Image forming apparatus

Details Image forming apparatus Image forming apparatus

2007-02-06

2007-02-06

McKinnon, Terrell L. (Department: 2112)

Typewriting machines

Sheet or web

Including friction-feed means

C400S639000, C400S120170, C400S663000, C400S636300, C347S198000

Reexamination Certificate

active

11242852

ABSTRACT:
An image forming apparatus has a chassis; a print head unit pivotably supported by the chassis; a platen roller rotatably supported by the chassis to perform printing with the print head unit; a metal feed roller rotatably supported by the chassis to convey paper; a metal press roller rotatably supported to the chassis so as to be pressed against the feed roller to convey paper; and feed roller bearings mounted to the chassis for rotatably supporting the feed roller. The feed roller bearings have contact parts that project toward the print head unit, such that the contact parts are pressed into contact with the print head unit when the print head unit is pressed against the platen roller during printing. The precision with which paper is fed and printing is performed can be improved.

REFERENCES:
patent: 5221932 (1993-06-01), Kurita
patent: 5957599 (1999-09-01), Yamada
patent: 7014376 (2006-03-01), Maruyama et al.
patent: 2005/0057634 (2005-03-01), Huegle
patent: 2005/0069370 (2005-03-01), Yamada et al.
patent: 64-1962 (1989-01-01), None
patent: 10-202927 (1998-08-01), None
patent: 2000-168188 (2000-06-01), None

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