Browse Prior Art Database

Duplexing Copier

IP.com Disclosure Number: IPCOM000051513D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue

IBM

Related People

Authors:
Overton, GB Windham, JE [+details]

Abstract

Paper is neatly stacked in a copier's duplex tray by the use of a pair of flexible rubber paddles. U. S. Patent 4,175,741 describes such a copier wherein, with reference to Fig. 1, paper bearing side-one copy is stacked into duplex tray 10, one sheet at a time, as the sheets serially enter the tray by passing through the unobstructed space between friction feed assembly 11 and combing wheel feed assembly 12. At the time of feed-in, assembly 12 is elevated; i.e., it is elevated by rotating counterclockwise about pivot shaft 13. In order for reliable feed-out to occur by way of assemblies 12 and 11 and sheet guides 14 and 15 for side-two copying, the side-one copies must reside within tray 10 in a neat stack which is corner-registered to the 90 degrees corner defined by tray walls 16 and 17.