Apparatus for releasing paper clamp on platen roller

Details Apparatus for releasing paper clamp on platen roller Apparatus for releasing paper clamp on platen roller

1993-04-27

1995-07-18

Wiecking, David A.

Typewriting machines

Platen or platen-moving mechanism

For movement of platen other than for line-spacing

40012404, 101409, B41J 1102, B41F 2104

Patent

active

054335442

ABSTRACT:
A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recording paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recording paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transfferring images onto the recording paper; a paper feeding rollers for feeding the recording paper from the paper cassette to the clamper; a paper discharging rollers for discharging the recording paper upon the completion of the transfer of images thereto; and an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper in a second position.

REFERENCES:
patent: 3906512 (1975-09-01), Farlow
patent: 3918707 (1975-11-01), Villemer et al.
patent: 4073489 (1978-02-01), Idstein et al.
patent: 4259695 (1981-03-01), Nakano
patent: 4358100 (1982-11-01), Muller
patent: 4390176 (1983-06-01), Kato
patent: 4679953 (1987-07-01), Sone et al.
patent: 4839674 (1989-06-01), Hanagata et al.
patent: 4900008 (1990-02-01), Ficter et al.
patent: 4909649 (1990-03-01), Okunomiya

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