Browse Prior Art Database

Low Cost Printer

IP.com Disclosure Number: IPCOM000088920D
Original Publication Date: 1977-Aug-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Markewycz, Z: AUTHOR

Abstract

The apparatus of the drawing prints on a paper 2 that is held on a sector-shaped platen 3. The paper is located against left edge guides 4, and it is held by an adjustable bar 5 along its upper edge and by a fixed bar 6 along its lower edge. The adjustable upper bar 5 can be relocated at incremented positions for items of standard size, such as postal cards.

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Low Cost Printer

The apparatus of the drawing prints on a paper 2 that is held on a sector- shaped platen 3. The paper is located against left edge guides 4, and it is held by an adjustable bar 5 along its upper edge and by a fixed bar 6 along its lower edge. The adjustable upper bar 5 can be relocated at incremented positions for items of standard size, such as postal cards.

The platen is mounted to be rotated with a drive mechanism 7 and a thumb wheel 15 that is partially shown extending through an opening 9 in the cover 10 of the printer (partially shown). The platen is manually rotated counter clockwise to position a selected starting line of the paper 2 under a print head 8. Mechanism 7 may have an electrical solenoid drive for rotating the platen clockwise for line spacing as printing proceeds, or drive mechanism 7 may have a spring that is wound by the operation of manually rotating the platen to the position of the first line of printing.

The print head is mounted on a threaded shaft 11 and a guide shaft 12, and is carried across a line of print as shaft 11 is rotated in increments by a stepping motor 13. The shaft 11, the stepping motor 13 and a coupling 14 are shown exploded, as the dashed line indicates.

Electrical signals are applied to stepping motor 13, print head 8 and to drive mechanism 7 by a keyboard (not shown) or other data source.

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