Toner Cartridge; Toner Life End Mode - Brother DPC-8060 Service Manual

3.2.4 Toner Cartridge

Develops the electrostatic latent image on the exposure drum with toner and forms the visible
image.

3.2.4.1 Toner life end mode

A new toner cartridge can print approximately 3,500 (standard toner) or approximately 7,000 (high
yield toner) A4 or Letter size single-sided pages at 5% coverage. In the case of low-duty printing,
"Toner Life End" is indicated by "TONER LIFE END" message appears on the LCD panel before
the toner runs out because the developer roller surface or other toner sealing is worn out due to a
rotation of the rollers. The upper limit of the drum rotation is 44,000 = 4,000 sheets x 11 rotations
(standard toner), 92,400 = 8,400 sheets x 11 rotations (high yield toner).
The following graph shows the number of printable pages in the case of A4 printing.
Standard (3.5K) toner
Page/job
Cartridge life
Cartridge life+ON/OFF
Toner empty (5%)
Toner empty (4%)
Toner empty (3%)
Toner empty (2%)
Toner empty (1%)
Cartridge life = 11a x 4200 / ( 3.6 x (a - 1) + 11 )
Cartridge life+ON/OFF = ( 11a x 4200 ) / ( 3.6 x (a - 1) + 11 + 9 )
Cartridge life (Mechanical limit) :
20,000
18,000
16,000
14,000
12,000
10,000
8,000
6,000
4,000
2,000
0
1 2 3
4,200 6,329 7,615
2,310 3,915 5,096
3,500 3,500 3,500
4,375 4,375 4,375
5,833 5,833 5,833
8,750 8,750 8,750
17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500
4200 ( 1page / job )
Cartridge life
Cartridge life+ON/OFF
Toner empty (5%)
Toner empty (4%)
Toner empty (3%)
Toner empty (2%)
Toner empty (1%)
1 2 3
4 5 6
8,477 9,094 9,559
6,000 6,715 7,295
3,500 3,500 3,500
4,375 4,375 4,375
5,833 5,833 5,833
8,750 8,750 8,750
4 5 6
Page / Job
3 -1 8
7 8 9
9,920 10,210 10,447 10,645 10,813 10,957
7,774 8,177 8,520
3,500 3,500 3,500
4,375 4,375 4,375
5,833 5,833 5,833
8,750 8,750 8,750
a : Page / job
7 8 9
10 11 12
8,817 9,075 9,302
3,500 3,500 3,500
4,375 4,375 4,375
5,833 5,833 5,833
8,750 8,750 8,750
10 11 12
Confidential