Browse Prior Art Database

Printer-Based Automatic Pinfeed-Hole Strip Removal

IP.com Disclosure Number: IPCOM000036706D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Gaschke, PM: AUTHOR [+2]

Abstract

The pinfeed-hole strips on printer paper can be automatically removed by a modified pinfeed wheel guide.

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Printer-Based Automatic Pinfeed-Hole Strip Removal

The pinfeed-hole strips on printer paper can be automatically removed by a modified pinfeed wheel guide.

In the normal operation of printer sheets with pinfeed holes, the holes of the printer paper are held to the pinfeed wheel by a wheel guide. The guide keeps the sheet holes in contact with the feed wheel by positive radial pressure. However, the hole strips are left attached to the fed paper and have to be separated from the paper once the paper is removed from the printer. By incorporating the present modification to the pinfeed guide, the pinhole strip is automatically removed from the printer paper.

In the figure, two small angled ramps 1 and 2 have been added to the guide 3 to straddle the feed pins (not shown). These ramps force the pinfeed hole strips to follow the pinfeed-wheel while allowing the paper sheet to continue through the tension roller. This causes the pins on the pinfeed wheels to actually lift the pinfeed-hole strips away from the paper at a small angle with respect to the normal paper path. The separating action occurs at the pinfeed wheel, and the strips are automatically removed.

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