Image forming apparatus with intermediate transfer member

Details Image forming apparatus with intermediate transfer member Image forming apparatus with intermediate transfer member

2007-04-03

2007-04-03

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Transfer

C399S308000

Reexamination Certificate

active

10929355

ABSTRACT:
An electrostatic latent image is formed on a rotary image carrier. A developing roller is separatably abutted on the image carrier to supply toner onto the image carrier to make the latent image visible as a toner image. An intermediate transfer member is adapted to temporarily hold the toner image. A first transferer presses the intermediate transfer member against the image carrier to define a primary transfer position therebetween, so that the toner image on the image carrier is transferred to the intermediate transfer member. A second transferer is separatably abutted on the intermediate transfer member to transfer the toner image on the intermediate transfer member to a recording medium. An operation for forming the latent image is started after a predetermined time period elapses since a toner attached on at least one of a first region of the intermediate transfer member, on which a toner image to be transferred onto the recording medium is not transferred, and a second region on the image carrier corresponding to the first region has passed through the primary transfer position.

REFERENCES:
patent: 5640645 (1997-06-01), Namekata et al.
patent: 6985681 (2006-01-01), Taguchi et al.
patent: 6990298 (2006-01-01), Hamano et al.
patent: 3-64073 (1991-10-01), None
patent: 8-262841 (1996-10-01), None
patent: 2000-231276 (2000-08-01), None
patent: 2001-142280 (2001-05-01), None
patent: 2002-82533 (2002-03-01), None
patent: 2002-221879 (2002-08-01), None

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