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Document Registration Ribbon Cartridge

IP.com Disclosure Number: IPCOM000049933D
Original Publication Date: 1982-Aug-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Schall, TE: AUTHOR

Abstract

In face-down printing where the printer operator may not see the line of print, it is necessary to devise some means of registering a document with the start of the first printing line appropriately positioned between the print head and the platen with the first printing area aligned as it should be. A typical approach is to provide a recess in the document feed bed in which the operator may position a document to be printed upon and against which it will automatically register the top of the document at a position unseen from the operator but in proper alignment with the print head and platen.

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Document Registration Ribbon Cartridge

In face-down printing where the printer operator may not see the line of print, it is necessary to devise some means of registering a document with the start of the first printing line appropriately positioned between the print head and the platen with the first printing area aligned as it should be. A typical approach is to provide a recess in the document feed bed in which the operator may position a document to be printed upon and against which it will automatically register the top of the document at a position unseen from the operator but in proper alignment with the print head and platen.

In reduced space and cost constraint, it has been found that the ribbon cartridge for feeding the inking medium can be modified and positioned such that it forms a portion of the feed bed for the document and is provided with the document registration recess.

The figure shows the design in a horizontal cross-sectional schematic view. Printer 1 has a print head 2 and a platen 3 and a feed bed 3A, as shown. A document to be printed upon (not shown) is inserted by the operator with the front edge of the document being obscured by the cover of printer 1. The document is fed between feed rollers 4 and 5 which are driven by document feed motor 6 by means of a belt or gearing shown as belt 7. A reciprocating carriage 8 driven by motor 9 by means of gears or pulley arrangement 10 moves the print head 2 back and forth on guideways 14, shown in...