Confidential
4.2.1 No paper feeding from paper tray.................................................................. 2-108
4.2.2 No paper feeding from MP tray ..................................................................... 2-109
4.2.3 Feed multiple numbers of sheets of paper .................................................... 2-109
4.2.4 Wrinkles on paper.......................................................................................... 2-110
4.2.5 Paper inclines diagonally............................................................................... 2-110
4.2.6 Unable to perform 2-sided printing .................................................................2-111
4.2.7 The order of pages changes when printing on plain paper is directly
placed on the tray on the back side ................................................................2-111
4.2.8 Paper jam ...................................................................................................... 2-112
4.3 Image Defect Troubleshooting................................................................................ 2-117
4.3.1 Image defect examples ................................................................................. 2-117
4.3.2 Troubleshooting image defect ....................................................................... 2-118
4.4 Software Setting Problems ..................................................................................... 2-135
4.4.1 Cannot print data ........................................................................................... 2-135
4.5 Network Problems .................................................................................................. 2-136
4.5.1 Cannot make a print through network connection ......................................... 2-136
4.6 Troubleshooting on Operational Panel ................................................................... 2-137
4.6.1 Nothing is displayed on the LCD. .................................................................. 2-137
4.6.2 LED is not lit. ................................................................................................. 2-137
4.6.3 Unable to perform panel operation ................................................................ 2-137
4.7 Troubleshooting on the PCB................................................................................... 2-138
4.7.1 Main PCB failure............................................................................................ 2-138
4.7.2 Full memory................................................................................................... 2-138
4.7.3 Print overrun .................................................................................................. 2-138
4.7.4 Engine PCB failure ........................................................................................ 2-138
4.7.5 Power supply PCB failure.............................................................................. 2-139
4.8 Others Problems..................................................................................................... 2-140
4.8.1 Unable to turn ON the power. ........................................................................ 2-140
4.8.2 Power is turned ON but the machine does not operate at all. ....................... 2-140
4.8.3 USB port for connecting the optional card reader does not function
(no response)................................................................................................. 2-140
CHAPTER 3 DISASSEMBLY AND ASSEMBLY
1. SAFETY PRECAUTIONS ..........................................................................3-1
2. PACKING....................................................................................................3-2
3. SCREW CATALOGUE ...............................................................................3-3
4. SCREW TORQUE LIST .............................................................................3-4