Browse Prior Art Database

Copier Duplexing using Roll Transfer

IP.com Disclosure Number: IPCOM000044838D
Original Publication Date: 1984-Nov-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Jenkins, CS: AUTHOR

Abstract

This article describes the use of an offset roller to move a copier toner image to a transfer roller for simultaneously duplexing a copy sheet. This permits full speed duplexing without requiring reversals or folding over of the copy sheet.

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This is the abbreviated version, containing approximately 100% of the total text.

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Copier Duplexing using Roll Transfer

This article describes the use of an offset roller to move a copier toner image to a transfer roller for simultaneously duplexing a copy sheet. This permits full speed duplexing without requiring reversals or folding over of the copy sheet.

As shown in Fig. 1, an offset roller A is moved into contact with the photoconductor B which carries a developed, i.e., toner image. The roller A transfers the toner image onto a transfer roller C. When the transfer is complete, the roller A is moved away from contact with the photoconductor B and the transfer roller C as shown in Fig. 2.

The image to be copied on the other side of the copy sheet is exposed and developed on the photoconductor B. As the copy sheet moves into position to transfer the image from the photoconductor B, the transfer roller C is moved downward as shown in Fig. 3 to transfer the image onto the opposite side of the copy sheet. When the images have been transferred to the copy sheet, it is passed through a fuser or other device to fix the image onto the copy sheet.

The use of the offset roller orients the copied image correctly and eliminates the need to reverse the image process for side one to obtain right reading images on both sides of the finished copy.

Disclosed anonymously

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