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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 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 EmptyToner Empty
Low-duty
High-duty
Normal-duty
(ISO/IEC24712)
2
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