Life Of Toner Cartridge And Drum Unit - Brother 09055CDN Service Manual

2.6

Life of Toner Cartridge and Drum Unit

■ Life of toner cartridge
<Method of detecting toner life>
Toner life can be detected by toner sensor and by rotation rates of the develop roller.
"Replace Toner" is displayed on the LCD when the toner sensor detects that toner runs
out, or when the number of rotations of the develop roller reaches the cartridge life end.
- 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>
Remaining
toner
Memo:
When the number of rotations of the developer roller reaches the cartridge life end, "Replace Toner" is
displayed even if toner remains.
The life of toner cartridges when making prints of the print pattern specified by ISO/IEC 19798
is shown in the table below. (At the point of
Standard
High
Super High
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.
Standard
High
Super High
Full
High-duty
Low
Empty
Toner Empty
Toner cartridge
Black
Yellow, Magenta, Cyan
Black
Yellow, Magenta, Cyan
Black
Yellow, Magenta, Cyan
Toner cartridge
Black
Yellow, Magenta, Cyan
Black
Yellow, Magenta, Cyan
Black
Yellow, Magenta, Cyan
Normal-duty
(ISO/IEC19798) Low-duty
Cartridge Life End
Toner Empty
in the figure above)
2
Number of printable pages
2,500
1,500
4,000
3,500
6,000
6,000
Upper limit of rotations of the developer roller
72,450
43,470
115,920
101,430
173,880
173,880
2-14
pages
pages
pages
pages
pages
pages
pages
rotations
rotations
rotations
rotations
rotations
rotations
Confidential