The waste toner collected by the cleaner blade is fed to the waste toner box using the waste toner feed screw in the drum unit. A torque limiter is provided at the
end of the waste toner feed screw is provided with a torque limiter. When the waste toner box is filled with waste toner, the torque limiter goes on to stop the waster
toner feed screw. As a result, the sensor flag of the waster toner full sensor (SR206) is pushed intermittently, reporting the waste toner full condition to the DC
controller PCB.
[1] Cleaner blade
[2] Waste toner stirring rod
[3] Waste toner box
[4] Torque limiter
[5] Drum
MEMO:
The waste toner box is capable of storing about 630 g of toner.