2-121
Confidential
■
White spots on one color image
<User Check>
- Check if the fuser fan and low-voltage power supply PCB fan are not blocked.
- Toner may be empty. Replace the toner cartridge with a new one.
- Refer to the User’s guide and remove the dirt on the exposure drum using a cotton swab.
- The drum unit may be damaged. Replace the drum unit with a new one.
- The belt unit may be damaged. Replace the belt unit with a new one.
■
Pinch roller cleaning procedure
Pull out both sides of the pinch roller cover from the ribs to remove the pinch roller cover.
Clean the pinch roller with a brush as rotating the pinch roller in the arrow direction with
your fingers.
Remove paper dust accumulated in the paper tray by turning over the paper tray.
Fig. 2-18
Step
Cause
Remedy
1
Dirt on the pinch roller of the
paper tray
Refer to the figure below and clean the pinch
roller.
2
Exposure drum dirty
Refer to
"2.5 Drum Cleaning" in Chapter 5
and perform drum cleaning.
3
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
4
Toner/New sensor PCB
failure
Replace the Toner/New sensor PCB ASSY.
Pinch roller cover
Paper dust
Rib
Rib
Paper tray
Pinch roller
Summary of Contents for 09055CDN
Page 22: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 37: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 47: ...2 8 Confidential ADF part A4 model Fig 2 6 Left side Right side Document feed path Face up ...
Page 48: ...2 9 Confidential ADF part Legal model Fig 2 7 Left side Right side Document feed path Face up ...
Page 180: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 211: ...3 28 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 212: ...3 29 Confidential Disassembly Re Assembly second ...
Page 416: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 436: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 445: ...5 7 Confidential Black and white scanning First side Front Fig 5 1 ...
Page 446: ...5 8 Confidential Black and white scanning Second side Back Fig 5 2 ...
Page 447: ...5 9 Confidential Color scanning First side Front Fig 5 3 ...
Page 448: ...5 10 Confidential Color scanning Second side Back Fig 5 4 ...
Page 475: ...5 37 Confidential Cover page sample Fig 5 18 End page sample Fig 5 19 ...
Page 482: ...5 44 Confidential Inter color position alignment adjustment chart Fig 5 23 ...
Page 491: ...5 53 Confidential Color test pattern Fig 5 28 MCYK Y C K M YCMK_ _A ...
Page 512: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 514: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 515: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 516: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 517: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 518: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 519: ...6 6 Confidential NCU PCB Circuit Diagram U S A Canada ...
Page 520: ...6 7 Confidential NCU PCB Circuit Diagram Europe Oceania ...
Page 521: ...6 8 Confidential NCU PCB Circuit Diagram China Asia South Africa Gulf ...
Page 523: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 581: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 585: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 589: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...