Fresa G024, Руководство по обслуживанию

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31 March, 1999 PROCESS CONTROL
2-1
Detailed
Descriptions
2. DETAILED SECTION DESCRIPTIONS
2.1 PROCESS CONTROL
2.1.1 OVERVIEW
In this machine, process control adjusts the following two parameters, to
compensate for changes in the environment, aging of the units, and differences
between individual units after they are replaced.
•
Development bias (V
B
): This is adjusted to maintain a consistent image density
in solid areas
•
Charge corona grid voltage (V
G
): This is adjusted to maintain a constant image
density in low image density (highlight) areas.
To monitor the machine's condition, only the ID sensor is used. There are no toner
density or potential sensors.
The ID sensor monitors the density of standard sensor patches made on the
transfer belt.
This printer uses a single-component toner. Unlike printers based on a two-
component toner, this printer does not need toner density control.