HP M750 series

Print cartridges
The product has four print cartridges, one for each color: yellow, magenta, cyan, and black. Each of them has
the same structure. The cartridges are filled with toner and consist of the following components:
●
Photosensitive drum
●
Developing unit
●
Primary charging roller
The DC controller rotates the motors to drive the photosensitive drum, developing unit, and primary charging
roller.
Figure 1-24 Print cartridge block diagram
M6
M2
M3
DC controller
Developing unit
Memory tag
Developing
disengagement
motor
PS11:
Developing disengagement
sensor
Drum motor
Developing motor
Photosensitive drum
Primary charging roller
PS13:
YMC drum home
position sensor
34 Chapter 1 Theory of operation ENWW