Lexmark X746de Service Manual page 285

Developing
The two primary components of the developing process are the photoconductor unit and the toner cartridge. The
toner cartridge contains a toner adder roll, developer roll and toner. Toner is advanced toward the toner adder
roll by three paddle assemblies. The advanced toner clings to the electrically charged toner adder roll. The toner
on the toner adder roll is then electrically attracted to the developer roll because of the difference in electrical
charge between the toner adder roll and the developer roll. The toner uniformly coats the developer roll with help
from the doctor blade and is introduced to the electrostatic image on the photoconductor drum. The toner then
transfers to the photoconductor drum.
Photoconductor unit
Photoconductor
drum
Developer roll
Developer cartridge
Toner add roll
(TAR)
Paddles
Diagnostic aids
7526
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