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US 4,358,795 AGranted
Graphic scanning and printing device
OwnerGiovanni Cagnassoinventor
Life of this patent
Estimating the term…
Abstract
A graphic scanning and printing device comprising a scanning element having a plurality of metal bars arranged in series inclined at 10.degree. and movable into engagement with a graphic sign to be reproduced, written in electrically conductive ink, to produce an electrical pulse fed to a solenoid whose core bar prints a dot, through an ink ribbon or the like, the several core bars arranged in the same fashion as said scanning metal bars producing an exact reproduction of the graphic sign.
Claims3
A graphic scanning and printing device comprising
- a scanning element having a plurality of metal bars arranged for vertical sliding movement in series inclined at about 10.degree. in holes in a horizontal retaining member and slidable through holes in a coextensive graphite plate into engagement with a graphic sign to be reproduced, said graphic sign being written in electrically conductive ink to make electrical contact with said metal bars when contacted thereby;
- means including microcontacts arranged above and coextensive with said horizontal retaining member;
- means for making electrical contact between said vertically slidable metal bars and said microcontacts during vertical upward movement of said metal bars;
- a printing element having microcontacts electrically connected to said microcontacts of said scanning element and including a plurality of solenoids each having a vertically movable core bar, said solenoids corresponding in number and arrangement to said vertically movable metal bars of said scanning element, said solenoids being mounted in a pair of parallel horizontal frame members;
- a horizontal guide member arranged below and coextensive with said frame members;
- resilient means between said horizontal guide member and said vertically movable solenoid core bars to normally hold the latter in a retracted position from a sheet of printing paper adapted to be placed below said horizontal guide member with the interposition of copying sheet material;
- said solenoid core bars, when energized by contact of said vertically slidable metal bars of said scanning element with said electrically conductive graphic sign to be reproduced, being arranged to move toward said printing paper to trace a dot thereon, the plurality of dots thus produced by said plurality of solenoid core bars forming an exact reproduction of said graphic sign.
4 more elements
Dependencies are inferred from the claim text.