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7-1
Confidential
1.
PRECAUTIONS
To avoid creating secondary problems by mishandling, follow the warnings below during
maintenance work.
Periodical replacement parts are the parts to be replaced periodically to maintain product
quality. These parts would affect the product quality if they loose their functionality even if they
do not appear to be damaged or there is no change in their appearance.
When replacing the periodical replacement parts, each of the counters need to be reset in order to
record the number of replacement times. Refer to
“2.2 Parts Life Reset Function” in Chapter 5
Also make sure to wipe the dirt on the drum unit as shown in the figure below when replacing
each of the periodical replacement parts.
The number of printed pages of the machine can be checked on Print Settings. (Refer to
User’s Guide how to printout of User Settings.) The actual number of printed page will vary
depending on the type of print job or the paper to being used. The figures indicated as the
approximate life in the table above are worked out when printing a general business document
(in accordance with ISO/IEC 19798) on A4-size paper.
WARNING
- Always turn off the power switch and unplug the power cord from the power outlet before
accessing any parts inside the machine.
- When opening the front cover or back cover to access any parts inside the machine,
never touch the shaded parts shown in the following figures.
Note:
- If the fuser unit is replaced after errors related to the fuser unit occur, you need to wait
until the machine sufficiently cools down before replacing the unit. After replacing the
unit, turn ON the machine and leave if for approximately fifteen minutes. This will make
the machine to be released from the error.
- After disconnecting flat cables, check that each cable is not damaged at its end or
shortcircuited.
- When connecting flat cables, do not insert them at an angle. After insertion, check that
the cables are not at an angle.
Summary of Contents for DCP-9055CDN
Page 21: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 36: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 46: ...2 8 Confidential ADF part A4 model Fig 2 6 Left side Right side Document feed path Face up ...
Page 47: ...2 9 Confidential ADF part Legal model Fig 2 7 Left side Right side Document feed path Face up ...
Page 178: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 206: ...3 25 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 207: ...3 26 Confidential Disassembly Re Assembly second 5 ...
Page 381: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 397: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 405: ...5 6 Confidential Black and white scanning First side Fig 5 1 ...
Page 406: ...5 7 Confidential Black and white scanning Second side Fig 5 2 ...
Page 407: ...5 8 Confidential Color scanning First side Fig 5 3 ...
Page 408: ...5 9 Confidential Color scanning Second side Fig 5 4 ...
Page 433: ...5 34 Confidential Cover page sample Fig 5 17 End page sample Fig 5 18 ...
Page 440: ...5 41 Confidential Inter color position alignment adjustment chart Fig 5 22 ...
Page 447: ...5 48 Confidential Fig 5 25 ...
Page 450: ...5 51 Confidential Color test pattern Fig 5 27 MCYK Y C K M YCMK_ _A ...
Page 470: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 472: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 473: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 474: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 475: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 476: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 477: ...6 6 Confidential NCU PCB Circuit Diagram U S A Canada ...
Page 478: ...6 7 Confidential NCU PCB Circuit Diagram Europe Oceania ...
Page 479: ...6 8 Confidential NCU PCB Circuit Diagram China Asia South Africa Gulf ...
Page 481: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 523: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 527: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 531: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...