Xerox Corporation

Michael William Elliot

Michael Joseph Dahrea

Stephen F Randall

Charles A Barbe

Thomas F Shane

Timothy James Garwood

Vivek Jaganathan

Marc Palmaffy

A method for operating a printer includes supplying liquid ink from two ink reservoirs to a printhead to enable the printhead to eject ink drops onto an image receiving substrate. A substrate transport moves the substrate past the printhead at a first speed. In response to detecting an interruption in the supply of liquid ink from one of the two ink reservoirs, the substrate transport moves the image receiving substrate at a slower second speed past the printhead.

Method for printing in a printer having an inoperable ink reservoir

Test pattern template data are stored in a memory of a printer to identify locations spatially within image data of a test pattern printed by printheads in an inkjet printer. The test pattern template data identifies an origin of a test pattern in the image data and the distances between structures in the test pattern to enable test pattern structure in the image data to be detected and identified more easily.

System and method for analysis of test pattern image data in an inkjet printer using a template

According to aspects of the embodiments, there is provided methods and systems for configuring modules and sub-modules in a control area network (CAN) of a printer system using machine data and network protocols. The machine data includes a file that describes the board types and application types for possible modules and sub-modules of a printer system. The machine data facilitates the process of identifying modules and the process of differentiating sub-module boards from other modules. Customization of printer configurations is enhanced through plug-and-play support allowing for dynamic sub-module re-configuration for the disconnection and reconnection of boards that may form part of replaceable units. A configuration process allows non-configured boards to be placed, when the printer system is idle, properly into the network and to be associated with the proper module.

Dynamic module configuration in a controller area network (CAN) with fixed sub-module board identification and plug-N-play support

In a printing apparatus having a rotatable imaging member and means for performing a selected one of a plurality of operations on a portion of the rotatable imaging member, a set of metaphorical bricks are used to schedule operations. For an operation of a first type, a first brick is scheduled, the first brick defining a time duration associated with the operation, and defining a first portion having a first height and a second portion having a second height. For an operation of a second type, a second brick is scheduled, the second brick defining at least one height and a time duration associated with the operation. A combined height of bricks scheduled over time is monitored.

Brick-based system for scheduling functions in a printing apparatus

A method of operating a printing apparatus, the apparatus having a rotatable imaging member and an imaging station useful in creating printable images and test patches on the rotatable imaging member. Data is obtained relating to images desired to be printed in a time-frame corresponding to a predetermined number of rotations of the imaging member. A gap is identified in the time-frame corresponding to a location on the imaging member that is not occupied by an image desired to be printed within the time-frame. The identified gap is identified as suitable for receiving a test patch.

Scheduling system for placing test patches in a printing apparatus

In a printing apparatus having a rotatable imaging member, a test patch is created in a predetermined area of the imaging member. A density of the test patch is measured at least a first time, corresponding to a first rotation of the imaging member. Based at least partially on the measuring of the density of the test patch at least a first time, how many rotations in the future the predetermined area of the imaging member will be available for receiving new marking material is predicted.

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Macedon, NY, United States of America

Michael William Elliot