Print gap adjusting device

Details Print gap adjusting device Print gap adjusting device

1994-06-24

1995-11-21

Yan, Ren

Typewriting machines

Including adjustment for optimum printing plane

By adjustment of carriage

400 55, 400 56, B41J 25308

Patent

active

054680760

ABSTRACT:
In forming a desired print gap between a sheet of paper fed on a platen and a print head by driving a moving mechanism for changing a space between the platen and the print head, a condition where the space between the platen and the print head becomes smaller than a predetermined value is detected, and in this case the space between the platen and the print head is increased by a driving portion for driving the moving mechanism. Accordingly, when a thin paper is used as the sheet of paper, cutting, wrinkling, etc. of the thin paper can be prevented.

REFERENCES:
patent: 4652153 (1987-03-01), Kotsuzumi et al.
patent: 4843338 (1989-06-01), Rasmussen et al.
patent: 5074685 (1991-12-01), Shimizu et al.
patent: 5156466 (1992-10-01), Inagaki et al.
patent: 5360276 (1994-11-01), Petermann

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