Toshiba e-STUDIO520 Service Manual page 250

• New toner transport motor (M6)
The new toner transport motor (M6) drives the paddle and auger of the sub-hopper through
the pulley, timing belt and gear. Therefore the drive of the toner cartridge holder differs from
that of the sub-hopper.
(3) Toner recycling unit
A toner recycling system is adopted in this equipment. The toner, which has been recovered from
the drum surface by the drum cleaner, is transported to the developer unit by the toner recycling
unit, and thus the transported toner is recycled.
This unit consists of the recycle toner hopper to collect and mix the recycle toner, and the pipe to
transport the recycle toner from the drum cleaner to the recycle toner hopper.
Drum cleaner
• Recycle toner hopper
This hopper includes the paddle and auger driven by the hopper motor (M7).
• Pipe
The auger is equipped in the pipe to transport the toner. This auger is driven by the recycle
toner transport motor (M8).
e-STUDIO520/600/720/850 DEVELOPER UNIT
Pipe
Recycle
toner
Hopper motor
Recycle toner
hopper
Developer unit
Fig.12-3
12 - 4
Recycle toner
transport motor
March 2005 © TOSHIBA TEC