Brother DCP-8085DN Service Manual page 72

CHAPTER 3 PERIODIC MAINTENANCE
This chapter details error messages and codes that the incorporated self-diagnostic
functions display if any error or malfunction occurs. If any error message appears, refer to
this chapter to find which components should be checked or replaced.
The latter half of this chapter provides sample problems that could occur in the main sections
of the machine and related troubleshooting procedures. This will help service personnel
pinpoint and repair defective components.
1. INTRODUCTION ........................................................................................................... 3-1
1.1 Precautions............................................................................................................ 3-1
1.2 Part names ............................................................................................................ 3-2
1.3 Initial Check ........................................................................................................... 3-3
2. DISTINGUISH ERROR CAUSE .................................................................................... 3-5
2.1 ERROR INDICATION ............................................................................................ 3-5
2.1.1 Error messages appearing on the LCD...................................................... 3-5
3. ERROR CODES ............................................................................................................ 3-9
3.1 Error Indication ...................................................................................................... 3-9
3.2 Error Code Cause and Remedy .......................................................................... 3-12
4. PAPER FEEDING PROBLEMS .................................................................................. 3-40
4.1 No Feeding .......................................................................................................... 3-40
4.2 Double Feeding ................................................................................................... 3-40
4.3 Paper Jam ........................................................................................................... 3-41
4.4 Dirt on Paper ....................................................................................................... 3-43
4.5 Wrinkles or creases ............................................................................................. 3-43
4.6 Waves in the paper / folds in the paper at the eject roller 2................................. 3-43
4.7 Curl in the paper .................................................................................................. 3-44
4.8 Prints only single side of the paper when duplex-printing ................................... 3-44
5. IMAGE DEFECT TROUBLESHOOTING .................................................................... 3-45
5.1 Image Defect Examples ...................................................................................... 3-45
5.2 Diameter of Rollers.............................................................................................. 3-45
5.3 Troubleshooting Image Defect ............................................................................ 3-46
6. SOFTWARE SETTING PROBLEMS .......................................................................... 3-60
7. NETWORK PROBLEMS............................................................................................. 3-61
8. TROUBLESHOOTING OF THE COMMUNICATIONS ERRORS ............................... 3-62
9. TROUBLESHOOTING OF THE CONTROL PANEL .................................................. 3-67
10. TROUBLESHOOTING OF FAX FUNCTIONS ............................................................ 3-69
11. DOCUMENT FEEDING PROBLEMS.......................................................................... 3-73
12. SCANNING IMAGE DEFECT TROUBLESHOOTING................................................ 3-77
13. OTHERS PROBLEMS ................................................................................................ 3-80
CONTENTS
Confidential