Xerox Corporation

Ronald W Bogert

David Mark Kerxhalli

Jonathan Byron Hunter

David R Kretschmann

Gregg A Bonikowski

Ana Perez Tooker

Nicholas Harrison Hainline

Steven G Service

Donald James Van Tyne

John A Strossman

Theodore Gram

Aaron M Sanders

An apparatus adapted for presenting a sheet of media to an image transfer structure. The apparatus includes a registration baffle positioned in an offset relationship relative to the image transfer structure and a pre-transfer baffle assembly including a first baffle oppositely disposed to a second baffle, the pre-transfer assembly generally forms an 'S' shape and is adapted for guiding the sheet of media from the registration baffle to the image transfer structure. The pre-transfer baffle assembly is arranged in a first position adapted for guiding the sheet of media toward the image transfer structure at an angle of less than ninety degrees, and the pre-transfer baffle automatically begins rotation to a second position as the sheet of media reaches a pre-determined position within a paper path.

Translating pre-transfer baffle for optimized performance

Methods and devices print markings on an item in a first printing pass, using intended locations for the markings, to produce initial printed marks. Such methods and devices further scan the item after the first printing pass to detect actual printed locations of the initial printed marks. These methods and devices also compare the actual printed locations to the intended locations to identify the printing registration variation. Thus, such methods and devices change the intended locations for the markings based on the printing registration variation to generate corrected locations for the markings; and then reprint the markings directly on the initial printed marks a second time on the item in a second printing pass using the corrected locations for the markings, using the marking device.

Scanning previous printing passes for registration of subsequent printing passes

A method including: displacing a plurality of sheets through a defined portion of a process path; generating, using an encoder, a first number of encoder pulses associated with displacing a first sheet from the plurality of sheets along the defined portion; applying first indicia to a first side of the first sheet; displacing the first sheet through the defined portion; generating, using the encoder, a second number of encoder pulses associated with displacing the first sheet along the defined portion; calculating, using a processor, a ratio including the first and second numbers; applying second indicia to the respective second side of the first sheet or third indicia to the respective first side of a second sheet from the plurality of sheets, or fourth indicia to the respective second side of the second sheet; and adjusting, using the processor, application of the second, third, or fourth indicia according to the ratio.

System and method for dynamic measurement of dimension change for a sheet

Systems and methods are described that facilitate correcting for paper process direction arrival errors during a print job in a marker module of a print engine. Paper sheet arrival time is determined at a first registration point in a print engine or marker module thereof, and an average arrival time is compared to an expected arrival time to determine whether the pages are arriving on time, early, or late. The arrival time error is used to generate or look up a correction factor, which is added to an expected arrival time at a second registration point in the marker module or print engine to generate an updated expected arrival time. Print engine control parameters (e.g., sheet feeder timing, toner application, paper path speed, etc.) are adjusted according to the updated expected arrival time at the second registration point.

Adaptive scheduler that corrects for paper process directional arrival errors to print engine registration subsystem

According to aspects of the embodiments, there is provided a printing system that includes first and second marking devices for applying images to print media. A first fusing module associated with the first marking device for applying a primary fusing treatment to the images applied to print media by the first marking device. A second fusing module which receives printed media from the first and second marking devices, the secondary fusing module including a fusing device that applies a fusing treatment to the images applied to the printed media. A printing controller having a scheduler for processing print jobs in the first and second marking devices based on fusing requirements of the print media.

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Webster, NY, United States of America

Ronald W Bogert