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Browse Prior Art Database

Appearance Cover With Integral Paper Deflector

IP.com Disclosure Number: IPCOM000047795D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Barina, RM: AUTHOR [+2]

Abstract

In the illustrated thermal printing apparatus (Fig. 1), chemically treated paper is fed from supply roll 1, passes between print head 2 and platen 3 where it receives print impressions, and exits between an edge of appearance cover 4 and the top cover guide 5. The supply roll lies loosely in the tray 6. A special deflector 7 is required to counteract a tendency of the paper to curl around the platen and jam when the size of the supply roll approaches the size of the platen. The form and position of this deflector are shown more specifically in Fig. 2. In the Fig. 2 illustration, when the paper roll outside diameter 1 approaches the same size as the platen outside diameter 3, the paper has a tendency to curl around the platen. It also picks up a static charge after the printing operation 2, making the paper curl more.

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Appearance Cover With Integral Paper Deflector

In the illustrated thermal printing apparatus (Fig. 1), chemically treated paper is fed from supply roll 1, passes between print head 2 and platen 3 where it receives print impressions, and exits between an edge of appearance cover 4 and the top cover guide 5. The supply roll lies loosely in the tray 6. A special deflector 7 is required to counteract a tendency of the paper to curl around the platen and jam when the size of the supply roll approaches the size of the platen. The form and position of this deflector are shown more specifically in Fig. 2. In the Fig. 2 illustration, when the paper roll outside diameter 1 approaches the same size as the platen outside diameter 3, the paper has a tendency to curl around the platen. It also picks up a static charge after the printing operation 2, making the paper curl more. The deflector 7, that is positioned very closely to the platen 3, deflects the paper 1 when it approaches the appearance cover front edge, preventing the wrapping around condition.

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