Gestetner G060 Service Manual page 256

PHOTOCONDUCTOR UNIT
6.4.2 DRIVE
[A]
[B]
G060D302.WMF
The drum drive motor-K [A] drives the PCU for black. It also drives the transfer unit.
The drum drive motor-CMY [B] drives the PCUs for magenta, cyan, and yellow.
Using one motor to drive these three drums reduces CMY color misalignment.
G060 6-26 SM