Image forming apparatus

Electrophotography – Having particular structure – Modular or displaceable

Reexamination Certificate

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Details

C399S107000, C399S361000, C399S397000

Reexamination Certificate

active

07010242

ABSTRACT:
An image forming apparatus includes: a first image forming unit having a first printing section for forming a first image on the paper; a second image forming unit having a second printing section for forming a second image on the paper; and a paper conveying unit for conveying the paper from the first image forming unit to the second image forming unit. Accordingly, two kinds of image can be formed employing one image forming apparatus. The first image and the second image may be formed using the same recording material (toner) or different recording materials (toners).

REFERENCES:
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patent: 5598257 (1997-01-01), Keller et al.
patent: 5930556 (1999-07-01), Imamiya
patent: 6256463 (2001-07-01), Manzer et al.
patent: 6269237 (2001-07-01), Olbrich et al.
patent: 6331004 (2001-12-01), Katou et al.
patent: 6374066 (2002-04-01), Smith et al.
patent: 6381440 (2002-04-01), Bock et al.
patent: 6389253 (2002-05-01), Nonomura et al.
patent: 6615732 (2003-09-01), Hunold et al.
patent: 201 19 854 (2001-05-01), None
patent: 0 627 671 (1997-02-01), None
German Office Action dated Oct. 7, 2004.

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