Browse Prior Art Database

Original Carrier for Copiers and the Like

IP.com Disclosure Number: IPCOM000045014D
Original Publication Date: 1983-Jan-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Gunnell, RW: AUTHOR

Abstract

A white leading edge is placed on transparent carriers for copiers to prevent a dark leading edge which tends to create copy sheet paper wraps.

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Original Carrier for Copiers and the Like

A white leading edge is placed on transparent carriers for copiers to prevent a dark leading edge which tends to create copy sheet paper wraps.

In copiers which include sheet feed covers pivotable to allow transport of books, awkward objects, or the like past a scan window, the use of the copier in the so-called book mode can result in an initial black stripe on the leading edge of the copy sheet. This stripe tends to create copy sheet paper wrap around the fuser roller, photoconductor drum or the like especially when lighter weight copy paper is used.

Frame 10 defines an upper surface of a copier and has a fixed scan window 11 over which documents for imaging, as through a fiber-optic bundle 12, are passed. Lamps 15 and 16 illuminate the document as it is driven across window 11 by drive rollers 20 and 21.

For single sheet feeding, idler rollers within a closable cover (not shown) engage the upper surfaces of rollers 20 and 21 to drive the sheets past scan window 11. With the single sheet feed cover raised to accommodate use of book copy carrier 25, the book is typically placed on lower surface 26 which has a leading edge portion 27 that is engaged by gate 28. An extended lip 30 extends over scan window 11, and the lower surface 31 is coated with a highly reflective coating such as white paint, white tape, etc. Thus as the scan movement is initiated when gate 28 is withdrawn, a white edge is presented to the leading edge...