MICHAEL LEE MARTIN
Pilots at 30 St, Boise, ID

6804478, Oct 12, 2004

Feb 18, 2003

10/368533

Michael Joseph Martin - Boise ID
Tim Mitchell Hoberock - Boise ID

Hewlett-Packard Development Company, L.P. - Houston TX

G03G 1500

399 45, 399 67

In one non-limiting embodiment an apparatus for controlling a fuser in an imaging apparatus includes a first fuser roller and a second fuser roller in parallel, adjacent orientation and configured to receive sheet media therebetween. The apparatus further includes an electrical voltage source applied across the fuser rollers. The apparatus also includes a voltage difference measuring device configured to measure a difference in the electrical voltage across the first and second fuser rollers when sheet media is received between the first and second fuser rollers, and to generate a voltage difference signal in response thereto. The device includes a controller which is configured to receive the voltage difference signal and to generate a fuser parameter control signal in response thereto. The apparatus also includes a fuser control device responsive to the fuser parameter control signal.

6643475, Nov 4, 2003

Jan 18, 2002

10/051420

Tim M. Hoberock - Boise ID
Michael J. Martin - Boise ID

Hewlett-Packard Development Company, L.P. - Houston TX

G03G 1500

399 21, 399 22

An imaging device is provided that generates and transfers an image to a print media. A fuser fuses the image to the print media through a process of heat and pressure. The fuser is charged with a voltage to reduce toner particles from being attached to the fuser. When the print media contacts the fuser, its current path is altered causing the voltage of the fuser to change. A fuser sensor circuit measures the voltage of the fuser and based on the measured voltage, the imaging device can determine whether a print media is in the fuser. In the event of a malfunction such as a paper jam, the imaging device can determine the location of the print media at least in part by the measured fuser voltage.

6782214, Aug 24, 2004

Jul 2, 2003

10/612078

Tim M. Hoberock - Boise ID
Michael J. Martin - Boise ID

Hewlett-Packard Development Company, L.P. - Houston TX

G03G 1500

399 21, 399 22

In one embodiment, an imaging device is provided that generates and transfers an image to a print media. A bias voltage is applied to a fuser to charge the fuser where the fuser bias voltage is affected by the print media contacting the fuser. An image is fused to the print media with the fuser and the fuser bias voltage is measured. Whether the print media is in the fuser can be determined based on the measured fuser bias voltage.

6229968, May 8, 2001

Aug 26, 1999

9/384716

Michael J. Martin - Boise ID
John W. Huffman - Meridian ID
Nancy Cernusak - Eagle ID
Suzie Dustin - Meridian ID

Hewlett-Packard Company - Palo Alto CA

G03G 2100, G03G 1500

399 34

In an imaging system including at least one imaging medium transfer surface, an apparatus for detecting defects on the transfer surface is provided. The apparatus includes a scanner mechanism adapted and constructed to generate signals corresponding to a condition of the transfer surface. A processor is also provided. The processor is operatively connected to the scanner mechanism, and is adapted and constructed to receive and interpret signals from the scanner mechanism. In an imaging system including at least one imaging medium transfer surface, a method of detecting defects on an image medium surface is provided. The method includes the following steps. First, a scanning mechanism is provided. The scanning mechanism is adapted and constructed to generate signals corresponding to a condition of the transfer surface within the imaging system. Next, a defect is detected on the transfer surface by analyzing the signals generated by the scanning mechanism.

6163662, Dec 19, 2000

Jul 6, 1999

9/348650

Michael J. Martin - Boise ID
John W. Huffman - Meridian ID
Nancy Cernusak - Eagle ID
Jeffrey S. Weaver - Boise ID
James G. Bearss - Boise ID
Thomas Camis - Boise ID

Hewlett-Packard Company - Palo Alto CA

G03G 1500

399 45

The present invention relates to image forming devices, fusing assemblies and methods of forming an image. According to one aspect of the invention, an image forming device includes a housing including a media path configured to guide media in a downstream direction within the housing; an input device configured to receive an image; a developing assembly adjacent the media path and configured to provide developing material; a sensor adjacent the media path and configured to determine a qualitative characteristic of the media and to generate a signal indicative of the qualitative characteristic; and a fuser adjacent the media path and configured to adjust a fusing parameter responsive to the signal and to fuse the developing material corresponding to the image to the media and according to the fusing parameter.

6011939, Jan 4, 2000

Jul 30, 1998

9/126628

Michael J. Martin - Boise ID

Hewlett-Packard Company - Palo Alto CA

G03G 1520

399 69

A fixing device control system controls multiple heating elements included in the fuser so that the duty cycle of the power applied to the multiple heating elements results in an optimal temperature profile over the length of the fuser. Multiple thermistors are used in a feedback control circuit to regulate the temperature profile of the fuser. A formatter uses print data from a host to generate data defining the size and location of a printing area on the print media. Using the data defining the size and location of the printing area, the formatter generates a command to send to a controller. The controller applies power to the multiple heating elements in order to generate the fuser temperature profile corresponding to the command. In a first embodiment of the fixing device control system, the formatter generates the command by using the data defining the size and location of the printing area to access information stored in a table. In a second embodiment of the fixing device control system, the formatter computes the command from the data defining the printing area.

2013033, Dec 12, 2013

Jun 7, 2012

13/491187

Sean Michael Collison - Meridian ID, US
Brandi Michelle Pitta - Eagle ID, US
Michael Joseph Martin - Boise ID, US
George Henry Kerby - Boise ID, US

G03G 15/20

399 69

A toner coverage determination system and method are described. The toner coverage determination system may include a memory storing a module comprising machine readable instructions to receive an input image, and generate a grid including a plurality of points corresponding to pixels to be sampled on the input image. The machine readable instructions may further sample the pixels corresponding to the plurality of points, evaluate pixel intensity values for the sampled pixels, and determine a toner coverage value based on the evaluated pixel intensity values.