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Removing Excess Developer
Waste
Developer
Coils
! Fresh toner contains 10% carrier (by weight) in this model.
! So, developer builds up in the development unit when fresh toner
is supplied, and waste developer must be removed.
! Excess developer goes out through a port at the top of the
development unit.
! It then goes to the excess developer coil, and from there to the
horizontal used toner transport coil.
Slide 345
# The horizontal used toner transport coil is part of the waste toner disposal
mechanism at the rear of the machine (see the Waste Toner section of the
course). The excess developer goes to the waste toner collection tank with the
waste toner from the PCUs and the transfer belt.
# The excess developer is not necessarily used developer. Fresh developer is
always being added from the toner cartridge, and this can overflow to the waste
developer coil.
345
V-C3 Training
Horizontal
Used Toner
Transport
Coil
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