Image forming apparatus having an aperture electrode and low fri

Details Image forming apparatus having an aperture electrode and low fri Image forming apparatus having an aperture electrode and low fri

1994-07-12

1996-07-23

Barlow, Jr., John E.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 206

Patent

active

055394388

ABSTRACT:
An image forming apparatus uses an electrode member with apertures therein through which toner is passed according to an image to a support medium. A toner carrier member has a low friction layer contacting the surface of an electrode member. The low friction layer is made of molybdenum disulfide or a similar solid lubricant. Friction between the surface of the low friction layer directly contacting the electrode member and toner particles is so small that the attachment force of the toner particles is small. Therefore, by using a small potential the electrode can be controlled for selectively passing toner particles through the apertures. As a result, a low cost driving element can be used for the image forming apparatus.

REFERENCES:
patent: 3689935 (1972-09-01), Pressman et al.
patent: 4635074 (1987-01-01), Young
patent: 5036341 (1991-07-01), Larsson
patent: 5153611 (1992-10-01), Kokado et al.
patent: 5170185 (1992-12-01), Takemura et al.
patent: 5200769 (1993-04-01), Takemura et al.
patent: 5404155 (1995-04-01), Kitamura

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