Item responsive print inhibiting apparatus

Details Item responsive print inhibiting apparatus Item responsive print inhibiting apparatus

1977-10-21

1979-06-12

Kilgore, Robert M.

Registers

Systems controlled by data bearing records

Banking systems

235475, 235494, 3401463C, G06F 1530, G06K 900, G06K 300, G06K 1906

Patent

active

041577833

ABSTRACT:
In a modular high speed document printing system an apparatus within each printing module for inhibiting printing on a document passing therethrough when a valid print inhibiting code is sensed on the document. The apparatus employs a document lead edge sensor for sensing the presence of a document within the printing module and a print inhibiting code sensor for scanning preselected portions of a document for a print inhibiting code. A timing means is responsively coupled to the lead edge sensor for defining a time interval corresponding to the time interval wherein a valid print inhibiting code may be found. A retriggerable counter is responsively coupled to the print inhibiting code sensor for initiating counting in a memory means upon the sensing of a possible print inhibiting code. Means are provided for determining from the outputs of the counter and the timing mechanism whether a code sensed by the print inhibiting code sensor is a valid print inhibiting code.

REFERENCES:
patent: 2820907 (1958-01-01), Silverman
patent: 3804005 (1974-04-01), Burger
patent: 3949363 (1976-04-01), Holm
patent: 4027142 (1977-05-01), Paup

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