Lonnie L Robinson

US Patent:

D2643499, May 11, 1982

Filed:

Jul 3, 1980

Appl. No.:

6/165594

Inventors:

David A. Huliba - Kettering OH
Lonnie P. Robinson - Dayton OH

Assignee:

The Mead Corporation - Dayton OH

International Classification:

D1899

US Classification:

D18 22

US Patent:

42688361, May 19, 1981

Filed:

Oct 25, 1979

Appl. No.:

6/088328

Inventors:

David A. Huliba - Dayton OH
Lonnie P. Robinson - Dayton OH

Assignee:

The Mead Corporation - Dayton OH

International Classification:

G01D 1518

US Classification:

346 75

Abstract:

An ink jet printer for depositing ink drops from a plurality of jet drop streams on a print receiving medium includes a print head which generates a plurality of jet drop streams, such streams being positioned in at least one row. The drops are selectively charged and, thereafter, pass adjacent a deflection electrode which extends parallel to and to one side of the row of jet drop streams. A drop deflecting electrical potential is applied to the deflection electrode to produce a drop deflection field which directs the drops into print and catch trajectories. A catcher extends parallel to the row of jet drop streams and on the opposite side of the row from the deflection electrode. The catcher is positioned directly opposite the deflection electrode and receives drops in the catch trajectories, while permitting the drops in the print trajectories to strike the print receiving medium. The catcher includes a plurality of internal catcher cavities and defines a substantially vertical drop catching surface and a drop ingesting slot beneath the drop catching surface. Each of the cavities communicates with an associated portion of the drop ingesting slot.