Hewlett-packard Development Company, L.P.

John Harris

Bradley R Larson

Mary T Prenn

Eugene A Roylance

Scott C Clouthier

Richard W Hernandez

Marc L Warner

An apparatus and methods for processing image data in which an image pipeline serially processes columnar regions of a multi-row strip of the image data.

Processing image data strips in columnar regions

An apparatus and methods for processing image data in multi-row strips to generate print data for colorizers of a printer.

Processing image data strips

One embodiment of the invention is directed to a printer that is configured to interleave color plane data. The interleaved data is compressed, thereby forming compressed data having runs, seedrow copies and literals. In the compression process, commands are buffered to enable independent and simultaneous operation of a run module, a seedrow copy module and a literal module used in forming the compressed data.

Hardware implemented loss-less page data compressor/decompressor

The system, methods and hardware described herein relate to processing raster data on an EP (electrophotographic) process printing device. A hardware ASIC supports multiple EP print engine configurations through a common delay window block that presents a variable two-dimensional view of raster data formatted in a consistent manner that is compatible for processing by various enhancement blocks. Benefits of the disclosed system, methods and hardware include decreased development costs for EP printers due to a reduced need to design, test, and manufacture different ASICs for numerous EP print engine configurations.

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Boise, ID, United States of America

John Harris