Method of controlling a carriage and a paper feed in a printer

Details Method of controlling a carriage and a paper feed in a printer Method of controlling a carriage and a paper feed in a printer

1994-08-01

1996-02-13

Yan, Ren

Typewriting machines

Sheet or web

Including programmed-control-system for record-medium feed

400248, 400279, B41J 1142

Patent

active

054907349

ABSTRACT:
The object of the current invention is to print characters, for example, on a substantially full area of a recording medium extended up to the leading or trailing edge of the recording medium. A carriage is moved so that a print hole of a ribbon mask is positioned at a medium center as viewed in the direction of feeding of a recording medium. The recording medium is fed to a position so that the print hole is at a print start position. A print operation is carried out toward a first side edge of the recording medium. The recording medium is then fed in the reverse direction to a position where the print hole is away from the recording medium as viewed in the character pitch direction. The carriage is then moved so that the print hole is positioned at a medium center as viewed in the direction of feeding of a recording medium. Thereafter, the medium is fed to a position so that the print hole is at a print start position. A print operation is then carried out toward a second side of the recording medium. A similar operation may be carried out to print on the trailing edge of a recording medium. Thus, characters may be printed on the leading or trailing edge of the recording medium without catching the any of the corners of the recording medium on the print hole.

REFERENCES:
patent: 4948279 (1990-08-01), Ikoma et al.
patent: 4960337 (1990-10-01), Kato et al.
patent: 5007751 (1991-04-01), Yamakawa
patent: 5087134 (1992-02-01), Tanuma et al.
patent: 5286123 (1994-02-01), Kusumi
patent: 5299873 (1994-04-01), Miebori

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