Developing Bias - Minolta Di350 Service Manual

FrameMaker Ver.5.5E(PC) Di350 GENERAL, MECHANICAL/ELECTRICAL
98.12.18
1171SBM1302A

13-2. Developing Bias

• The amount of toner attracted onto the surface of the PC Drum is controlled by varying
the developing bias voltage.
• As the PC Drum deteriorates and its photoconductive layer begins to wear, it becomes
more sensitive to the increase in the amount of toner. As a countermeasure against this
problem, the developing bias voltage is automatically switched according to the PC Drum
temperature, thereby stabilizing the image quality level.
Sleeve/Magnet Roller
Electrical Component
Vb
Developing Bias Contact Terminal
Control Signal
PJ14A-1A
M-27
PC Drum
1171M012AB
ON
L
OFF
H