250
SEP 2004
Ver. 1.2
DP-1520P/1820P/1820E
b. The developer is mixed by the Toner Screws. The toner becomes negatively charged ( ñ ) and the
carrier becomes positively charged ( + ). The developer is magnetically attracted to the aluminum
sleeve of the Magnetic Roller, and the magnetic brush is formed.
c. The Magnetic Roller sleeve rotates in a counterclockwise direction. The height of magnetic brush is
controlled by the gap between the doctor blade and the sleeve surface.
d. The drum, with an electrostatic latent image, is rotated clockwise and makes contact with the
magnetic brush.
e. The negatively charged toner is attracted to the electrostatic latent image on the drum.
f. Charge (developer bias) is applied to the Magnetic Roller sleeve, which prevents toner from moving
to the non-image area of the drum. The distance between the drum and the sleeve is controlled by
the drum spacers.
Содержание Workio DP-1520P
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