Konica Minolta bizhub C658 Service Manual page 1840

bizhub C658/C558/C458/C368/C308/C258
9.3 Operation
9.3.1 Waste toner box drive mechanism
• The waste toner box is driven by the transport motor.
• The driving force of the transport motor is transmitted to the registration roller via the registration clutch.
The drive coupling gear mounted coaxially with the registration roller drives the waste toner box.
(1) Execution timing
• The waste toner box rotates in synchronism with the registration roller. For details on registration roller, see registration control section.
9.3.2 Control of waste toner conveyance through waste toner box
• Waste toner in the transfer belt unit and drum units, and excess toner in the developing unit are conveyed onto the waste toner box by the
toner collecting screw.
• Waste toner and waste developer (waste carrier + waste toner) are collected through the toner collecting ports for the each units.
• The waste toner collecting port is provided with a toner agitating blade that prevents toner from stagnating.
• The toner agitating blade is moved up and down as the toner collecting screw rotates. * The toner collecting port for the developing unit is
not provided with any toner agitating blade.
• Toner collecting screw 1 and toner collecting screw 2 (dedicated to the transfer belt toner collecting port) are installed in the waste toner
box.
• The screws provided on toner collecting screw 1 function to convey waste toner stagnant in the box uniformly onto the central portion of the
box.
• Toner collecting screw 2 functions to convey toner conveyed from the transfer belt unit uniformly onto the central portion of the box.
• There is a detection window for detecting a waste toner full condition provided at the central portion of the box. When the waste toner
conveyed onto the central portion of the box exceeds a predetermined height, waste toner spills over the waste toner full condition
detection section. For details, see "
[1]
[1] Toner agitating blade
[3] Toner collecting screw 1 (Waste toner box)
[1]
[2]
[1] Toner collecting port (Transfer belt unit)
O THEORY OF OPERATION bizhub C658/C558/C458/C368/C308/C258 > 9. TONER
O.9.3.4 Waste toner box full detection".
[2]
O-65
[3]
[2] Toner collecting screw 2 (dedicated to the transfer belt
toner collecting port)
- -
[2] Toner agitating blade
COLLECTING SECTION