Method and apparatus for controlling the sheet feeding speed...

Details Method and apparatus for controlling the sheet feeding speed... Method and apparatus for controlling the sheet feeding speed...

2008-05-06

2008-05-06

Culler, Jill E. (Department: 2854)

Typewriting machines

Sheet or web

For feeding sheet from stack or pack holder

C347S016000, C347S104000, C271S265010, C399S045000

Reexamination Certificate

active

11236661

ABSTRACT:
In order to adjust a position of a cut sheet when the cut sheet begins to be sent to a printing positions a leading edge of the cut sheet is fed towards a pair of sending rollers for sending the cut sheet to a printing position, wherein the sending rollers are held at rest or rotated in reverse. If a predetermined condition is satisfied, a feeding speed of the cut sheet decreases when the leading edge of the cut sheet reaches a position that is a predetermined distance upstream of the sending rollers. If the predetermined condition is not satisfied, the feeding speed of the cut sheet does not decrease before the leading edge of the cut sheet contacts the sending roller. A decline in printing quality and an unnecessary delay in printing time can be prevented. With the sending rollers, an effect to prevent the leading edge of the cut sheet from being fed in a slanted position is also maintained.

REFERENCES:
patent: 5104110 (1992-04-01), Haibara
patent: 5469197 (1995-11-01), Hiramatsu
patent: 5649276 (1997-07-01), Quesnel et al.
patent: 6304731 (2001-10-01), Able et al.
patent: 6341905 (2002-01-01), Suzuki
patent: 6412902 (2002-07-01), Matsumoto et al.
patent: 6866358 (2005-03-01), Masuyama et al.
patent: 10254202 (1998-09-01), None

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