Brother HL-6050 Service Manual page 8

TABLE OF CONTENTS
CHAPTER 5 PERIODIC MAINTENANCE............................................... 5-1
1. CONSUMABLE PARTS.............................................................................................5-1
1.1 Drum Unit ......................................................................................................................... 5-1
1.2 Toner Cartridge ................................................................................................................ 5-4
2. PERIODICAL REPLACEMENT PARTS ....................................................................5-7
2.1 Replacing the Fixing Unit ................................................................................................. 5-8
2.2 Replacing the Paper Feeding Kit Tray........................................................................... 5-12
2.3 Replacing the Paper Feeding Kit MP............................................................................. 5-16
2.4 Replacing the Laser Unit................................................................................................ 5-20
3. PERIODICAL CLEANING........................................................................................5-26
3.1 Cleaning the Printer Exterior.......................................................................................... 5-26
3.2 Cleaning the corona wire ............................................................................................... 5-27
3.3 Cleaning the Scanner Window ...................................................................................... 5-28
3.4 Cleaning the Electrical Terminals .................................................................................. 5-29
4. MTBF / MTTR ..........................................................................................................5-30
CHAPTER 6 TROUBLESHOOTING ....................................................... 6-1
1. INTRODUCTION .......................................................................................................6-1
1.1 Initial Check...................................................................................................................... 6-1
1.2 Warnings for Maintenance Work ..................................................................................... 6-2
1.3 Identify the Problem ......................................................................................................... 6-3
2. OPERATOR CALLS & SERVICE CALLS..................................................................6-4
2.1 Operator Calls .................................................................................................................. 6-4
2.2 Service Calls .................................................................................................................... 6-7
3. PAPER PROBLEMS................................................................................................6-11
3.1 Paper Loading Problems ............................................................................................... 6-11
3.2 Paper Jams .................................................................................................................... 6-13
3.2.1 Clearing jammed paper ..................................................................................................... 6-14
3.2.2 Causes & countermeasures .............................................................................................. 6-21
3.3 Paper Feeding Problems ............................................................................................... 6-22
4. SOFTWARE SETTING PROBLEMS.......................................................................6-24
5. MALFUNCTIONS ....................................................................................................6-27
6. IMAGE DEFECTS ...................................................................................................6-33
6.1 Image Defect Examples................................................................................................. 6-33
6.2 Troubleshooting Image Defect....................................................................................... 6-34
6.3 Location of Grounding Contacts .................................................................................... 6-52
6.3.1 Process unit ...................................................................................................................... 6-52
6.3.2 Printer body & Paper tray .................................................................................................. 6-52
7. INCORRECT PRINTOUT ........................................................................................6-53
8. NETWORK PROBLEM............................................................................................6-56
8.1 Installation Problem ....................................................................................................... 6-56
8.2 Intermittent Problem....................................................................................................... 6-57
8.3 TCP/IP Troubleshooting................................................................................................. 6-58
8.4 UNIX Troubleshooting.................................................................................................... 6-58
8.5 Windows NT/LAN Server (TCP/IP) Troubleshooting..................................................... 6-59
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