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Gutter for Synchronized Ink Jet Printing

IP.com Disclosure Number: IPCOM000079616D
Original Publication Date: 1973-Aug-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Joseph, DL: AUTHOR [+3]

Abstract

An ink gutter for ink jet printing apparatus may be constructed as shown in the drawing, in which the dot-dash lines 3 represent the boundaries of a rectangular solid of suitable material, for example, transparent plastic.

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Gutter for Synchronized Ink Jet Printing

An ink gutter for ink jet printing apparatus may be constructed as shown in the drawing, in which the dot-dash lines 3 represent the boundaries of a rectangular solid of suitable material, for example, transparent plastic.

A receiving funnel or aperture 5, generally pyramidal in shape, is provided in the top surface at one end of the block. The apex of this funnel communicates with a first and a second ink receiving chamber 7 and 9, respectively, which, at their connection with the funnel, are separated by a very thin wall or septum, so that an ink jet stream entering the funnel will fall within one or the other of the receiving chambers, with very little overlap between the amounts received in each chamber.

The chambers 7 and 9, which are rectangular in cross section at their openings, can remain rectangular in cross section or can be transformed to passages of circular cross section, as shown, as they curve and pass toward the other end of the body block. These continuations of receivers 7 and 9 are designated 7' and 9', respectively. These passages are joined at the far end of the block to form a single outlet or drain passage 11, from which the recovered ink is returned to the source or other receiver.

To detect the presence of ink flow in the passages, two sets of electrodes are provided, one pair for each channel. Thus electrodes 13 and 15 are associated with passage 7', and electrodes 17 and 19 are associated with p...