Inventor
DONAHUE FREDERICK A
US22 patents
⚠️ This page may combine multiple inventors who share the name “DONAHUE FREDERICK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XEROX CORP
20 patentsUS6158837ADec 12, 2000
Printer having print mode for non-qualified marking material
XEROX CORP200 citations99
US6089693AJul 18, 2000
Pagewidth ink jet printer including multiple pass defective nozzle correction
XEROX CORP200 citations99
US6155669ADec 5, 2000
Pagewidth ink jet printer including a printbar mounted encoding system
XEROX CORP126 citations98
US5349905ASep 27, 1994
Method and apparatus for controlling peak power requirements of a printer
XEROX CORP129 citations98
US5534895AJul 9, 1996
Electronic auto-correction of misaligned segmented printbars
XEROX CORP113 citations97
US5619622AApr 8, 1997
Raster output interface for a printbar
XEROX CORP94 citations95
US6494553B1Dec 17, 2002
Ink level sensing for ink printer
XEROX CORP69 citations93
US6174037B1Jan 16, 2001
Multiple pass ink jet printer with optimized power supply
XEROX CORP40 citations92
US5704602AJan 6, 1998
System for automatic print jobs separations in folders
XEROX CORP42 citations92
US5692108ANov 25, 1997
Odd/even stroke control for reduced video data clocking
XEROX CORP32 citations92
US5402156AMar 28, 1995
Slow scan stitching mechanism
XEROX CORP22 citations92
US5579453ANov 26, 1996
Smart direct memory access controller
XEROX CORP31 citations91
US5563591AOct 8, 1996
Programmable encoder using an addressable display
XEROX CORP41 citations88
US6176563B1Jan 23, 2001
Ink marking device maintenance fluid replenishment system and method
XEROX CORP13 citations74
US5803628ASep 8, 1998
Printing apparatus including encoder pending
XEROX CORP16 citations74
US4577096AMar 18, 1986
Multiple copy and transparency detector with illumination control
XEROX CORP9 citations72
US6450712B1Sep 17, 2002
Method and apparatus for optimizing substrate speed in a printer device
XEROX CORP11 citations70
US7030972B2Apr 18, 2006
System and method for identifying objects
XEROX CORP6 citations63
US6238046B1May 29, 2001
Liquid ink printer including a variable throughput active-passive wet sheet dryer assembly
XEROX CORP5 citations63
US6578942B1Jun 17, 2003
Liquid crystal sensing of thermal ink jet head temperature
XEROX CORP3 citations62