................... 2-25
4.6 Troubleshooting for Network Problems ............................................................................. 2-26
4.6.1 Cannot scan via network connection..................................................................... 2-26
4.6.2 Cannot connect to access point ............................................................................ 2-26
4.7 Troubleshooting for Other Problems.................................................................................. 2-27
4.7.1 Machine does not turn ON .................................................................................... 2-27
4.7.2 Cannot update firmware ........................................................................................ 2-27
4.7.3 Cannot save data in USB flash memory ............................................................... 2-27
4.7.4 USB device connection error................................................................................. 2-27
4.7.5 Cannot register...................................................................................................... 2-28
4.7.6 Counter does not reset even the consumable part has been replaced................. 2-28
4.7.7 Installation using USB flash memory is not operable ............................................ 2-28
CHAPTER 3 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS............................................................................................................. 3-1
2. PACKING ..................................................................................................................................... 3-2
3. SCREW CATALOGUE................................................................................................................. 3-3
4. SCREW TORQUE LIST ............................................................................................................... 3-4
5. LUBRICATION ............................................................................................................................. 3-5
6. OVERVIEW OF GEARS............................................................................................................... 3-6
7. HARNESS ROUTING................................................................................................................... 3-7
8. DISASSEMBLY FLOW CHART................................................................................................. 3-10
9. DISASSEMBLY PROCEDURE .................................................................................................. 3-11
9.1 Reverse roller / Pick up roller............................................................................................. 3-12
9.2 Bottom cover ASSY / Exit stopper..................................................................................... 3-14
9.3 Back cover ......................................................................................................................... 3-15
9.4 Side cover L/R ................................................................................................................... 3-17
9.5 Wireless LAN PCB ASSY.................................................................................................. 3-19
9.6 USB host PCB ASSY......................................................................................................... 3-20
9.7 Main PCB ASSY................................................................................................................ 3-21
9.8 Front cover L/R .................................................................................................................. 3-28
9.9 Front cover ASSY .............................................................................................................. 3-30
9.10 Panel unit / Panel flat cable / Panel PCB / LCD / Touch panel unit / NFC PCB ASSY ..... 3-31
9.11 Second side CIS unit / Second side CIS flat cable / Flat cable support film...................... 3-36
9.12 Eject jam sensor PCB........................................................................................................ 3-38
9.13 Document scanning position sensor PCB ......................................................................... 3-39