Inventor
SHOEMAKER RALPH A
US25 patents
Patents
25 patentsUS6940613B1Sep 6, 2005
System for managing replaceable modules in a digital printing apparatus
XEROX CORP67 citations96
US6438329B1Aug 20, 2002
Method and apparatus for automatic customer replaceable unit (CRU) setup and cleaner blade lubrication
XEROX CORP33 citations92
US6198885B1Mar 6, 2001
Non-uniform development indicator
XEROX CORP24 citations92
US6016204AJan 18, 2000
Actuator performance indicator
XEROX CORP40 citations92
US5966573AOct 12, 1999
Seamed flexible electrostatographic imaging belt having a permanent localized solid attribute
XEROX CORP43 citations92
US5946521AAug 31, 1999
Xerographic xerciser including a hierarchy system for determining part replacement and failure
XEROX CORP39 citations92
US5903796AMay 11, 1999
P/R process control patch uniformity analyzer
XEROX CORP34 citations92
US5895141AApr 20, 1999
Sensorless TC control
XEROX CORP24 citations92
US5519497AMay 21, 1996
Control develop mass in a color system
XEROX CORP30 citations92
US5083161AJan 21, 1992
Densitometer for measuring developability
XEROX CORP30 citations92
US5078497AJan 7, 1992
Densitometer for a liquid developer material
XEROX CORP45 citations92
US6792220B2Sep 14, 2004
Dual density gray patch toner control
XEROX CORP20 citations90
US6081348AJun 27, 2000
Ros beam failure detector
XEROX CORP19 citations84
US5960228ASep 28, 1999
Dirt level early warning system
XEROX CORP17 citations84
US7773239B2Aug 10, 2010
System for managing replaceable modules in a digital printing apparatus
XEROX CORP8 citations83
US7649638B2Jan 19, 2010
System for managing replaceable modules in a digital printing apparatus
XEROX CORP12 citations83
US5893008AApr 6, 1999
Photoreceptor parking deletion detector
XEROX CORP10 citations74
US5864730AJan 26, 1999
Photoreceptor seam signature
XEROX CORP13 citations74
US4638986AJan 27, 1987
Feedability sensor for a vacuum corrugated feeder
XEROX CORP13 citations74
US5995775ANov 30, 1999
ROS pixel size growth detector
XEROX CORP16 citations73
US4831410AMay 16, 1989
Automatic exposure control system for flash exposure photocopiers
XEROX CORP8 citations71
US7515843B2Apr 7, 2009
Color mis-registration measurement using an infra-red color density sensor
XEROX CORP3 citations63
US5963761AOct 5, 1999
Area coverage sensor calibration and algorithm for seam detection noise eliminator on a seamed photoreceptor
XEROX CORP5 citations63
US5956542ASep 21, 1999
Tribo decay rest recovery and developer material break in procedure
XEROX CORP2 citations63
US6606463B2Aug 12, 2003
Optical toner concentration sensor
XEROX CORP4 citations60