Printing machines

Details Printing machines Printing machines

1993-02-16

1994-12-13

Wiecking, David A.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

40012016, 400328, 400355, 400356, 400322, B41J 25304

Patent

active

053724402

ABSTRACT:
A printing machine wherein printing onto a substrate is effected by a first movement of a print head (1) downwardly into contact with the substrate and then by a second movement over the surface of the substrate while thermal printing elements within the print head (1) are selectively energized. The first movement is controlled by downward movement of a pair of rollers (6,7) operated by synchronized angular movement of a pair of eccentric shafts (8,9) one of which is freely mounted within each roller (6,7). The first and second movements are driven by a first and second stepper motor respectively. The rollers may be coupled by drive belts (4,5).

REFERENCES:
patent: 4874264 (1989-10-01), Suzuki et al.
patent: 5090829 (1992-02-01), Lee et al.
patent: 5158379 (1992-10-01), Moriya et al.

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