Sharp AR-168N Specifications download pdf (Page 32)

AR-168N/168L COPY PROCESS 6 - 3

Step-3: Developing (DC bias)

A bias potential is applied to the MG roller in the two component

magnetic brush developing method, and the toner is charged negative

through friction with the carrier.

Non-image area of the drum surface charged with negative potential

repel the toner, whereas the laser exposed portions where no negative

charges exist, attract the toner. As a result, a visible image appears on

the drum surface.

Toner is attracted over the shadowed area because of the developing

bias.

Step-4: Transfer

The visible image on the drum surface is transferred onto the print

paper by applying a positive charge from the transfer corona to the

backside of the print paper.

Step-5: Separation

Since the print paper is charged positively by the transfer corona, it is

discharged by the separation corona. The separation corona is

connected to ground.

Step-6: Cleaning

Toner remaining on the drum is removed and collected by the cleaning

blade. It is transported to the waste toner collecting section in the

cleaning unit by the waste toner transport roller.

:Carrier (Magnetized particle)

:Toner (Charge negative by friction)

(N) (S) Permanent magnet

(provided in three locations)

MG roller

400V 8V

About DC 5.2kV

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Sharp AR-168N Specifications Page 32