Brother MFC-8460N Service Manual page 12

8.4.18 Counter Reset After Replacing the Fuser Unit, Laser Unit and
Paper Feed Kit (Function code 88) ................................................................... 8-27
8.4.19 Cancellation of the Memory Security Mode
(Not applicable to with out the NCU models and the Japanese model.) .......... 8-27
8.5 OTHER SERVICE FUNCTION ............................................................................... 8-28
8.5.1 Resetting the Developing Bias Voltage Counter ............................................... 8-28
CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING
9.1 ERROR INDICATION................................................................................................ 9-1
9.1.1 Equipment Errors................................................................................................. 9-1
9.1.1.1 Error messages appearing on the LCD ......................................................... 9-1
9.1.1.2 Error codes shown in "MACHINE ERROR X X" messages .......................... 9-4
9.1.2 Communications Errors ..................................................................................... 9-12
9.2 TROUBLESHOOTING ............................................................................................ 9-16
9.2.1 Introduction ........................................................................................................ 9-16
9.2.2 Precautions ........................................................................................................ 9-16
9.2.3 Checking Prior to Troubleshooting .................................................................... 9-16
9.2.4 Troubleshooting Based on Problem Type ......................................................... 9-17
9.2.4.1 Paper feeding problems............................................................................... 9-17
9.2.4.2 Software setting problems ........................................................................... 9-19
9.2.4.3 Malfunction................................................................................................... 9-22
9.2.4.4 Image defects .............................................................................................. 9-28
9.2.4.5 Incorrect printout .......................................................................................... 9-48
9.2.4.6 Network problem.......................................................................................... 9-50
9.2.4.7 Troubleshooting of the control panel ........................................................... 9-57
9.2.4.8 Troubleshooting of fax functions.................................................................. 9-59
APPENDIX 1 SERIAL NUMBERING SYSTEM
APPENDIX 2 FIRMWARE INSTALLATION
A2.1 INSTALLING THE UPDATE DATA TO THE MACHINE ................................APP. 2-1
A2.2 SETTING ID CODES TO MACHINES .............................................................APP. 2-7
APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION
x Confidential