Brother MFC-9420CN Service Manual page 9

8.4.13 Acquisition of White Level Data and CIS Scanner Area Setting
(Function mode 55) ............................................................................................8-20
8.4.14 Paper Feeding and Ejecting Test (Function mode 67).......................................8-20
8.4.15 EEPROM Customizing (Direct entering of the four-digit code.)
(Function mode 74) ............................................................................................8-21
8.4.16 Display of the Equipment's Log Information (Function mode 80) ......................8-22
8.4.17 Machine Error Code Indication (Function mode 82) ..........................................8-25
8.4.18 Output of Transmission Log to the Telephone Line (Function mode 87)...........8-25
8.4.19 Cancellation of the Memory Security Mode
(Not applicable to the Japanese model) ............................................................8-25
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......................................................................................9-11
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 ] Software setting problems .........................................................................9-16
[ 2 ] Image failure ..............................................................................................9-19
[ 3 ] Paper transport error..................................................................................9-46
[ 4 ] Incorrect printout ........................................................................................9-48
[ 5 ] Network problem ........................................................................................9-50
[ 6 ] Troubleshooting of the control panel..........................................................9-54
[ 7 ] 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
viii Confidential