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3-81
Confidential
12. SCANNING IMAGE DEFECT
TROUBLESHOOTING
12.1 Image Defect Examples
Fig. 3-11
12.2 Troubleshooting Image Defect
Image defect related problems are end user recoverable if following the User Check items. If
the same problem occurs, follow each procedure in the order of the number described in the
Step column in the tables below.
■
Light on the page
<User Check>
- Check whether the setting of the contrast does not become light.
- Clean the document glass.
Step
Cause
Check
Result
Remedy
1
White level data
malfunction
Is the problem solved by
performing the
acquisition of white level
data. (Function code 55)
Yes
Perform the acquisition of
white level data. (Function
code 55)
2
Scanner module
failure
Is the problem solved by
replacing the CCD unit
(CCD model) or
document scanner unit.
(CIS model)
Yes
Replace the CCD module.
(CCD model)
Replace the document
scanner unit. (CIS model)
3
Main PCB failure Is the problem solved by
replacing the main PCB.
Yes
Replace the main PCB.
Содержание DCP 8085DN
Страница 13: ...CHAPTER 1 SPECIFICATIONS ...
Страница 52: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Страница 69: ...2 16 Confidential 3 3 Paper Feeding Fig 2 18 LT path DX path MP path Paper tray path ...
Страница 89: ...CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 178: ...Confidential CHAPTER 4 PERIODICAL MAINTENANCE ...
Страница 204: ...4 25 Confidential 23 Secure the Fuser unit with the pan B M4x20 Taptite screw Fig 4 37 Taptite pan B M4x20 Fuser unit ...
Страница 248: ...CHAPTER 5 DISASSEMBLY REASSEMBLY ...
Страница 265: ...5 12 Confidential Fig 5 7 EM2 4 places Separation pad ASSY ...
Страница 291: ...5 38 Confidential 38 Driver PCB Battery CIS model Main PCB Battery harness Drive PCB Battery Driver harness ...
Страница 400: ...5 147 Confidential 9 11 3 Printed Rubber Key 1 Remove the Printed rubber key Fig 5 170 Printed rubber key Panel cover ...
Страница 452: ...5 199 Confidential 9 33 Thermistor ASSY 1 Remove the Thermistor ASSY from the Frame L Fig 5 242 Frame L Thermistor ASSY ...
Страница 501: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 507: ...6 5 Confidential 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 516: ...CHAPTER 7 SERVICE MODE ...
Страница 525: ...7 7 Confidential For color scanning Fig 7 2 ...
Страница 527: ...7 9 Confidential For white and black scanning Fig 7 3 ...
Страница 528: ...7 10 Confidential For color scanning Fig 7 4 ...
Страница 567: ...Confidential CHAPTER 8 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Страница 569: ...8 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram Fig 8 1 ...
Страница 570: ...8 2 Confidential LVPS PCB Circuit Diagram 230V Fig 8 2 ...
Страница 571: ...8 3 Confidential LVPS PCB Circuit Diagram 115V Fig 8 3 ...