Brother Facsimile Equipment MFC7420 - Manual (Page 57)

Confidential 3 - 1 2
3.2.2.6 Toner cartridge
Develops the electrostatic latent image on the exposure drum with toner and forms the visible
image.
„ 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 displaying the ‘Toner Life End’
message on the LCD 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
1 2 3 4 5 6 7 8 9 10 11 12
Cartridge life
(Always power on)
3,000 4,663 5,720 6,452 6,988 7,397 7,721 7,982 8,198 8,380 8,534 8,668
Cartridge life
(Power ON/OFF per job)
1,957 3,297 4,272 5,014 5,597 6,067 6,455 6,780 7,056 7,293 7,500 7,681
Toner empty (5%) 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500
Toner empty (4%) 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125
Toner empty (3%) 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167
Toner empty (2%) 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250
Toner empty (1%) 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500
Cartridge life = 15a x 3000 / ( 4.3 x (a - 1) + 15 ) a : Page / job
Cartridge life+ON/OFF = 15a x 3000 / ( 4.3 x (a - 1) + 15 + 8 )
Cartridge life (Mechanical limit) : 3000 ( 1page / job )
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
1 2 3 4 5 6 7 8 9 10 11 12
Page / Job
Printable pages
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%)