Browse Prior Art Database

AERODYNAMIC METHOD OF MIST CONTROL

IP.com Disclosure Number: IPCOM000025826D
Original Publication Date: 1988-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 90K

Publishing Venue

Xerox Disclosure Journal

Abstract

In a continuous stream-type ink jet printing system, mist is generated during the printing process as the ink droplets spatter upon impacting the printing surface. One method of controlling this mist is to allow it to collect on readily replaceable surfaces. However, in a high volume printing environment, this kind of passive mist control becomes too inefficient.

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'EROX A DISCLOSURE JOURNAL

AERODYNAMIC METHOD OF Proposed Classification MIST CONTROL U.S. C1.346/1.1
Paul
J. Kim Int. C1. Gold 9/00

TO BLOWER 1 FAN +

Volume 13 Number 3 May/June 1988 123

I

[This page contains 1 picture or other non-text object]

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AERODYNAMIC METHOD OF MIST CONTROL (Cont'd)

In a continuous stream-type ink jet printing system, mist is generated during the printing process as the ink droplets spatter upon impacting the printing surface. One method of controlling this mist is to allow it to collect on readily replaceable surfaces. However, in a high volume printing environment, this kind of passive mist control becomes too inefficient.

In the accompanying Figure a mist control device 10 is shown which will provide a recirculating air path represented by arrows 12 to direct mist particles into a controlled area. Specifically, this device consists of three functional sections A through C, identified in the Figure.

The device has a gutter 14 for collecting ink droplets 16 that are not to be printed, and a diffuser section A having a larger air entrance area 22 than the air exit area 24. Entrance 22 is just above the droplet trajectories for droplets impacting the printing surface 18, such as paper, that moves in the direction of arrow 20. One edge of an inclined baf'fle 26 forms exit 26 and divides the diffuser section A from the vacuum chamber 28. The side of the vacuum chamber confronting the moving printing surface 18 is a porous metal she...