Inventor
TOMPKINS E NEAL
US42 patents
⚠️ This page may combine multiple inventors who share the name “TOMPKINS E NEAL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COLOROCS CORP
11 patentsUS5103260AApr 7, 1992
Toner density control for electrophotographic print engine
COLOROCS CORP58 citations96
US4931839AJun 5, 1990
Transfer system for electrophotographic print engine
COLOROCS CORP69 citations96
US4839722AJun 13, 1989
Method and apparatus for providing improved color correction in a subtrative color printing system
COLOROCS CORP66 citations94
US5053827AOct 1, 1991
Method and apparatus for intermittent conditioning of a transfer belt
COLOROCS CORP30 citations92
US4901110AFeb 13, 1990
Vertical print engine for electrophotographic apparatus
COLOROCS CORP24 citations92
US4848267AJul 18, 1989
Apparatus for removal and addition of developer to a toner module
COLOROCS CORP29 citations92
US4788572ANov 29, 1988
Belt controls for a print engine for color electrophotography
COLOROCS CORP39 citations92
US5170209ADec 8, 1992
Process cartridge for an intermediate transfer electrophotographic print engine
COLOROCS CORP21 citations77
US5027158AJun 25, 1991
Vertical print engine for electrophotographic apparatus
COLOROCS CORP16 citations73
US4989045AJan 29, 1991
Method for removal and addition of developer to a toner module in an electrophotographic print engine
COLOROCS CORP5 citations62
US5150158ASep 22, 1992
Flat screen for an electrophotographic printing device
COLOROCS CORP1 citations51
ELECTRONICS FOR IMAGING INC
11 patentsUS7206082B2Apr 17, 2007
Method and apparatus for routing pages to printers in a multi-print engine as a function of print job parameters
ELECTRONICS FOR IMAGING INC16 citations92
US7046391B1May 16, 2006
Method and apparatus for providing a color-balanced multiple print engine
ELECTRONICS FOR IMAGING INC25 citations92
US6850335B1Feb 1, 2005
Method and apparatus for distributing pages to individual print engines in a multiple print engine
ELECTRONICS FOR IMAGING INC42 citations92
US7554687B2Jun 30, 2009
Methods and apparatus for determining toner level in electro-photographic print engines
ELECTRONICS FOR IMAGING INC9 citations84
US7532347B2May 12, 2009
Methods and apparatus for routing pages to printers in a multi-print engine as a function of print job parameters
ELECTRONICS FOR IMAGING INC6 citations74
US7116444B2Oct 3, 2006
Method and apparatus for determining toner level in electrophotographic print engines
ELECTRONICS FOR IMAGING INC8 citations74
US7095528B2Aug 22, 2006
Apparatus and methods for duplex printing in multiple print engine systems
ELECTRONICS FOR IMAGING INC6 citations74
US6977752B1Dec 20, 2005
Method and apparatus for determining toner level in electrophotographic print engines
ELECTRONICS FOR IMAGING INC7 citations74
US6888644B2May 3, 2005
Method and apparatus for determining toner level in electrophotographic print engines
ELECTRONICS FOR IMAGING INC6 citations74
US7301665B2Nov 27, 2007
Method and apparatus for determining toner level in electrophotographic print engines
ELECTRONICS FOR IMAGING INC3 citations63
US7471403B2Dec 30, 2008
Apparatus and methods for selectively distributing print pages in multiple print engine systems
ELECTRONICS FOR IMAGING INC0 citations52
TR SYSTEMS INC
9 patentsUS6606165B1Aug 12, 2003
Method and apparatus for routing pages to printers in a multi-print engine as a function of print job parameters
TR SYSTEMS INC166 citations99
US5859711AJan 12, 1999
Multiple print engine with virtual job routing
TR SYSTEMS INC294 citations99
US5940186AAug 17, 1999
Multiple printer module electrophotographic printing device
TR SYSTEMS INC90 citations98
US6657741B1Dec 2, 2003
Multiple print engine system with selectively distributed ripped pages
TR SYSTEMS INC66 citations97
US6633396B1Oct 14, 2003
Page synchronization in a color print system
TR SYSTEMS INC53 citations96
US5459560AOct 17, 1995
Buried electrode drum for an electrophotographic print engine with controlled resistivity layer
TR SYSTEMS INC25 citations92
US5442429AAug 15, 1995
Precuring apparatus and method for reducing voltage required to electrostatically material to an arcuate surface
TR SYSTEMS INC34 citations92
US5398107AMar 14, 1995
Apparatus for biasing the curvature of an image carrier on a transfer drum
TR SYSTEMS INC36 citations92
US5276490AJan 4, 1994
Buried electrode drum for an electrophotographic print engine
TR SYSTEMS INC38 citations92
T R SYSTEMS
7 patentsUS5596416AJan 21, 1997
Multiple printer module electrophotographic printing device
T R SYSTEMS407 citations99
US6825943B1Nov 30, 2004
Method and apparatus to permit efficient multiple parallel image processing of large jobs
T R SYSTEMS127 citations96
US6707563B1Mar 16, 2004
Multiple print engine with error handling capability
T R SYSTEMS70 citations96
US5745657AApr 28, 1998
Method and apparatus for multi-modal printing with electrophotographic print engine
T R SYSTEMS80 citations96
US5583623ADec 10, 1996
Method and apparatus for attaching an image receiving member to a transfer drum
T R SYSTEMS27 citations92
US5563689AOct 8, 1996
Developer module with electromagnetic shutter
T R SYSTEMS23 citations92
US5799232AAug 25, 1998
Friction drive for an electrophotographic print engine
T R SYSTEMS16 citations73