John P. Richey

Person

Lexington, KY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Power management and control for a fuser of an electrophotographic...
- Patent number 9,639,038
- Issue date May 2, 2017
- Lexmark International, Inc.
- Jichang Cao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Characterization of toner patch sensor in an image forming device
- Patent number 8,301,049
- Issue date Oct 30, 2012
- Lexmark International, Inc.
- Mark A. Omelchenko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Characterization of toner patch sensor
- Patent number 7,890,006
- Issue date Feb 15, 2011
- Lexmark International, Inc.
- Mark A. Omelchenko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical sensor system with a dynamic threshold for monitoring toner...
- Patent number 7,593,653
- Issue date Sep 22, 2009
- Lexmark International, Inc.
- John Parker Richey
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for reducing EMI emissions for data signals tr...
- Patent number 7,515,646
- Issue date Apr 7, 2009
- Lexmark International, Inc.
- Keith B. Hardin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for characterizing and compensating drive trai...
- Patent number 7,433,630
- Issue date Oct 7, 2008
- Stacy M. Pargett
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multiple speed modes for an electrophotographic device
- Patent number 7,277,111
- Issue date Oct 2, 2007
- Lexmark International, Inc.
- Alan S. Campbell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Combined paper and transparency sensor for an image forming apparatus
- Patent number 7,018,121
- Issue date Mar 28, 2006
- Lexmark International, Inc.
- Raymond Jay Barry
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for controlling transfer belt velocity of a co...
- Patent number 6,661,981
- Issue date Dec 9, 2003
- Lexmark International, Inc.
- Richard M. Boothe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of detecting waste toner in a container of an image forming...
- Patent number 6,580,881
- Issue date Jun 17, 2003
- Lexmark International, Inc.
- Matthew Christopher Coriale
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Intermediate transfer member motion control via surface wheel feedback
- Patent number 6,560,434
- Issue date May 6, 2003
- Lexmark International, Inc.
- Danny Keith Chapman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of minimizing print delay due to mirror motor warm-up in an...
- Patent number 6,459,443
- Issue date Oct 1, 2002
- Lexmark International, Inc.
- Martin Christopher Klement
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for providing a clock generation circuit for d...
- Patent number 6,366,174
- Issue date Apr 2, 2002
- Lexmark International, Inc.
- John B. Berry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of controlling laser scanner phase in a multicolor electroph...
- Patent number 6,285,383
- Issue date Sep 4, 2001
- Lexmark International, Inc.
- Martin Christopher Klement
- G02 - OPTICS
Information Patent Grant
Method of controlling print registration in an electrophotographic...
- Patent number 6,252,618
- Issue date Jun 26, 2001
- Lexmark International, Inc.
- Matthew Christopher Coriale
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Low electromagnetic emissions and improved signal quality video dri...
- Patent number 6,147,699
- Issue date Nov 14, 2000
- Lexmark International, Inc.
- John Bruce Berry
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Toner conservation by PEL modulation with operator control
- Patent number 5,986,681
- Issue date Nov 16, 1999
- Lexmark International, Inc.
- Phillip Byron Wright
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
ASIC with selectable output drivers
- Patent number 5,783,963
- Issue date Jul 21, 1998
- Lexmark International, Inc.
- Sean Foster Garnett
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Toner conservation by pel modulation with operator control
- Patent number 5,729,270
- Issue date Mar 17, 1998
- Lexmark International, Inc.
- Phillip Byron Wright
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Bit map adjustment preserving resolution
- Patent number 5,650,857
- Issue date Jul 22, 1997
- Lexmark International, Inc.
- Carl Price Cole
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Power Management and Control for a Fuser of an Electrophotographic...
- Publication number 20170192379
- Publication date Jul 6, 2017
- Lexmark International, Inc.
- Jichang Cao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Characterization Of Toner Patch Sensor
- Publication number 20090129799
- Publication date May 21, 2009
- Mark A. Omelchenko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Characterization of Toner Patch Sensor In An Image Forming Device
- Publication number 20090129800
- Publication date May 21, 2009
- Mark A. Omelchenko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical Sensor System With A Dynamic Threshold For Monitoring Toner...
- Publication number 20090052911
- Publication date Feb 26, 2009
- John Parker Richey
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Multiple speed modes for an electrophotographic device
- Publication number 20060170757
- Publication date Aug 3, 2006
- Lexmark International, Inc.
- Alan S. Campbell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Method and apparatus for characterizing and compensating drive trai...
- Publication number 20060127132
- Publication date Jun 15, 2006
- Lexmark International, Inc.
- Stacy M. Pargett
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Combined paper and transparency sensor for an image forming apparatus
- Publication number 20050201808
- Publication date Sep 15, 2005
- Raymond Jay Barry
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Method and apparatus for reducing EMI emissions for data signals tr...
- Publication number 20050185731
- Publication date Aug 25, 2005
- Keith B. Hardin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Margin registration of a scan line in an electrophotographic printer
- Publication number 20050134679
- Publication date Jun 23, 2005
- Robert L. Paterson
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Transfer belt velocity control for color printer
- Publication number 20030072578
- Publication date Apr 17, 2003
- Richard M. Boothe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD OF DETECTING WASTE TONER IN A CONTAINER OF AN IMAGE FORMING...
- Publication number 20030068167
- Publication date Apr 10, 2003
- Matthew Christopher Coriale
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Intermediate transfer member motion control via surface wheel feedback
- Publication number 20020122678
- Publication date Sep 5, 2002
- Danny Keith Chapman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

John P. Richey

Person

Patents Grantslast 30 patents

Power management and control for a fuser of an electrophotographic...

Characterization of toner patch sensor in an image forming device

Characterization of toner patch sensor

Optical sensor system with a dynamic threshold for monitoring toner...

Method and apparatus for reducing EMI emissions for data signals tr...

Method and apparatus for characterizing and compensating drive trai...

Multiple speed modes for an electrophotographic device

Combined paper and transparency sensor for an image forming apparatus

Method and apparatus for controlling transfer belt velocity of a co...

Method of detecting waste toner in a container of an image forming...

Intermediate transfer member motion control via surface wheel feedback

Method of minimizing print delay due to mirror motor warm-up in an...

Method and apparatus for providing a clock generation circuit for d...

Method of controlling laser scanner phase in a multicolor electroph...

Method of controlling print registration in an electrophotographic...

Low electromagnetic emissions and improved signal quality video dri...

Toner conservation by PEL modulation with operator control

ASIC with selectable output drivers

Toner conservation by pel modulation with operator control

Bit map adjustment preserving resolution

Patents Applicationslast 30 patents

Power Management and Control for a Fuser of an Electrophotographic...

Characterization Of Toner Patch Sensor

Characterization of Toner Patch Sensor In An Image Forming Device

Optical Sensor System With A Dynamic Threshold For Monitoring Toner...

Multiple speed modes for an electrophotographic device

Method and apparatus for characterizing and compensating drive trai...

Combined paper and transparency sensor for an image forming apparatus

Method and apparatus for reducing EMI emissions for data signals tr...

Margin registration of a scan line in an electrophotographic printer

Transfer belt velocity control for color printer

METHOD OF DETECTING WASTE TONER IN A CONTAINER OF AN IMAGE FORMING...

Intermediate transfer member motion control via surface wheel feedback