Table of Contents
Advertisement
24 February, 1999
MECHANISM OVERVIEW
(9) ID sensor
The ID sensor detects the density of the sensor patches developed on the OPC
drum. The signal from the ID sensor is used for process control and toner supply
control.
(10) Development
The latent image on the drum attracts the negatively charged toner. Toner is
preferentially attracted to those places on the drum surface where the laser
reduced the negative charge. The development units for each color are included in
the revolver unit.
(11) Potential sensor
The potential sensor detects the electrical potential (the strength of the electric
field) on the photoconductor drum for process control.
(12) Laser exposure
The polygon mirror reflects the laser beam emitted from the laser diode and
projects it onto the drum through the f-theta lens, drum mirror, and toner shield
glass. The laser output varies in intensity to correspond to the image data, and this
forms a latent image on the drum.
1-13
Advertisement
Table of Contents
