Xerox Corporation

Michael A Wiegand

David Plakosh

Norman E Wright

Richard J Eddy

Mark A Smith

Arindam Das

Douglas F Sundquist

Wilbert D Douglas

Todd R Henderson

Dragana Pavlovic

Chiranjib Basu

Ammar T Degani

Michael C Lacagnina

Timothy D Uetz

Frederic J Stann

Juan A Romano

Albert L O'Neil, Iii

Steven E Chen

Natasha A Gitany-Alonso

Brian Wilson

According to exemplary methods, a print job is received into a computerized device that includes a marking device. The print job specifies an imposition template defining multiple logical pages for a single sheet of print media according to an electronic document. The print job attributes also contain a first print colorant order and a different second print colorant order. Groups of logical pages are defined for each print colorant order, and buffers are created in which raster data associated with each group of logical pages are merged and untouched pixels are marked as negative pixels. The information from each buffer is printed on a single sheet of print media. Following printing of each buffer, the sheet of print media is returned to the marking device, so that information from the next buffer can be printed on the same side of the sheet of print media, using the marking device.

Partitioning raster images for multiple print colorant orders

The disclosed book production system and method allow a book block and flexible book cover for that book block to be printed in the same print job immediately prior to binding. Specifically, a user-selection indicates that a book print job contains both the book block and the cover. Raster image processing is performed to produce raster images based on all page descriptions in the print job. The raster images are sorted by size to identify first raster images for the book block pages and to identify at least one second raster image, which is more than twice as large as any of the first raster images, for the cover. The pages for the book block and the cover can be printed on first print media sheets and on a second larger print media sheet, respectively. Then, the cover can be bound to the book block by an in-line bookbinder.

Book production system, method and program storage medium

An improvement in a finishing system that eliminates 'cut and try' by a user in trying to place staples in copy sheet sets in a desired position includes using input media orientation and the user's Finishing Selection to determine stapling position on output copy sheets.

Finishing system

A system for compensating for a calibration drift in an image output device includes a user input means for specifying an output medium. An image output device controller converts original image data to final image data used by the image output device. The image output device produces a calibration image, as a function of an output medium, for a plurality of halftone screens capable of being produced by the image output device. A processor communicates with the controller. The processor calculates a plurality of candidate tone reproduction curve sets for the specified output medium. Each of the sets corresponds to one of the plurality of halftone screens. The candidate tone reproduction curve sets are accepted for compensating for a calibration drift in the image output device.

Increased temporal flexibility when performing/applying/reverting calibration for a printer output device

A method of controlling paper stock fault recovery in an image reproduction system for producing a print job from electronic data in accordance with job requirements calling for a desired stock having one or more selected stock attributes, the system including an interactive user interface enabling a system user to input operating instructions to the system. A dialog is thereby provided in which the operator may query any stock tray and get a listing of those stock tray attributes which are mismatched with the print job desired stock attributes.

Interactive required stock fault recovery methodology

In a real-time printing system, in which large blocks of digital data corresponding to page images must be located in a memory via a translation table and accessed from the memory within a very narrow time frame, the memory-management internal program of an operating system is overridden by external instructions which lock the translation table in memory.

Real-time image data access from virtual memory in a digital printing

A high-volume digital print service has a plurality of independent and simultaneously-operable decomposers which each output decomposed image data to a common buffer. The decomposed data can be compressed for relatively long-term retention in the buffer, by means of a compression element. All of the decomposers and the compression element are operated by a central CPU facility. A control system, sensitive to the amount of data in the buffer at a given time, apportions CPU cycles among the decomposers and compression element for optimization of the entire print service. The control system can also command printing hardware to skip pitches on an imaging surface therein, in order to reduce demand for decomposed data.

System for balancing CPU demands in a high-volume print server

A digital printing system includes a plurality of decomposers which operate simultaneously and independently. Each decomposer outputs page images of decomposed data at essentially random times. The page images from the decomposers are retained in a buffer until requested by a marker which controls the printer hardware. A buffer manager records where in the buffer each page image is stored, and a stream handle is assigned to every set of page images intended to form a multi-page document. When the marker requests a particular set of page images for printing, the marker invokes a stream handle. The buffer manager, receiving the stream handle, retrieves the necessary page images from recorded locations in the buffer.

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Webster, NY, United States of America

Michael A Wiegand