Eastman-kodak Company

Eatsman Kodak Company

Stephen J Farnand

Chung-Hui Kuo

Stacy M Munechika

Yee S Ng

Hwai-Tzuu Tai

Eric Karl Zeise

Thomas Allen Henderson

Cumar Sreekumar

Shawn Edward O'Hara

Electrophotographic (EP) streaking compensation is performed. A tonescale is measured for each column and a per-column gain computed to compensate for variations. An adjustment tonescale is determined and a per-column adjustment-tonescale gain computed to correct for remaining error after the per-column gain is applied. The two corrections are used together to provide improved compensation quality.

Electrophotographic printing with column-dependent tonescale adjustment

One or more printers or printing systems are connected to a scanning device. Each printer includes one or more color modules that are used during a printing operation. A printer prints a target for each color module or color channel. The printed targets are then scanned by the scanning device. The printed targets may be rotated to any angle and then scanned by the scanning device. The scanned raster data is processed by a controller to detect non-uniformities in at least one density image and to generate one or more correction profiles for the printer. When an image is to be printed, one or more controllers receive the image data and use the one or more correction profiles to correct or compensate for the non-uniformities during the exposure process.

Adaptive exposure printing and printing system

An optical assembly for an LED printhead includes a longitudinally extending linear lens array. A stiffener bar is attached to the lens array along a substantial longitudinal dimension of the lens array. A lens mount base plate supports the stiffener bar and a pin and slot connection is provided for permitting thermally induced dimensional change in two dimensions of the stiffener bar relative to the lens mount base plate.

Mount for linear lens array

Growing community of inventors

Fairport, NY, United States of America

Stephen J Farnand