Brother MFC-9420CN Service Manual - Page 10

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[ 4 ] NVRAM Initial (Code 46)............................................................................8-45

[ 5 ] Total Page Set (Code 47) ..........................................................................8-45

[ 6 ] Each Image Set (Code 48) ........................................................................8-46

[ 7 ] Next Life Set (Code 49) .............................................................................8-47

CHAPTER 9

ERROR INDICATION AND TROUBLESHOOTING

9.1

ERROR INDICATION ................................................................................................9-1

9.1.1

Equipment Errors .................................................................................................9-1

[ 1 ]

Error messages appearing on the LCD .......................................................9-1

[ 2 ]

Error codes shown in "MACHINE ERROR X X" messages.........................9-5

9.1.2

Communications Errors......................................................................................9-15

9.2

TROUBLESHOOTING ............................................................................................9-19

9.2.1

Introduction.........................................................................................................9-19

9.2.2

Precautions ........................................................................................................9-19

9.2.3

Checking Prior to Troubleshooting.....................................................................9-19

9.2.4

Troubleshooting Based on Problem Type ..........................................................9-20

[ 1 ]

Software setting problems .........................................................................9-20

[ 2 ]

Image failure ..............................................................................................9-23

[ 3 ]

Paper transport error..................................................................................9-50

[ 4 ]

Incorrect printout ........................................................................................9-52

[ 5 ]

Network problem ........................................................................................9-54

[ 6 ]

Troubleshooting of the control panel..........................................................9-58

[ 7 ]

Troubleshooting of fax functions ................................................................9-60

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. 2-8

APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION

APPENDIX 4 FIRMWARE SWITCHES (WSW)

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