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CHAPTER 6 IMAGE FORMATION SYSTEM
6-10
COPYRIGHT
©
1999 CANON INC. CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
Figure 6-208 Sequence of Operations
WMUPR
WMUP
STBY
195˚C
200˚C
Potential sensor
Potential determined
Laser
Grid bias
Vg
Vg
Pw
Pw
Potential control sequence started
VD VL
Vdc
Vdc is computed based on this VD;
Vdc = VD - Vback (120 V)
Optimum grid
bias determined
Vg
VD
Vdc
Photosensitive drum
Potential sensor
Developing
cylinder
Optimum laser output
determined
F. Determining the Optimum Developing Bias
An optimum developing bias (Vdc) is computed based on the optimum drum surface potential
(VD).