Brother MFC-7365DN Service Manual

2-11
Confidential
2.6 Life of Toner Cartridge and Drum Unit
<Life of Toner Cartridge>
This product detects the remaining toner only by the dot count and the number of rotations of
the develop roller. The function to detect by the light sensor is not installed. As this machine
is not equipped with a toner sensor as conventional models are, it manages the level of
remaining toner by dot count during printing and the number of rotations of the develop roller.
Therefore printing may stop with the error message “Replace Toner” even though some toner
remains. Even if “Replace Toner” is displayed on the machine, printing can be continued if
the user chooses to change the mode to Continue Mode. In Continue Mode, however, the
printing result when the toner runs out is not assured, meaning that the user shall be
responsible for it. In addition to this, even when the mode is set to Continue Mode, printing
stops when the number of rotations of the develop roller reaches the upper limit, and remains
stopped until the toner cartridge is replaced to prevent any problems, such as toner leakage.
The life of the toner cartridge varies according to the average number of print pages per job.
(See the table below.) The number of printable pages is larger when making continuous
prints in one job because deterioration of the develop roller is low.
Relationship between average print page per 1 job and life of toner cartridges
26/27ppm model
24ppm model
20/21ppm model
The develop roller also rotates for the warm-up operation when the power is turned ON and
when the cover is opened or closed. Therefore, when these operations are frequently
performed, the life of toner cartridges is shortened. (The table below shows the worst case in
which the warm-up operation is performed when the power is turned ON.)
Average print page (page/job) 1 2 3 · · ·
Continuance
Cartridge life (Starter) 630 950 1200 2100
Cartridge life (Standard) 1080 1600 2000 3600
Cartridge life (High-capacity) 2340 3500 4300 7800
Page
Average print page (page/job) 1 2 3 · · ·
Continuance
Cartridge life (Starter) 630 930 1100 2000
Cartridge life (Standard) 1080 1600 2000 3400
Cartridge life (High-capacity) 2340 3500 4200 7400
Page
Average print page (page/job) 1 2 3 · · ·
Continuance
Cartridge life (Starter) 630 930 1100 2000
Cartridge life (Standard) 900 1300 1600 2900
Cartridge life (Standard) (HL-2220) 1080 1600 2000 3500
Cartridge life (High-capacity) (HL-2220) 2340 3500 4200 7600
Page

Brother MFC-7365DN Specifications

Printing Specifications

print technology	Electrophotographic Laser
print speed	Up to 24ppm
print resolution	Up to 1200 x 600 dpi

Copying Specifications

copy speed	Up to 24cpm
copy resolution	600 x 600 dpi
copy reduction/enlargement	25% - 400% in 1% increments

Scanning Specifications

scanner type	Color Flatbed with ADF
document glass size	8.5” x 11” (letter)
scan resolution	Optical: Up to 600 x 2400 dpi

Paper Handling

paper size maximum	Up to 8.5” x 14” (legal size)
paper input capacity maximum	250-sheet capacity paper tray, single-sheet manual feed slot
output capacity maximum	100 sheets (face down), 1 sheet (face up)

Weight and Dimensions

unit dimensions	15.9” W x 15.7” D x 12.4” H
unit weight	25.6 lbs.
carton weight	32.6 lbs.
carton dimensions	20.7” W x 20.1” D x 19.4” H