Xerox Corporation

Christian G Midgley

W Keith Gilliland

Heiko Rommelmann

Michael William Barrett

Kenneth B Schleede

Edward John Solcz

Gregory C Sosinski

Robert Allen Koontz

Wayne Rudge

Robert Benjamin Wilkie

Parul Patel

David S Shuman

Eric Lambert

Rebecca Mallaband

Christian Redder

Natalia Vershinina

Francis W Dana

Mark C Mutch

Michael B Sewell

Alison M Murphy

Wayne T Bowerman

Asif Qureshi

Marcin Cholkowski

Erroll Elliston

A printing system includes first and second communicatively linked printers, each including a print engine and a processor which controls the operation of the respective print engine. A scanner, associated with the first printer, scans a hardcopy document and generates image data therefrom. The scanner is for communicating the image data to the first printer. A graphical user interface is provided through which user selections are communicated to at least one of the scanner and the first printer. The first processor has a first mode of operation in which a print job derived from the image data is printed on the first print engine and a second mode of operation in which a print job is exported to the second printer for printing. At least one of the first and second modes of operation is invoked at least in part by user interaction with the graphical user interface.

Printer with outsourcing capability for color copies

A method, service, system, computer program, etc., provides a list of acceptable authentication servers that a user could use to log in when accessing a networked device, such as a networked printer or document processing device. The embodiments include preparing a module, such as a dynamically loadable module (DLM) for use in the networked system accessed by the users. Each of the networked devices is enabled to accept the DLM. The embodiments forward the DLM to the networked devices as a print job along a print job submission path within the network. The networked devices recognize the DLM as a special job. Further, the networked devices use the DLM to install the XML file on each of the networked devices. Thus, the authentication server lists and authentication programs are updated within each of the networked devices using the DLM.

Updating authentication server lists for users accessing shared access devices

By providing a secure EEPROM (Electrically Erasable Programmable Read Only Memory) device or other non-volatile memory (NVM) as a system operation key (SOK) to control the configurable machine option attributes, various problems associated with machine option configuration and updates may be accommodated. At initial SOK install the identity of the machine is written to the NVM, i.e. the machine serial number. This is performed during the initial machine power up or reboot sequence. As part of the power on or reboot routine the machine will check to ensure no tampering has taken place and that the machine identity and the NVM serial number location data match. A new swapped in SOK can be installed so long as the NVM serial number location has not been previously written to with a conflicting identification number. The machine will then write the serial number to the new SOK thereby protecting it.

Machine post-launch configuration and option upgrade

An improved system for more accurately estimating consumption of toner imaging material in a digital xerographic printer in relation to a count of the digital pixels generating the various images being printed, where the frequency rates of the switching between print and non-print pixels are analyzed to provide weighting factors corresponding to different types of images being printed which affect the consumption of imaging material by the printer, and the pixel counts are weighted by these weighting factors to provide an imaging material consumption calculation based on image types as well as image pixel counts. The pixel count weighting factor is automatically substantially increased for the higher print/nonprint rates, or pixel on/off frequencies, and higher toner consumption by fringe field development, corresponding to halftone images in comparison to solid area images. The pixel count weighting factor is intermediately increased for intermediate imaging frequencies corresponding to normal line text.

Printer toner usage indicator with image weighted calculation

A monitoring system for replaceable units, such as toner cartridges in an electrophotographic printer, includes on the unit an electronic count memory and an electronic flag memory. The count memory maintains a one-by-one count of prints made with the cartridge. The flag memory includes a series of bits which are alterable from a first state to a second state but not alterable from the second state to the first state. The bits in the flag memory are altered at predetermined intervals as prints are made with the cartridge. The flag memory is used as a check to override unauthorized manipulation of the count memory.

Monitoring system with dual memory for electrophotographic printing

A monitor/warranty system for electrostatographic reproducing machines in which replaceable cartridges providing a predetermined number of images are used, each cartridge having an EEPROM programmed with a cartridge identification number that when matched with a cartridge identification number in the machine enables machine operation, a cartridge replacement warning count, and a termination count at which the cartridge is disabled from further use, the EEPROM storing updated counts of the remaining number of images left on the cartridge after each print run.

Monitor/warranty system for electrostatographic reproducing machines

Growing community of inventors

Fairport, NY, United States of America

Christian G Midgley