Brother DCP-8070D Service Manual page 90

CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING
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 .................................................................................. 3-41
4.1 No Feeding .......................................................................................................... 3-41
4.2 Double Feeding ................................................................................................... 3-41
4.3 Paper Jam ........................................................................................................... 3-42
4.4 Dirt on Paper ....................................................................................................... 3-44
4.5 Wrinkles or creases ............................................................................................. 3-44
4.6 Waves in the paper / folds in the paper at the eject roller 2................................. 3-44
4.7 Curl in the paper .................................................................................................. 3-45
4.8 Prints only single side of the paper when duplex-printing ................................... 3-45
5. TROUBLESHOOTING FOR PRINT IMAGE DEFECT FROM PC/USB/FAX RECEPTION...... 3-46
5.1 Image Defect Examples ...................................................................................... 3-46
5.2 The pitch which appears in the image caused by failure of a roller. .................... 3-47
5.3 Troubleshooting for image Defect........................................................................ 3-48
6. SOFTWARE SETTING PROBLEMS .......................................................................... 3-63
7. NETWORK PROBLEMS............................................................................................. 3-64
8. TROUBLESHOOTING OF THE COMMUNICATIONS ERRORS ............................... 3-65
9. TROUBLESHOOTING OF THE CONTROL PANEL .................................................. 3-71
10. TROUBLESHOOTING OF FAX FUNCTIONS ............................................................ 3-73
CONTENTS
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