Xerox Corporation

Biruk Gossaye

Nancy R Kelly

David Lee Rasmussen

Aldwin A Roberts

Michele Donna Cleary

Benjamin W Paulson

Xing Li

Paul Michael Fromm

David Mark Kerxhalli

Victoria Lynn Warner

Terri A Clingerman

Lawrence Dee Dipzinski

Jamison Delorenzo

Jamison Charles DeLorenzo

Methods and devices determine the media properties of a sheet of media exiting a printing device. The methods and devices apply the media properties to a predetermined velocity equation to calculate a corresponding sheet exit velocity for the sheet of media that will optimize stack quality in a particular output tray. Then, the methods and devices change process controls sheet movement elements within a media path of the printing device to cause the sheet of media to exit the printing device at the sheet exit velocity.

Controlling exit velocity of printed sheets being stacked to optimize stack quality

A fluid delivery system is controlled to adjust a release fluid delivery rate to a rate that is predetermined to be effective for fusing a next sheet in a print job before the sheet arrives at a fusing nip. Predetermined rates and corresponding media types may be stored in memory. A controller controls the fluid release system for a print job in accordance with a print job schedule based on the predetermined fluid delivery rates.

Methods and systems for establishing steady state adjusted release fluid rate before sheet processing at a fusing nip

Embodiments herein process a plurality of jobs through a document handler (the jobs comprise one or more media sheets), scan the media sheets as the media sheets pass through the document handler and pass by a scanner, and maintain statistics of registration of the media sheets with respect to the scanner over time (hours or days). The method compares the statistics with a predetermined registration range and provides a notification of a scanner re-registration requirement when the statistics are outside the predetermined range.

Scanner registration systems and methods for providing a notification of a scanner re-registration requirement when statistics are outside predetermined registration range

A method () and apparatus () control feed commitments based on feedable capacity. The apparatus may include a source () of feedable media sheets and a feeder module () coupled to the source of feedable media sheets, the feeder module configured to control the source of feedable media sheets. The apparatus may include a marking engine () coupled to the source of feedable media sheets, the marking engine configured to mark images on media sheets fed by the source of feedable media sheets. The apparatus may include a marker module () coupled to the marking engine, the marker module configured to control the marking engine. The apparatus may include a scheduler module () coupled to the feeder module and the marker module, the scheduler module configured to schedule feed commitments for the feeder module and mark commitments for the marker module. The feeder module may be configured to determine whether there will be a future low media sheet count based on comparing a predetermined number with an outstanding sheet feed commitment amount and may be configured to assert a break in feed commitments if there will be a future low media sheet count.

Apparatus and method for controlling feed commitments based on feedable capacity

Embodiments herein begin by sensing first document presence data of a media sheet in a media path using a scanner. Then, the embodiments calculate a background correction factor for scanning the media sheet based on input from the scanner. Second document presence data is obtained from this background correction factor. If the second document presence data indicates that no media sheet is present (which is contrary to the first document presence data), there is a possibility that the first document presence data was false. In order to check if the first document presence data is false, the embodiments obtain third document presence data relating to alignment of the media sheet within the media path, again using the scanner. If the third document presence data also determines that no media sheet is present, this indicates that the media path is in need of cleaning. In other words, if the first document presence data indicates that the media sheet is present, but the second document presence data and third document presence data both indicate that no media sheet is present, the embodiments provides a notification that the media path needs cleaning.

Document scanner dust detection systems and methods

A document size identification module receives a single scan of a document and detects for at least one of a black to white transition and a white to black transition. The black to white transition may represent a transition from an overscan area of a platen to a document. The white to black transition may represent a transition from the document to the overscan area of the platen. By detecting at least one of the black to white transition and the white to black transition, the document width may be determined. By determining the document width, the document size may be identified.

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Rochester, NY, United States of America

Biruk Gossaye