Brother MFC-7240 - Page 5

ii
Confidential
3.3 Communication Error Codes ............................................................................................. 2-21
3.4 Error Cause and Remedy.................................................................................................. 2-24
3.5 Paper Feeding Troubleshooting ........................................................................................ 2-60
3.5.1 Pickup function of paper tray does not work ....................................................... 2-60
3.5.2 No feeding ........................................................................................................... 2-60
3.5.3 Double feeding .................................................................................................... 2-61
3.5.4 Dirt on paper........................................................................................................ 2-61
3.5.5 Paper feeding at an angle ................................................................................... 2-61
3.5.6 Wrinkles or creases............................................................................................. 2-62
3.5.7 Curl in the paper.................................................................................................. 2-63
3.6 Image Defect Troubleshooting........................................................................................... 2-64
3.6.1 Image defect examples ....................................................................................... 2-64
3.6.2 Troubleshooting according to image defect ........................................................ 2-65
3.7 Software Setting Troubleshooting...................................................................................... 2-76
3.7.1 Cannot print data................................................................................................. 2-76
3.8 Document Feeding Troubleshooting.................................................................................. 2-77
3.8.1 No feeding ........................................................................................................... 2-77
3.8.2 Double feeding .................................................................................................... 2-77
3.8.3 Wrinkles............................................................................................................... 2-77
3.9 Scanning Image Defect Troubleshooting........................................................................... 2-78
3.9.1 Image defect examples ....................................................................................... 2-78
3.9.2 Troubleshooting according to scanning image defect ......................................... 2-78
3.10 Control Panel Troubleshooting .......................................................................................... 2-81
3.10.1 Nothing is displayed on the LCD ......................................................................... 2-81
3.10.2 The control panel does not work ......................................................................... 2-81
3.10.3 Lamp malfunction ................................................................................................ 2-81
3.11 Troubleshooting of FAX/Telephone Problems................................................................... 2-82
3.11.1 FAX cannot be sent............................................................................................. 2-82
3.11.2 FAX cannot be received ...................................................................................... 2-82
3.11.3 Communication error occurs ............................................................................... 2-82
3.11.4 Caller ID is not displayed..................................................................................... 2-82
3.11.5 Cannot talk on the handset ................................................................................. 2-83
3.12 Other Troubleshooting ....................................................................................................... 2-84
3.12.1 The machine is not turned ON or the LCD indication does not appear............... 2-84
3.12.2 Main fan does not rotate...................................................................................... 2-84
3.12.3 The room temperature is high or low................................................................... 2-84
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 ............................................................................................................................. 3-6