Brother DCP-7055 Service Manual page 37

3.7 Software Setting Problems .................................................................................. 2-91
3.7.1 Cannot print data...................................................................................... 2-91
3.8 Network Problems ............................................................................................... 2-92
3.8.1 Cannot make a print through network connection
(Wireless LAN model only) (Error code DE, EE)...................................... 2-92
3.9 Document Feeding Problems .............................................................................. 2-93
3.9.1 No feeding ................................................................................................ 2-93
3.9.2 Double feeding ......................................................................................... 2-93
3.9.3 Paper jam ................................................................................................. 2-94
3.9.4 Wrinkles.................................................................................................... 2-95
3.10 Scanning Image Defect Troubleshooting............................................................. 2-96
3.10.1 Image defect examples ............................................................................ 2-96
3.10.2 Troubleshooting image defect .................................................................. 2-96
3.11 Troubleshooting of the Control Panel .................................................................. 2-99
3.11.1 Nothing is displayed on the LCD .............................................................. 2-99
3.11.2 The control panel does not work .............................................................. 2-99
3.11.3 Lamp malfunction ..................................................................................... 2-99
3.12 Troubleshooting of FAX/Telephone Functions ................................................... 2-100
3.12.1 FAX can't send it .................................................................................... 2-100
3.12.2 FAX cannot be transmitted and received. .............................................. 2-100
3.12.3 No bell ring ............................................................................................. 2-100
3.12.4 A communication error occurs................................................................ 2-101
3.12.5 Reception mode cannot be changed...................................................... 2-101
3.12.6 Caller ID are not displayed ..................................................................... 2-101
3.12.7 Cannot talk on the handset .................................................................... 2-101
3.13 PCB Problems ................................................................................................... 2-102
3.13.1 Main PCB failure .................................................................................... 2-102
3.13.2 Out of Memory........................................................................................ 2-102
3.13.3 High voltage power supply PCB ASSY failure ....................................... 2-102
3.13.4 Low voltage power supply PCB ASSY failure ........................................ 2-103
3.13.5 NCU ASSY failure .................................................................................. 2-103
3.14 Other Problems ................................................................................................. 2-104
3.14.1 The machine is not turned ON, or the LCD indication does not appear. 2-104
3.14.2 The fan motor 60 ASSY does not rotate. ............................................... 2-104
3.14.3 The room temperature is high or low...................................................... 2-104
3.14.4 Problem associated with Secure Function Lock..................................... 2-104
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