Printing – Bed-and-platen machines
Patent
1976-04-26
1979-07-31
Coven, Edward M.
Printing
Bed-and-platen machines
101316, 101 9305, B41F 100
Patent
active
041626516
ABSTRACT:
Disclosed is a document printer of the type suitable for imprinting messages upon individual documents fed into the apparatus (e.g., bank checks). The apparatus includes an internal printing station disposed along a document feed path. The path includes a feed slot in an exterior wall of the apparatus. The printing station includes both impact printer means and document drive means, the latter operative to move the document along the document path positioning different parts of the document adjacent the impact printer means for the printing of multiple lines of information, where necessary. Both the impact printer means and the document drive means comprise first and second subunits which are positioned, respectively, on opposite sides of a document at the printing station. In particular, the drive means comprise upper and lower rollers, at least one of which is driven, which are engagable with opposite surfaces of the document. The impact printer means comprise an impact print head on one side of the document and a rigid platen on the other side. The platen and the upper driven roller are supported on a first frame above the document path, while the print head and the lower roller are supported on a second frame and positioned to engage the lower surface of a document on the feed path.
REFERENCES:
patent: 3119328 (1964-01-01), Pittman et al.
patent: 3389658 (1968-06-01), Matthew
patent: 3718244 (1973-02-01), Bukowski et al.
patent: 3771443 (1973-11-01), Georghallis
patent: 3837461 (1974-09-01), Waibel
patent: 3912068 (1975-10-01), Kwan et al.
patent: 3923135 (1975-12-01), Holman et al.
Concord Computing Corporation
Coven Edward M.
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