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Encoding Optically Scannable Bar Code Into Printwheel Cartridge

IP.com Disclosure Number: IPCOM000044185D
Original Publication Date: 1984-Nov-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Allen, WH: AUTHOR [+4]

Abstract

This article relates to printwheel or daisy wheel types of impact printers wherein many different fonts respectively mounted within printwheel cartridges are changed either manually or automatically. A verification process is required in order to insure that the proper printwheel has been put into place. A simple expedient for accomplishing that is shown in the figure. Encoded in the printwheel cartridge is a line of optical indicia identifying the particular printwheel cartridge. Accordingly, once the printwheel cartridge is mounted in the printer, indicia may be read optically in order to verify that the correct printwheel cartridge is in place. Alternatively, the indicia may be positioned vertically, as shown.

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Encoding Optically Scannable Bar Code Into Printwheel Cartridge

This article relates to printwheel or daisy wheel types of impact printers wherein many different fonts respectively mounted within printwheel cartridges are changed either manually or automatically. A verification process is required in order to insure that the proper printwheel has been put into place. A simple expedient for accomplishing that is shown in the figure. Encoded in the printwheel cartridge is a line of optical indicia identifying the particular printwheel cartridge. Accordingly, once the printwheel cartridge is mounted in the printer, indicia may be read optically in order to verify that the correct printwheel cartridge is in place. Alternatively, the indicia may be positioned vertically, as shown. In such a position, the indicia could be read by a simple single photocell whenever there is simple carrier movement.

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