Developing Unit; 1Controlling The Developing Bias - Canon iR4570 Series Service Manual

7.7 Developing Unit

7.7.1 Controlling the Developing Bias
iR2270 / iR2870 / iR3570 / iR4570
Developing Bias
AC bias
DC bias
Both these AC and DC biases are applied while an image is being formed, but are not applied between sheets.
T-7-9
800 Vp-p
-450 V to -650 V
Chapter 7
0006-6032
7-15