![Brother DCP-9055CDN Service Manual Download Page 52](http://html.mh-extra.com/html/brother/dcp-9055cdn/dcp-9055cdn_service-manual_53347052.webp)
2-14
Confidential
2.6 Life of Toner Cartridge and Drum Unit
■
Life of toner cartridge
<Method of detecting toner life>
There are two messages, which are displayed on the LCD to indicate that toner reaches
its life: “Toner Low” and “Replace Toner.” While “Toner Low” is displayed on the LCD
when the toner sensor detects a certain amount of toner is used, “Replace Toner” is
displayed on the LCD when the toner sensor detects that toner is used up or when the
number of rotations of the developer roller reaches its life.
- Detection by the toner sensor
This machine has a function to detect the remaining toner by checking the level at which
toner in a cartridge interrupts light using a transmissive light sensor.
- Detection by means of rotation rates of the developer roller reached its upper limit
This machine has a function to detect when the number of rotations reaches the upper
limit before the developer roller is worn out and becomes unusable.
<Relationship between printable pages of the toner cartridge and remaining toner>
The life of toner cartridges when making prints of the print pattern specified by ISO/IEC 24712
is shown in the table below. (At the point of
in the figure above)
To avoid problems caused by the worn-out of the developer roller surface and deterioration of
the toner ceiling, “Replace Toner” message is displayed and the print operation is prohibited
when the number of the rotations of the developer roller reaches the upper limit even if toner
remains. The upper limit of the number of the rotations of the developer roller is shown in the
table below.
Memo:
When the number of rotations of the developer roller reaches the
cartridge life end, “Replace Toner” is
displayed even if toner remains.
Toner cartridge
Number of printable pages
Standard
Black
2,500
pages
Yellow, Magenta, Cyan
1,500
pages
High
Black
4,000
pages
Yellow, Magenta, Cyan
3,500
pages
Super High
Black
6,000
pages
Yellow, Magenta, Cyan
6,000
pages
Toner cartridge
Upper limit of rotations of the developer roller
Standard
Black
72,450
rotations
Yellow, Magenta, Cyan
43,470
rotations
High
Black
115,920
rotations
Yellow, Magenta, Cyan
101,430
rotations
Super High
Black
173,880
rotations
Yellow, Magenta, Cyan
173,880
rotations
Full
Low
Empty
pages
Remaining
toner
Cartridge Life End
Toner Empty
Toner Empty
Low-duty
High-duty
Normal-duty
(ISO/IEC24712)
2
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 ...