Thermal printer apparatus

Details Thermal printer apparatus Thermal printer apparatus

1998-07-28

1999-10-12

Burr, Edgar

Typewriting machines

For typing on reverse surface of record-medium

400 58, 400 59, 101 9341, 101 9342, B41J 360

Patent

active

059645415

ABSTRACT:
A sheet to be printed on can be transported along a sheet feed path to a printing position. The sheet feed path extends along a first direction. A thermal print head is located on one side of the sheet feed path and is provided for printing onto a sheet which has been transported to the printing position along the sheet feed path. A print platen is located on an opposite side of the sheet feed path and is provided for printing onto a sheet which has been transported to the printing position along the sheet feed path. A spring mechanism is provided for biasing the head and the platen towards each other to contact the sides of a sheet in the printing position to allow printing on the sheet in the printing position. A drive mechanism is provided for moving the head and the platen in a second direction which is transverse to the first direction to allow printing on a sheet in the printing position to occur while the head and the platen are contacting the sheet in the printing position. A cam mechanism is provided for moving the head and the platen away from each other to move the head and the platen out of contact with a sheet in the printing position after printing on the sheet in the printing position has occurred. The drive mechanism and the cam mechanism cooperate to move the head and the platen back to their initial positions when the head and the platen are moved away from each other and out of contact with a sheet in the printing position to allow another printing to occur.

REFERENCES:
patent: 3810192 (1974-05-01), Okabe
patent: 4560292 (1985-12-01), Takahashi
patent: 4815871 (1989-03-01), McGourty et al.
patent: 4818126 (1989-04-01), Brooks et al.
patent: 4952084 (1990-08-01), Maruyama
patent: 5071266 (1991-12-01), Harada et al.
patent: 5118208 (1992-06-01), Kitahara et al.
patent: 5137378 (1992-08-01), Satoh
patent: 5265966 (1993-11-01), Schmidt
patent: 5445460 (1995-08-01), Nakajima
patent: 5555009 (1996-09-01), Hevenor et al.

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