Printing – Selective or progressive – Bed and platen machines
Patent
1974-05-20
1978-10-31
Mancene, Louis G.
Printing
Selective or progressive
Bed and platen machines
400 70, 400146, B41J 122, B41J 132
Patent
active
041227697
ABSTRACT:
A control arrangement for a belt printer having characters arranged in successive series on an endless belt and passed continuously in front of a print support and hammers adapted to be actuated by a control device. A recording store is connected to a calculating unit and records information relating to each character to be printed along a line on the print support. A scan register contains information relating to the coincidences between the characters and the striking members at any given time. Information corresponding to the condition when a predetermined character is to be struck by a given hammer in the course of a given scan, is stored in a storage member along with information indicative of whether or not the predetermined character is repeated in the series of characters. A first comparator provides an output signal to the control device for actuation thereof when a comparison between the output of the scan register and one output of the storage member indicates an identity between information in the storage member. A second comparator provides an output for actuating the control device in response to a second comparison between an output from the first comparator and an output from a reference device containing for each of the various series of characters, information relating to the distance of the different points at which a repeated character is situated. The output of the second comparator is applied to the striker control through a dual input gate, the other input of which is taken from a second output of the storage member.
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Couture Serge A. E.
Sery Jacques
Compagnie Honeywell Bull (Societe Anonyme)
Hirsch Paul J.
Mancene Louis G.
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