Brother DCP-8065DN - New Toner Detection Mechanism

Confidential
3-20
3.2.4.2 New toner detection mechanism
(1) The motor drive is transmitted to the gear (4) through a few gears.
(2) When the gear (4) is rotated, the rib A on the gear (4) pushes against a new toner actuator, and
a new toner sensor detects the actuator motion. Then, the toner sensor detects that a new toner
cartridge is installed.
(3) For the high yield toner cartridge, the rib B is provided on the gear (4) as shown in the figure
below so that a new toner actuator is pushed against twice by both ribs A and B.
(4) When the toner actuator is pushed twice, the two signals are transmitted to a new toner sensor,
and it is detected that the high yield toner cartridge is installed.
For the standard toner cartridge, the rib B is not provided, and a new toner actuator is pushed
only once by the rib A. In this case, the one signal is transmitted to a new toner sensor so that
it is detected that the standard toner cartridge is installed.
<Machine side view when a new toner cartridge is installed>
Fig. 3-21
Gear (4)
Gear (3)
Gear (2)
Gear (1)
Rib B
Rib A
N
ew toner actuator
N
ew toner sensor
Relay front PCB ASSY