1
Kenneth James Harshbarger, Austin Keith Wickline: Process for priming a multi-chamber ink jet print head. Lexmark International, John A Brady, August 1, 2000: US06095633 (126 worldwide citation)

Pressure is applied to a resilient seal around the venting portion of a print head while the nozzles are elevated in the vertical position above the ink, thereby forcing ink out of the nozzles and purging the in-flow paths of air.


2
Timothy L Strunk, Glenn S Westerman: Method for testing DC motors. International Business Machines Corporation, William J Dick, John A Brady, May 10, 1988: US04744041 (113 worldwide citation)

Disclosed is a DC parameter motor tester based on current time response, which tester does not require coupling of the motor (14) to some mechanical device or measuring other noise sensitive parameters taken from only a few discrete data points. As is disclosed, the steady state speed of the motor i ...


3
John B Berry, James R Booth, Keith B Hardin, John P Richey: Method and apparatus for providing a clock generation circuit for digitally controlled frequency or spread spectrum clocking. Lexmark International, John A Brady, April 2, 2002: US06366174 (104 worldwide citation)

An improved clock generation circuit is provided that operates with a single input clock frequency, and includes a Phase Locked Loop circuit (PLL) with a digital accumulator in the feedback loop, in which either the Most Significant Bit or the Carry Bit of the binary adder is used as the modulated f ...


4
Rodney O Aulick, Bradley L Beach, Terence E Franey, James M Mrvos, David G Vella: Device for ink refill of a reservoir in a print cartridge. Lexmark International, Frank C Leach Jr, John A Brady, April 23, 1996: US05510820 (96 worldwide citation)

An ink refill device includes a body having a chamber with ink therein. The chamber has one wall formed of a frangible material. The body has a needle communicating the chamber with a reservoir, which has a foam of a controlled porosity therein, in a print cartridge when the needle is inserted in a ...


5
Steven Lewis Applegate, Cyrus Bradford Clarke, Timothy Philip Craig, David Lee Merrifield, James John Molloy, Benjamin Keith Newman, Gary Scott Overall, Gregrory Lawrence Ream, Thomas Gregrory Survant, Thomas Campbell Wade, Phillip Byron Wright: Method and apparatus for storing data in a non-volatile memory circuit mounted on a printers process cartridge. Lexmark International, John A Brady, November 30, 1999: US05995774 (94 worldwide citation)

An improved electrophotographic (EP) printer is provided having a detachable process cartridge that contains a non-volatile memory device, which is an EPROM that cannot be erased after a bit is burned. A "toner wheel" mounted to the exterior of the toner reservoir of the process cartridge provides, ...


6
Keith B Hardin: Spread spectrum clock generator. Lexmark International, John A Brady, May 20, 1997: US05631920 (87 worldwide citation)

A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator, generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of the ...


7
Gary Allen Denton, David Kurt Klaffenbach: Laser printer having variable beam spacing. Lexmark International, John A Brady, March 14, 2000: US06037963 (72 worldwide citation)

A laser printer includes at least three laser beams for simultaneously scanning a rotatable recording medium. The laser beams have their centers spaced uniform or non-uniform distances from each other. The centers of the laser beams are spaced predetermined distances from each other so that the prin ...


8
Ashok Murthy, Lawrence Russell Steward, Charles Spencer Whitman: Fabrication of thermal ink-jet feed slots in a silicon substrate. Lexmark International, John A Brady, August 19, 1997: US05658471 (55 worldwide citation)

Improved methods for fabricating the ink feed slots in silicon substrate for use in thermal ink-jet print heads is disclosed. One method involves the partial anisotropic etching of an ink feed slot in a silicon substrate for use in aligning the electrical resistive elements on one surface of the sub ...


9
James Ronald Booth, Donald Reid Bush, John Thomas Fessler, Keith Bryan Hardin: Spread spectrum clock generator and associated method. Lexmark International, John A Brady, February 16, 1999: US05872807 (54 worldwide citation)

A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of ...


10
Mark Duane Foster, Donald Thomas Kral, James Caro Lurton, Kenneth Daniel Seevers, Tom E Stickler, Martin Joseph Zutt Jr: Driving mechanism for photosensitive image bearing drum in electrophotographic machines. Lexmark International, John A Brady, July 20, 1999: US05926673 (54 worldwide citation)

A supply cartridge including a photosensitive drum, a charge roller, a developer roller, and a supply of toner, is inserted into a conventional electrophotographic (EP) machine in operative association with the gear train for such machine. One end of a shaft passing through one end cap of the photos ...