Browse Prior Art Database

Ink Jet Gutters

IP.com Disclosure Number: IPCOM000085716D
Original Publication Date: 1976-May-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Fugate, TV: AUTHOR

Abstract

Gutters are required in pressurized ink jet systems wherein drops are selectively deflected from an initial path. In some systems the deflected drops are used for recording purposes and undeflected drops are guttered, and in other systems the deflected drops are guttered. In either system it is important that the guttered drops do not splatter or form mist.

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Ink Jet Gutters

Gutters are required in pressurized ink jet systems wherein drops are selectively deflected from an initial path. In some systems the deflected drops are used for recording purposes and undeflected drops are guttered, and in other systems the deflected drops are guttered. In either system it is important that the guttered drops do not splatter or form mist.

The illustrated ink jet gutters are specifically arranged around the common concept of a slot transverse to the direction taken by the stream (or by multiple parallel streams) of drops.

In the embodiments of Figs. 1 and 2, the slot 10 is in a solid gutter 11. When a transverse slot is used in a solid gutter, the objectives are: (1) to decelerate the guttered drops 12 at a slow enough rate so as to minimize impact splatter, and
(2) to have any resultant misting occur inside rather than outside the gutter 11. Ideally, the slot profile should be tailored so as to be tangent to the anticipated trajectory of the guttered drops. This is not absolutely necessary, however, because as the impact incidence angle tends toward 0 degrees, the amount of mist generated will gradually decrease.

Two methods of using a slot 10 in a solid gutter 11 are shown in section view in Figs. 1 and 2. The implementation shown in Fig. 1 will require more drop deflection than that in Fig. 2; but the concept is the same, i.e., drop deceleration and misting occurs inside the gutter 11 where an applied vacuum 13 can prevent esc...