
Development Bias
The power pack [A] applies one voltage to the toner application roller [B],
toner metering blade [C], and bias brush [D], and a different voltage to the de-
velopment roller [E].
Bias Control (During Printing)
A charge of -700
±
40 V is applied to the toner application roller, and -400
±
10
V is applied to the development roller. Toner transfers from the toner applica-
tion roller to the development roller and on to the laser exposed areas on the
drum as shown below.
[D]
[B]
[C]
[A]
H516D518.wmf
[E]
[A]
H516D519.wmf
Development Roller
Toner Application Roller
GND
- 750V
- 400V
- 700V
- 100V
Print Data
White
Black
Drum Surface Voltage
Toner
Drum Exposed Area
H516D555.wmf
DETAILED SECTION DESCRIPTIONS
August 2nd,1995
PRINTING
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