Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL
97.04.01
M-40
1156SBM1303A
13-3. Developing Bias
A negative voltage (Vb = Developing Bias voltage) is applied to the Sleeve Roller to
prevent a foggy background on the copy. The amount of toner attracted onto the surface
of the PC Drum depends on how much lower the PC Drum surface potential (Vi) is than
Vb (i.e., the potential difference).
D
When the potential difference is large, a greater amount of toner is attracted.
D
When the potential difference is small, a smaller amount of toner is attracted.
Because the Magnet Roller of this copier is movable, a flat spring is used as the Bias
Terminal which follows the movement of the Magnet Roller.
Sleeve/Magnet
Roller
Bias Connector
1151T01MCC
Bias Terminal
DS Collar
1134M018AA
Front
Varies depending on
the drawer.
Control Signal
ON
OFF
WIRING DIAGRAM
Developing Bias
PWB-A PJ13A-3
L
H
3-F