Brother MFC-8220 Service Manual page 7

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 ....................................................................5-9
2.1 Fixing Unit....................................................................................................................... 5-10
2.2 Paper Feeding Kit........................................................................................................... 5-18
3. PERIODICAL CLEANING........................................................................................5-22
3.1 Cleaning the Machine Exterior....................................................................................... 5-22
3.2 Cleaning the Scanner .................................................................................................... 5-22
3.3 Cleaning the Drum Unit.................................................................................................. 5-23
3.4 Cleaning the Scanner Window ...................................................................................... 5-23
3.5 Cleaning the Electrical Terminals .................................................................................. 5-24
4. MTBF / MTTR ..........................................................................................................5-25
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. ERROR MESSAGE ...................................................................................................6-4
2.1 Error Message on the LCD .............................................................................................. 6-4
2.2 Error Codes Shown in the "MACHINE ERROR X X" message....................................... 6-6
3. PAPER PROBLEMS................................................................................................6-10
3.1 Paper Loading Problems ............................................................................................... 6-10
3.2 Original Jams ................................................................................................................. 6-11
3.2.1 Original is jammed in the ADF (Automatic document feeder)............................................ 6-11
3.3 Paper Jams .................................................................................................................... 6-11
3.3.1 Clearing jammed paper ..................................................................................................... 6-11
3.3.2 Causes & countermeasures .............................................................................................. 6-15
3.4 Paper Feeding Problems ............................................................................................... 6-16
4. SOFTWARE SETTING PROBLEMS.......................................................................6-18
5. MALFUNCTIONS ....................................................................................................6-20
6. TROUBLESHOOTING OF THE CONTROL PANEL ...............................................6-24
7. TROUBLESHOOTING OF FAX FUNCTIONS.........................................................6-26
8. IMAGE DEFECTS ...................................................................................................6-31
8.1 Image Defect Examples................................................................................................. 6-31
8.2 Diameter of Rollers ........................................................................................................ 6-31
8.3 Troubleshooting Image Defect....................................................................................... 6-32
8.4 Location of Grounding Contacts .................................................................................... 6-50
8.4.1 Drum unit .......................................................................................................................... 6-50
8.4.2 Machine body & Paper tray .............................................................................................. 6-50
9. INCORRECT PRINTOUT ........................................................................................6-51
v
MFC-8220
SERVICE MANUAL