Xerox Corporation

Dale T Platteter

Robert S Westfall

Jeff C Carter

Douglas T Rabjohns

Robert M VanDuyn

John R Hill, Jr

Daniel Davies

Timothy Gordon Shelhart

Raymond J Clark

Richard F Scarlata

Richard P Ficarra

Joseph L Filion

Donald Richard Fess

Ronald A Ippolito

Victoria Lynn Warner

Douglas F Sundquist

Thomas C Keyes

Isaak Rivshin

Gregory A Ludgate

Michael J Severn

Thomas E Bitter

Diego A Pereda

Michael W Marchetti

Eugene L Smith

Vincent A Capaccio

Andrew D Szalasny

Judy C Bosso

Joe Marasco

Richard K Patterson

An inlet seal, an outlet seal, and a piston are connected to a shaft. The inlet seal seals an ink inlet of an ink reservoir. The outlet seal seals an ink outlet of the ink reservoir. Also, the piston is within a cylinder. The inlet seal, the outlet seal, and the piston all move with the shaft. A biasing member contacts the piston to bias the piston in a first direction. Pressurized air simultaneously provided to the cylinder and to the ink reservoir biases the piston in a second direction, opposite the first direction, and pressurizes ink within the ink reservoir. Moving the shaft in the first direction does not seal the ink inlet but does seal the ink outlet. Moving the shaft in the second direction seals the ink inlet but does not seal the ink outlet, thus allowing the pressurized ink out from the ink reservoir.

Ink reservoir with pneumatically driven integrated piston and shut-off valves

Embodiments herein comprise an apparatus that includes a printing engine and an interposer adapted to receive printed sheets from the printing engine. The interposer adds insert sheets between printed sheets. The interposer includes a decurler positioned within the interposer so as to decurl the printed sheets after the interposer adds the insert sheets. The printing engine adds a curl to the printed sheets and the decurler removes the curl from the printed sheets. The decurler can comprise a roller-based decurler, a heated decurler, a pressure based decurler, and/or a moisture-vacuum based decurler.

Interposer having decurler

A system renders print jobs via a marking engine. A raster image processor receives the job from the input module and renders it to one or more raster images. One or more contone image processors receive the one or more raster images to perform cross-channel image processing to render the raster images into a form compatible with the marking engine, wherein the output is partially sub-partitioned by color separation. An image refactoring and distribution network completes the sub-partitioning by separation of the rendered contone raster images by color separation and distributes each color sub-partition to a marker channel module specific to each color sub-partition. A marking engine receives the color sub-partitioned image data, marks the image onto a substrate and outputs a hardcopy of the image.

Distributed data flow for page parallel image processing within printing systems

An apparatus for mutually converting signals between one or more modular printing devices and a document processing system, includes a device controller having a network interface for communicating with a system communications channel, memory for storing data and control code related to the operation of the modular printing devices, and a processor for running the control code, a digital input/output controller for receiving and sending document processing signals, a connector for receiving and sending modular printing device signals, and an optical input/output isolator for optically isolating the signals received via the connector.

Interface converter for image processing systems

A diagnostic method for diagnosing post-manufacture modular add-on components coupled to a system at least includes: a) dynamically retrieving control system topology information not stored at the time of manufacture pertaining to a module chosen for a system graphical display; b) via each module, generating diagnostic information about the components of a module; c) dynamically retrieving module diagnostic information pertaining to a module chosen for a system graphical display; d) hierarchically displaying the component levels of the module chosen for graphical display; e) providing a link between the component levels; and f) indicating the diagnostic status of a displayed component level.

Dynamic control system diagnostics for modular architectures

A media handling system comprises a configuration of N linked modules. Each module has an order based on the module's linkage in the configuration. Thus, a first module of order 1 links to a second module of order 2, the second module links to a third module of order 3, etc., and an (N&#x2212;1)th module of order (N&#x2212;1) links to an Nth module of order N. A feeder module feeds a sheet of media to downstream modules. Each downstream module sends a reporting message to an included controller. The reporting message includes the time the module processed the sheet and the module's reported type. For each reporting module, the controller determines the module's order and type based on the reported time and reported type in the module's reporting message. The controller validates the configuration by determining when the order and the type for the reporting modules match a predetermined pattern.

