Brother MFC8420 Service Manual page 8
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Also See for MFC8420:
- User manual (442 pages) ,
- Quick setup manual (57 pages) ,
- Quick setup manual (56 pages)
Table of Contents
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TABLE OF CONTENTS
3.4
Paper Feeding Problems................................................................................................ 6-18
4.
SOFTWARE SETTING PROBLEMS .................................................................... 6-20
5.
MALFUNCTIONS.................................................................................................. 6-23
6.
TROUBLESHOOTING OF THE CONTROL PANEL ............................................. 6-28
7.
TROUBLESHOOTING OF FAX FUNCTIONS ...................................................... 6-30
8.
IMAGE DEFECTS................................................................................................. 6-34
8.1
Image Defect Examples ................................................................................................. 6-34
8.2
Diameter of Rollers......................................................................................................... 6-34
8.3
Troubleshooting Image Defect ....................................................................................... 6-35
8.4
Location of Grounding Contacts ..................................................................................... 6-53
8.4.1 Drum unit...........................................................................................................................6-53
8.4.2 Machine body & Paper tray ..............................................................................................6-53
9.
INCORRECT PRINTOUT ..................................................................................... 6-54
10. NETWORK PROBLEM ......................................................................................... 6-56
10.1 Installation Problem ........................................................................................................ 6-56
10.2 Intermittent Problem ....................................................................................................... 6-57
10.3 TCP/IP Troubleshooting ................................................................................................. 6-58
10.4 UNIX Troubleshooting .................................................................................................... 6-58
10.9 Brother Internet Print (TCP/IP) Troubleshooting ............................................................ 6-60
10.11 Novell Netware Troubleshooting .................................................................................... 6-61
10.12 AppleTalk Troubleshooting............................................................................................. 6-62
10.13 DLC/LLC Troubleshooting .............................................................................................. 6-62
10.14 Web Browser Troubleshooting (TCP/IP) ........................................................................ 6-62
10.15 Internet Fax Troubleshooting.......................................................................................... 6-63
CHAPTER 7 MAINTENANCE MODE...................................................... 7-1
1.
ENTRY INTO THE MAINTENANCE MODE............................................................ 7-1
2.
LIST OF MAINTENANCE-MODE FUNCTIONS ..................................................... 7-2
3.
DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS ................... 7-4
3.1
EEPROM Parameter Initialization (Maintenance mode 01/91) ........................................ 7-4
3.2
Printout of Scanning Compensation Data (Maintenance mode 05) ................................. 7-5
3.3
Placement of CCD Unit in Position for Transportation (Maintenance mode 06) .............. 7-7
3.4
ADF Performance Test (Maintenance mode 08) ............................................................. 7-7
3.5
Test Pattern 1 (Maintenance mode 09)............................................................................ 7-8
3.6
Firmware Switch Setting and Printout .............................................................................. 7-9
3.6.1 Firmware switch setting (Maintenance mode 10)................................................................7-9
3.6.2 Printout of firmware switch data (Maintenance mode 11) .................................................7-11
3.7
Operation Check of LCD (Maintenance mode 12) ......................................................... 7-12
3.8
Operational Check of Control Panel PCB (Maintenance mode 13) ............................... 7-13
3.9
Sensor Operational Check (Maintenance mode 32) ...................................................... 7-14
3.10 Received Data Transfer Function (Maintenance mode 53)............................................ 7-16
®
NT/LAN Server (TCP/IP) Troubleshooting.................................................... 6-59
®
95/98/Me Peer to Peer Print (LPR) Troubleshooting .................................... 6-59
®
®
95/98/Me/NT 4.0/2000 Peer to Peer Print (NetBIOS) Troubleshooting ........ 6-60
®
95/98/Me/2000/XP IPP Troubleshooting....................................................... 6-60
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