Thomas A Knapp

US Patent:

50578529, Oct 15, 1991

Filed:

Dec 18, 1989

Appl. No.:

7/451852

Inventors:

Joseph F. Formica - Rochester NY
William E. Hunt - Rochester NY
Thomas R. Knapp - Penfield NY
Thomas L. Kowalczyk - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41J 2145
B41J 221

US Classification:

346 11

Abstract:

Apparatus and method of producing image edge enhancement in four-color printers. The true black color is aligned for printing between the cyan, magenta, and yellow colors. When a black edge is desired, process black and true black are both used to produce the pixels along the edge. Because the process and true black pixels are interleaved with each other along the edge, the effective resolution is doubled and the sharpness is enhanced along the edge.

US Patent:

51247607, Jun 23, 1992

Filed:

Jul 5, 1991

Appl. No.:

7/726444

Inventors:

Thomas R. Knapp - Penfield NY
Michael H. Parsons - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1500

US Classification:

355317

Abstract:

A method and apparatus for registering a sheet member with an indicia on the surface of a moving member which comprises means for driving a sheet member substantially tangentially of the moving member and between the moving member and a linear image sensor which is disposed adjacent the surface of the moving member. The linear image sensor senses the leading edge of the sheet member and, as the moving member is driven, the linear image sensor senses the passage of the indicia on the surface thereof as the member travels therepast. The distance between the indicia and the leading edge of the sheet member is sensed and an error signal is generated representative of the distance. The sheet member driving means is regulated so as to reduce the error signal and the sheet is attached to the moving member when the error signal is reduced to a predetermined value.