Sharp AL-800, AL-840, Digital Copier <1> OPC drum surface potential shift in printing, <2> OPC drum surface potential and developing bias voltage during developing

d. OPC drum surface potential
<1> OPC drum surface potential shift in printing
<2> OPC drum surface potential and developing bias
voltage during developing
-310V
-850V
OPC drum surface potential (-V)
Charging/
cleaning
Laser
beams Dark area
potential
Toner attraction
potential
Light area potential
Exposure Residual toner
collection/
Development
Time (OPC drum rotating angle)
Transfer
Developing
bias
Charging
-310V
Start
OPC drum surface potential (-V)
During developing End
Developing
bias
Light area potential
Time (OPC drum rotating angle)
Dark area
potential
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