Browse Prior Art Database

DUPLEX PHOTOCOPIER

IP.com Disclosure Number: IPCOM000023867D
Original Publication Date: 1979-Feb-28
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 239K

Publishing Venue

Xerox Disclosure Journal

Abstract

A photocopier having automatic duplex copying capability in which the copy paper is fed short edge first so that the copy paper must be transported from the transfer nip 1 (at which the developed image is transferred to the copy paper from the photosensitive surface P) after simplex copying, inverted and returned to the nip retaining the same load edge.

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XEROX DISCLOSURE JOURNAL

DUPLEX PHOTOCOPIER

E.R.Brooke
I. C. Brown

Proposed Classification
U.S. CL 355/24 Tnt. Cl, G03b 27/32

A photocopier having automatic duplex copying capability in which the copy paper

is fed short edge first so that the copy paper must be transported from the transfer nip 1 (at which the developed image is transferred to the copy paper from the photosensitive surface P) after simplex copying, inverted and returned to the nip retaining the same load edge.

After side I is transferred

           6 the copy paper is transported away from the transfer nip 1 and rotated through 180 on transport 2 onto the underside of vacuum transport 3. At this point the vacuum is released, or alternatively the copy is forced off electro~mechanically,onto transport 4. Transport 4 moves the paper sideways a~ right angles to its previous direction of feed and also rotates the paper through 180

about its long axis and drops the copy into buffer tray 5. The document on the platen is changed at this point (or after successive simplexed copies of the same original are fed into the buffer tray). Copies are then fed out of the tray

separately via a bottom feeder 6 including nudger belt 6a, to offer the copies into the feeder nip, and returned to the transfer nip I via vacuum transports 7 and 8. After side 2 has been transferred, the copy sheet is ejected.

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6

Volume 4 Number 1 3anuary/February 1979 Ill

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