Service manual
TABLE OF CONTENTS
vi
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
10.5 Windows
®
NT/LAN Server (TCP/IP) Troubleshooting....................................................6-59
10.6 Windows
®
95/98/Me Peer to Peer Print (LPR) Troubleshooting ....................................6-59
10.7 Windows
®
95/98/Me Peer to Peer (HP JetAdmin Compatible Method) Troubleshooting ........6-59
10.8 Windows
®
95/98/Me/NT 4.0/2000 Peer to Peer Print (NetBIOS) Troubleshooting ........6-60
10.9 Brother Internet Print (TCP/IP) Troubleshooting ............................................................6-60
10.10 W indows
®
95/98/Me/2000/XP IPP 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