Printing apparatus and sheet cartridge

Details Printing apparatus and sheet cartridge Printing apparatus and sheet cartridge

2006-09-26

2006-09-26

Rodriguez, Joseph C. (Department: 3653)

Sheet feeding or delivering

Feeding

With means to align sheet

Reexamination Certificate

active

07111842

ABSTRACT:
In a sheet feeding mechanism wherein a spring can be used to properly regulate a sheet feeding position, sheets are not deformed in spite of the urging force of the spring, and a required conveying force is prevented from being increased after sheet feeding. Specifically, immediately before a sheet is fed, a driving mechanism is used to move a slide plate leftward. A driving portion of the slide plate pushes an arm of a lever to rotate the lever counterclockwise against a tension spring. Thus, a connecting portion of the lever pushes an interlocking portion of a biasing plate downward. That part of the biasing plate rotates clockwise against the force exerted as a set spring portion is urged counterclockwise. In conjunction with this rotation, a biasing portion rotates clockwise to urge printing sheets to press them against a reference surface of a case.

REFERENCES:
patent: 3417988 (1968-12-01), Springer
patent: 4429865 (1984-02-01), Okada
patent: 4595191 (1986-06-01), Uchiyama et al.
patent: 5152622 (1992-10-01), Rasmussen et al.
patent: 5188353 (1993-02-01), Parks
patent: 6523933 (2003-02-01), Hirano et al.
patent: 11 254700 (1999-09-01), None
patent: 3180819 (2001-04-01), None

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