Method and system for printing gap adjustment

Details Method and system for printing gap adjustment Method and system for printing gap adjustment

1995-09-07

1996-11-05

Yan, Ren

Typewriting machines

Including adjustment for optimum printing plane

Responsive to thickness of record-medium

400 58, 400 59, B41J 25308

Patent

active

055709591

ABSTRACT:
In a printing machine such as an impact printer, the printing gap between a print head and a platen is appropriately adjusted to cope with a variety of paper sheets. For adjusting the printing gap, the platen (or print head) is moved toward the print head (or platen) to press a paper sheet and then the platen (or print head) is moved to an origin position. Thereafter, the platen (or print head) is moved closer to the print head (or platen) by an appropriate pressing distance obtained by subtracting an appropriate value for the printing gap from the distance between the pressing position and the origin position.

REFERENCES:
patent: 4990004 (1991-02-01), Kawahaia et al.
patent: 5360276 (1994-11-01), Petermann
patent: 5468076 (1995-11-01), Hitano et al.
patent: 5474392 (1995-12-01), Matsuoka

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