Browse Prior Art Database

COMBINATION TEAR BAR and ACCESS COVER for a PRINTER

IP.com Disclosure Number: IPCOM000039774D
Original Publication Date: 1987-Aug-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Myers, AC: AUTHOR

Abstract

The figure illustrates a combined cover and access door, where the door may be pushed against the platen to pinch and hold the paper just below a perforation for removal of a printed sheet from a continuous web. The figure is a cross-sectional view taken perpendicular to the paper path in a printer. The printing mechanism 1, such as a dot matrix print head located on one side of a sheet of paper 2, prints by reciprocating laterally across the surface of the paper. The paper is supported on the opposite side by a platen 3, which provides a smooth impacting surface. The paper may be single sheets or a continuous web having perforations 4 extending across the width of the paper to facilitate separation of individual sheets.

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COMBINATION TEAR BAR and ACCESS COVER for a PRINTER

The figure illustrates a combined cover and access door, where the door may be pushed against the platen to pinch and hold the paper just below a perforation for removal of a printed sheet from a continuous web. The figure is a cross- sectional view taken perpendicular to the paper path in a printer. The printing mechanism 1, such as a dot matrix print head located on one side of a sheet of paper 2, prints by reciprocating laterally across the surface of the paper. The paper is supported on the opposite side by a platen 3, which provides a smooth impacting surface. The paper may be single sheets or a continuous web having perforations 4 extending across the width of the paper to facilitate separation of individual sheets. The printing mechanism is housed within a cover 5 that provides a physical and safety shield, and also aids in defining the paper path. The cover is typically made of plastic and includes a door 6 that may be opened to obtain access to COMBINATION TEAR BAR AND ACCESS COVER FOR A PRINTER - Continued the paper path downstream of the platen. The cover includes integrally molded extension arms 7 which function as springs, with one end being located near the platen. The spring arms are typically located on opposite sides of the paper width. The access door 6 extends across the entire width of the paper, and has its lower end 6A pivotally attached to the spring arms
7. The upper end 6B of the access...