Brother HL-4140CN - Page 370

5-57
Confidential
■ 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 printer 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 printer 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 19798
is shown in the table below. (At the point of in the figure above)
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
Full
Low
Empty
pages
Remaining
toner
Cartridge Life End
Toner EmptyToner Empty
Low-duty
High-duty
Normal-duty
(ISO/IEC19798)
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