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Browse Prior Art Database

Scanning Mechanism for Printer

IP.com Disclosure Number: IPCOM000078276D
Original Publication Date: 1972-Dec-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 73K

Publishing Venue

IBM

Related People

Drew, RS: AUTHOR [+2]

Abstract

When large numbers of similar labels are prepared on a printer for subsequent affixing to merchandise, it is desirable that the labels be checked for correctness as soon as possible after preparation to prevent large quantities of erroneous labels from being distributed.

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At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 65% of the total text.

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Scanning Mechanism for Printer

When large numbers of similar labels are prepared on a printer for subsequent affixing to merchandise, it is desirable that the labels be checked for correctness as soon as possible after preparation to prevent large quantities of erroneous labels from being distributed.

A scanning mechanism is, therefore, arranged in juxtaposition to the printer 20, 21, 22, which can be of any type. When,a line of print has been completed, the paper is indexed in preparation for printing the next line, thus bringing the printed indicia in registration with the scanning position.

The scanning mechanism includes a support 25 which supports a member 26 having a plurality of spaced parallel slits 27, which are arranged at an angle to the direction of travel of the paper, and at an angle to the orientation of the printed indicia. The spacing of the slits 27 is such that a plurality of slits will overlie a single indicia on a label. A scanning head 30 is mounted for movement across the paper on a lead screw 28 and guide 29. As lead screw 28 is rotated, head 30 is propelled from left to right and returns via a second set of screw threads, after reaching the right-hand end of screw 28. Head 30 has a single scanning aperture 31, and a light source and a-light-detecting transducer built in. Fixed slits 27 in member 26 and scanning aperture 31 in movable head 30 make an angle with each other so that at no point, depending on the minimum spacing between indici...