Inventor
LADONNA RICHARD V
US17 patents
Patents
17 patentsUS5107276AApr 21, 1992
Thermal ink jet printhead with constant operating temperature
XEROX CORP231 citations99
US5585825ADec 17, 1996
Ink jet printer having temperature sensor for replaceable printheads
XEROX CORP178 citations98
US5519419AMay 21, 1996
Calibration system for a thermal ink-jet printer
XEROX CORP61 citations96
US5504507AApr 2, 1996
Electronically readable performance data on a thermal ink jet printhead chip
XEROX CORP86 citations96
US5223853AJun 29, 1993
Electronic spot size control in a thermal ink jet printer
XEROX CORP66 citations96
US4638328AJan 20, 1987
Printhead for an ink jet printer
XEROX CORP87 citations96
US5881451AMar 16, 1999
Sensing the temperature of a printhead in an ink jet printer
XEROX CORP37 citations92
US5686943ANov 11, 1997
Ink jet printer having temperature sensor for periodic contact with printhead
XEROX CORP24 citations92
US5519417AMay 21, 1996
Power control system for a printer
XEROX CORP23 citations92
US5497174AMar 5, 1996
Voltage drop correction for ink jet printer
XEROX CORP47 citations92
US5483265AJan 9, 1996
Minimization of missing droplets in a thermal ink jet printer by drop volume control
XEROX CORP41 citations92
US5563635AOct 8, 1996
Power control system for a thermal ink-jet printer
XEROX CORP22 citations90
US5739830AApr 14, 1998
Monolithic printheads for ink jet printing apparatus
XEROX CORP15 citations73
US5422665AJun 6, 1995
Low-interference thermistor for a thermal ink jet printhead chip
XEROX CORP7 citations73
US7422301B2Sep 9, 2008
Method and apparatus using pixel spot size control for reducing intercolor bleed
XEROX CORP1 citations52
US3980477ASep 14, 1976
Photoelectrophoresis with dark charge injecting element
XEROX CORP0 citations38
US3967960AJul 6, 1976
Photoelectrophoretic imaging process employing dark charge injecting element
XEROX CORP0 citations38