Brother MFC7420 Manuale Utente

Brother

vii

Confidential

CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING

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

9.1.1 Equipment

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

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

[ 2 ] Error codes shown in the "MACHINE ERROR X X" messages................... 9-5

9.1.2 Communications

Errors...................................................................................... 9-11

9.2 TROUBLESHOOTING ............................................................................................ 9-15

9.2.1 Introduction......................................................................................................... 9-15

9.2.2 Precautions ........................................................................................................ 9-15

9.2.3 Checking Prior to Troubleshooting ..................................................................... 9-15

9.2.4 Troubleshooting Based on Problem Type .......................................................... 9-16

[ 1 ] Paper feeding problems ............................................................................. 9-16

[ 2 ] Software setting problems ......................................................................... 9-18

[ 3 ] Malfunction................................................................................................. 9-21

[ 4 ] Image defects ............................................................................................ 9-27

[ 5 ] Incorrect printout ........................................................................................ 9-48

[ 6 ] Network problem ........................................................................................ 9-50

[ 7 ] Troubleshooting of the control panel.......................................................... 9-54

[ 8 ] Troubleshooting of fax functions ................................................................ 9-56

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. 2-9

APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION

APPENDIX 4 FIRMWARE SWITCHES (WSW)

APPENDIX 5 WIRING DIAGRAM