Printer and paper feed controller

Details Printer and paper feed controller Printer and paper feed controller

2006-03-21

2006-03-21

Hirshfeld, Andrew H. (Department: 2854)

Typewriting machines

Sheet or web

Including programmed-control-system for record-medium feed

C400S578000, C400S709000, C271S256000, C271S258010

Reexamination Certificate

active

07014378

ABSTRACT:
High accuracy is achieved in paper feed control without increasing the size of an encoder, which would result in an increase in cost. The velocity of a paper feeding mechanism is calculated from an edge signal that is generated by the encoder in response to the motion of the paper feeding mechanism. Based on the calculated velocity, a calculation is performed as to the time needed to reach a stop position since a detection of an encoder signal edge immediately before the stop position. Based on the calculated time, a control signal for stopping the paper feeding mechanism is generated.

REFERENCES:
patent: 5677726 (1997-10-01), Fuse
patent: 6188422 (2001-02-01), Ogura
patent: 6570354 (2003-05-01), Dobbertin et al.
patent: 6757515 (2004-06-01), Ueda
patent: 6862427 (2005-03-01), Sato et al.
patent: 2005/0254870 (2005-11-01), Takahashi

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