Toner Cartridge; Toner Life End Mode - Brother HL-2030 Service Manual

CHAPTER 3 THEORY OF OPERATION
2.4

Toner Cartridge

Develops the electrostatic latent image on the exposure drum with toner and forms the visible
image.
2.4.1

Toner life end mode

The life of the toner cartridge is starter: 1,500, standard: 2,500 pages at the 5% coverage. In
the case of low- duty printing, "Toner Life End" is indicated by lighting Toner LED before toner
runs out because the developer roller surface or other toner sealing is worn out due to rotation
of the rollers. The upper limit of the drum rotation is 45,000 = 3000 sheets x 15 rotations.
The following graph shows the number of printable pages in the case of A4 printing.
HL-2030/2040/2070N (Standard toner)
Page/job
Cartridge life
(Always power on)
Cartridge life
(Power ON/OFF per job)
Toner empty (5%)
Toner empty (4%)
Toner empty (3%)
Toner empty (2%)
12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500
Toner empty (1%)
Cartridge life = 15a x 3000 / ( 4.3 x (a - 1) + 15 )
Cartridge life+ON/OFF = 15a x 3000 / ( 4.3 x (a - 1) + 15 + 8 )
Cartridge life (Mechanical limit) :
14,000
12,000
10,000
8,000
6,000
4,000
2,000
0
1
1 2 3
3,000 4,663 5,720 6,452
1,957 3,297 4,272 5,014
2,500 2,500 2,500 2,500
3,125 3,125 3,125 3,125
4,167 4,167 4,167 4,167
6,250 6,250 6,250 6,250
3000 ( 1page / job )
Cartridge life
(Always power on)
Cartridge life
(Power ON/OFF per job)
Toner empty (5%)
Toner empty (4%)
Toner empty (3%)
Toner empty (2%)
Toner empty (1%)
2 3 4
4 5 6 7
6,988 7,397 7,721
5,597 6,067 6,455
2,500 2,500 2,500
3,125 3,125 3,125
4,167 4,167 4,167
6,250 6,250 6,250
5 6 7
Page / Job
3-26
8 9 10
7,982 8,198 8,380
6,780 7,056 7,293
2,500 2,500 2,500
3,125 3,125 3,125
4,167 4,167 4,167
6,250 6,250 6,250
a : Page / job
8 9 10
11 12
8,534 8,668
7,500 7,681
2,500 2,500
3,125 3,125
4,167 4,167
6,250 6,250
11 12
Confidential