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Receipt paper reduction by overlapping multicolor printing

IP.com Disclosure Number: IPCOM000197126D
Publication Date: 2010-Jun-23
Document File: 1 page(s) / 87K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a solution to reduce the amount of paper required to print a receipt. Known solutions to this include using smaller font or thinner paper. Smaller font is harder to read and thinner paper is more difficult to drive through a printer's paper path.

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Receipt paper reduction by overlapping multicolor printing

The illustration below shows two examples of how adjacent print lines can be printed to overlap, with each print line being a contrasting color/shade to its neighbor. This technique takes advantage of a human brain's ability to distinguish between colors and to focus on one color at a time. As you read the receipts below, notice how the readability improves as you concentrate on one color/shade at a time.

A first POS receipt is simulated in the upper left of the illustration. It contains 22 RED/BLUE lines. At its right is an actual traditional black POS receipt. The magenta lines indicate the height of 22 lines in each format. Note that the RED/BLUE printing arrangement enables 22 lines to be printed in the space of 14 lines of the traditional black POS receipt. Thus, the overlapping of contrasting colored/shaded lines saves the paper needed to print 8 of 22 lines or enables a paper reduction of 36%. The same effect can be implemented with RED/GREEN or other combinations of colors, but primary colors probably work best.

An interesting aspect of the RED/BLUE arrangement is that half of the lines on the receipt are very visible if viewed through a red filter such as used in 3D movies. The other half of the lines are very visible if viewed through a blue filter. Use of 3 colors is likely to require the use of such filters to enable reading the receipt.

A second POS receipt is simulated in the lower left of t...