
31 March, 1999
PCU (PHOTOCONDUCTOR UNIT)
2-9
Detailed
Descriptions
Used toner collection drive
The main motor drives the used toner collection process. There are two
mechanisms, one for the transfer belt and one for the OPC.
The pulley [A] drives the transfer belt toner collection auger [B] via gears.
The paper feed drive gear [C] drives the OPC cleaning brush [D], OPC belt toner
collection auger [E], and used toner collection auger [F] via a series of gears.
Transfer belt revolutions
The transfer belt has 15 marks on it at 39.2 mm intervals (one full rotation of the
transfer belt is 588 mm).
The number of transfer belt revolutions differs between single-color black (K) and
4C (YCMK) modes, as shown in the following table.
Print mode
Revolutions
Single-color black (K)
(Paper 4 marks)/588
4C mode (YCMK)
4
Even when the printing data consists of only one, two, or three colors out of Y, C,
and M, the printing operation is the same for 4C data.
G024D604.WMF
[A]
[B]
[C]
[D]
[E]
[F]