Abstract Upon one or both surfaces of an accelerating electrode having a center aperture is overlaid and fixed concentrically a disk member or members each having a center aperture tapered so as to converge toward the accelerating electrode. Unnecessary ink attached to the accelerating electrode may be sucked through the interface or interfaces between the disk member or members and the accelerating electrode under capillary action and ink attached to the disk members may readily flow toward the interfaces along the tapered peripheral surfaces or walls of the center apertures of the disk members. Grooves may be formed in the surfaces of the disk members in contact with the accelerating electrode so as to facilitate the collection and discharge of unnecessary ink sucked into the interfaces under capillary action. Removal of ink attached to the accelerating electrode may be much facilitated, thus assuring the stable operation of the accelerating electrode. In addition, fabrication of the accelerating electrode structure may be much facilitated and simplified yet with a higher degree of accuracy.
An accelerating electrode structure for ink jet recording devices characterized in that upon one surface of a centerapertured thin accelerating electrode is overlaid concentrically and securely fixed a first member having a center aperture whose diameter is larger than said center aperture of said accelerating electrode and which is tapered so as to converge toward said accelerating electrode, whereby the unnecessary ink attached may be sucked into the interface between said first member and said accelerating electrode.
Claim 2
Dependent Claim
77 words
An accelerating electrode structure for ink jet recording devices characterized in that upon one surface of a centerapertured thin accelerating electrode is overlaid concentrically and securely fixed a first member having a center aperture whose diameter is larger than said center aperture of said accelerating electrode and which is tapered so as to converge toward said accelerating electrode, whereby the unnecessary ink attached may be sucked into the interface between said first member and said accelerating electrode.
Claim 3
Dependent Claim
132 words
An accelerating electrode structure for ink jet recording devices characterized in that upon one surface of a center-apertured thin accelerating electrode is overlaid concentrically and securely fixed a first member having a center aperture whose diameter is larger than said center aperture of said accelerating electrode and which is tapered so as to converge toward said accelerating electrode, and upon the other surface of said thin accelerating electrode is overlaid concentrically and securely fixed a second member having a center aperture whose diameter is larger than that of said center aperture of said accelerating electrode and which is tapered to converge toward said accelerating electrode, whereby unnecessary ink attached may be sucked into the interfaces between said first and second members on one hand and said accelerating electrode on the other hand.
Claim 4
Dependent Claim
132 words
An accelerating electrode structure for ink jet recording devices characterized in that upon one surface of a center-apertured thin accelerating electrode is overlaid concentrically and securely fixed a first member having a center aperture whose diameter is larger than said center aperture of said accelerating electrode and which is tapered so as to converge toward said accelerating electrode, and upon the other surface of said thin accelerating electrode is overlaid concentrically and securely fixed a second member having a center aperture whose diameter is larger than that of said center aperture of said accelerating electrode and which is tapered to converge toward said accelerating electrode, whereby unnecessary ink attached may be sucked into the interfaces between said first and second members on one hand and said accelerating electrode on the other hand.
Claim 5
Dependent Claim
33 words
An accelerating electrode structure according to claim 1 wherein grooves for facilitating thE suction of said unnecessary ink are formed in one surface of said first member in contact with said accelerating electrode.
Claim 6
Dependent Claim
35 words
An accelerating electrode structure according to claim 2 wherein grooves for facilitating the suction of said unnecessary ink are formed in one surfaces of said first and second members in contact with said accelerating electrode.