Xerox 7750DXF - Phaser Color Laser Printer Service Manual page 48

Imaging Unit Motors - There are two imaging unit motors providing drive to the
four imaging units: one drives the Y, M, and C drums, and the other drives the K
(black) drum. Like the main motor, the drum motors get 5 and 24 volt DC power
from 5 and 24 volt power supplies via the interface board. The motors are
enabled and the speed is controlled by the engine control board.
Imaging Unit
drive assy
2-12
Accumulator
belt drive assy
Developer
drive assy
Phaser 7750 Printer Service Manual
Main
drive
assy
Black
Imaging Unit
motor (K)
(hidden)
7750-451