Method to determine when a media handling system configuration is valid and a media handling system arranged in accordance with the same method

A system architecture and method are provided for synchronizing the slave clock of one or more resources with the master clock of a controller in a document processing system. The method includes: a) saving a value of the master clock (); b) generating a discrete clock synchronization interrupt signal and distributing the interrupt signal to the resource(s) via the control bus (); c) receiving the interrupt signal at each resource () and saving a value of the slave clock (); d) sending a message to the controller via a network to request the value saved for the master clock (); e) sending the value to the resource (); f) receiving the value (); and g) subtracting the value saved for the slave clock from the value saved for the master clock to determine an error value between the clocks () and using the error value in an adjustment algorithm to synchronize the slave clock with the master clock ().

System architecture and method for synchronization of real-time clocks in a document processing system

An electronic image processing apparatus having a marking machine, a source of copy sheets, a controller, and a plurality of resources wherein each of the resources includes an associated processor for storing data related to the operational timing of the associated resource. A bus interconnects the processors to the controller for directing the operation of the image processing apparatus to provide images on the copy sheets and the controller includes circuitry for interrogating each of the processors for the operational timing data and logic for responding to the operational timing data of each of the processors for dynamically configuring the controller to operate in accordance with the operational timing of the processors.

System architecture for attaching and controlling multiple feeding and

The method of changing system files to be able to change either the primary or secondary language or both on a rigid disk to another language, and to provide the operator with the option of selecting either the primary or secondary language as the medium for the display messages and prompts by providing the language requirements on a floppy disk, identifying the specific files of the control to be altered to produce the language requirements, loading the floppy disk into a floppy disk drive, and transferring the language requirements to the rigid disk.

Multilingual operator prompting system which compares language control

The method of verifying the integrity of the non-volatile memory device contents in an image processing apparatus having image processing for forming an image, a controller for directing the operation of the image processing, a mass memory device and a non-volatile memory device for dynamically storing critical machine data comprising the steps of performing a non-volatile memory check including the steps of verifying selected patterns and verifying a checksum related to the non-volatile memory, determining a non-volatile memory fault during the process of performing the non-volatile memory check, retrieving backup critical machine data from the mass memory device, storing the critical machine data into the non-volatile memory device, and providing dynamically updated data backup of the non-volatile memory image to the mass memory device.

Detection and recovery from an nvm data integrity failure

A method of controlling an image processing apparatus having an image processing means for forming an image, a controller including a first memory, and a removable memory medium having a boot sector, a directory, and identifiable files with header sectors, selected files of the removable memory medium capable of being booted into said first memory for controlling the image processing means, including the steps of loading the removable memory medium into a memory drive integral with said image processing apparatus, reading the directory of the removable memory medium for determining bootable attributes, determining the validity of the header sector and the validity of files for booting into the controller, transferring all valid files of the removable memory into the first memory, and determining that the files loaded into the first memory are capable of controlling the image processing apparatus.

Method for selectively loading bootable fiber to control apparatus based

System for saving and restoring critical files on the rigid disk of an electrostatographic reproduction machine in the event the disk becomes corrupted wherein the critical files have an identifying header sector transparent to the disk directory, with a floppy disk having a bootable locate and read utility to identify critical files and read them to blank floppy disks so as to enable the rigid disk to be rebuilt or replaced without fear of loss or destruction of the critical files, a disk rebuilding utility to rebuild the rigid disk, and a file restoration utility to restore the critical files to the rigid disk when rebuilding or replacing of the rigid disk is completed.

Process and apparatus for saving and restoring critical files on the

System for recording and remotely accessing certain operating data in an electrostatographic reproduction machine for use in analyzing machine faults and software crashes, with transfer of the data to a remote service site either by floppy disk or telecommunications line.

System for recording and remotely accessing operating data in a

The method of permitting the execution of a disk loaded into the disk drive, the disk having a plurality of tracks, comprising the steps of writing data in non-standard format and length to a normally unaccessible track of the disk, the data including an encrypted password, the password being located at an arbitary location within the data, reading the data resulting in an error signal, locating an indexing position and applying an offset to identify the password, and unencrypting and authenticating the password in order to execute the disk.

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Fairport, NY, United States of America

Dale T Platteter