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Ink "Fog" Collector and Method for Protecting Charged Deflection Plates From "Fog" Contamination

IP.com Disclosure Number: IPCOM000079633D
Original Publication Date: 1973-Aug-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Cialone, DR: AUTHOR [+2]

Abstract

The device collects ink fog and thus prevents it from contaminating an ink jet printer in which it is incorporated. A variation eliminates the affinity of the ink fog for the charged deflection plates of an ink jet printer.

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Ink "Fog" Collector and Method for Protecting Charged Deflection Plates From "Fog" Contamination

The device collects ink fog and thus prevents it from contaminating an ink jet printer in which it is incorporated. A variation eliminates the affinity of the ink fog for the charged deflection plates of an ink jet printer.

In Figs. 1a and 1b, two electrically conductive charged collector plates 1 and 2 are arranged in such a configuration, with respect to the ink streams 11 and impact point 4 on platen 5 of an ink jet printer, that the fog generated when an ink drop impacts the paper is collected on the charged plates. This prevents the contamination of functional parts of the machine and allows the collected fog to be more easily removed from the machine. The plates 1 and 2 are supported by cantilever members 6 and 7, Fig. 2, which also shows a method of removing ink from the collector plates. It includes a gutter 8 arranged intermediate plates 1 and 2. An ink well 9 is built into a top cover 10 of an ink reservoir, the well having holes,, not shown, in its bottom surface allowing collected fog from plates 1 and 2 to drip into the ink reservoir.

The structures of Figs. 3a and 3b include a grounded metal shield 12 surrounding the deflection plate assembly 13. This shield eliminates the field outside of the shield, thus causing the charged ink droplets to lose their attraction for the deflection plates. Any ink settling on the deflection plates now will be purely rand...