iii
Confidential
2.4.8.2 Control panel inoperative........................................................................2-89
2.4.8.3 Lamps on the control panel does not light..............................................2-90
2.4.8.4 Touch panel inoperative (For models with touch panel).........................2-90
2.4.9 Fax Problems.................................................................................................2-91
2.4.9.1 No faxes can be sent..............................................................................2-91
2.4.9.2 Speed dialing or one-touch dialing will not work.....................................2-91
2.4.9.3 No faxes can be received.......................................................................2-92
2.4.9.4 The ringer does not sound......................................................................2-92
2.4.9.5 In on-hook dialing, the speaker does not sound.....................................2-92
2.4.9.6 Dial does not switch between tone and pulse ........................................2-93
2.4.9.7 A communications error occurs..............................................................2-93
2.4.9.8 Receive mode cannot be changed.........................................................2-93
2.4.9.9 Caller ID not displayed ...........................................................................2-93
2.4.10 Other Problems..............................................................................................2-94
2.4.10.1 The machine cannot be powered on or nothing appears on the LCD....2-94
2.4.10.2 When the power is on, the scanner crackles..........................................2-94
2.4.10.3 Memory card/PictBridge does not function.............................................2-94
2.4.10.4 Memory errors ........................................................................................2-95
2.4.10.5 Paper tray set does not work..................................................................2-95
CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...............................................................3-1
3.1 SAFETY PRECAUTIONS AND HANDLING NOTES ..................................................3-1
3.2 PACKING .....................................................................................................................3-3
3.3 SCREW CATALOGUE.................................................................................................3-4
3.4 SCREW TORQUE LIST ...............................................................................................3-5
3.5 LUBRICATION .............................................................................................................3-6
3.6 OVERVIEW OF GEARS.............................................................................................3-13
3.7 HARNESS ROUTING.................................................................................................3-14
3.8 DISASSEMBLY FLOW ..............................................................................................3-31
3.9 DISASSEMBLY PROCEDURE..................................................................................3-33
3.9.1 Preparation ....................................................................................................3-33
3.9.2 Head/Carriage Unit ........................................................................................3-37
3.9.3 Scanner Cover (Scanner Unit) and Scanner Cover Support .........................3-50
3.9.4 Manual Feed Slot Cover and ADF & Document Cover ASSY.......................3-55
3.9.5 Disassembly of ADF & Document Cover ASSY ............................................3-58
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