Mechanical Components - Ricoh Di-C1 Manual

Toner
Bottles
OPC
Drums
Slide 92
This is a view of the internal structure of the machine.
There are 4 OPC drums.
Laser beams write latent images on the drums. There is one laser beam for
each drum.
Four toner images are transferred from the OPC drums to the image transfer
belt, on one rotation of the belt.
At the paper transfer unit, the four toner images are pushed off the belt onto
the paper.
The paper feeds up to the fusing unit, and out of the machine.
In the AT-C1 series, the order of drums from left to right is YCMK. In the Di-C1
it is YMCK. Why?
K is always at the right end, because it must always contact the transfer belt,
which moves away from the colour drums for black-and-white pages.
Y is always at the left end, and is the first to be deposited on the belt. The
first toner to be deposited has more chance to move around on the belt. If
yellow toner moves around on the belt, there is less of an image problem
than with M or C, because it is less visible.
The order of M and C depends on the designer's concept for the engine.

Mechanical Components

Y M C
92
Fusing Unit
Image Transfer
Belt (ITB)
Paper Transfer
Unit
K
Laser Optics
Unit
Di-C1 Training