Inventor · disambiguated record
Randall David Mayo
Also filed as: MAYO RANDALL · MAYO RANDALL D · MAYO RANDALL DAVID
50 granted patents·4 pending applications·647 citations·filing 1980–2007
98Inventor score
Top patents by PatentIndex Score
54 records- 0192US6592203B1Subcovered printing mode for a printhead with multiple sized ejectorsLEXMARK INT INC·Filed 2002·Granted Jul 15, 2003·39 cites·26 claims
- 0289US6471319B1Method for synchronizing print start positions for an inkjet printer carriageLEXMARK INT INC·Filed 2001·Granted Oct 29, 2002·35 cites·20 claims
- 0386US6565191B1Method of color shingling to reduce visible printing defectsLEXMARK INT INC·Filed 2002·Granted May 20, 2003·28 cites·25 claims
- 0485US6502920B1Ink jet print head having offset nozzle arraysLEXMARK INT INC·Filed 2000·Granted Jan 7, 2003·25 cites·13 claims
- 0584US5627572AProgrammable head type detection and maintenance systemLEXMARK INT INC·Filed 1995·Granted May 6, 1997·56 cites·13 claims
- 0682US7391525B2Methods and systems to calibrate media indexing errors in a printing deviceLEXMARK INT INC·Filed 2003·Granted Jun 24, 2008·24 cites·18 claims
- 0781US5563637AMaintenance station for ink jet printheadLEXMARK INT INC·Filed 1993·Granted Oct 8, 1996·50 cites·26 claims
- 0878US7044574B2Method and apparatus for generating and assigning a cartridge identification number to an imaging cartridgeLEXMARK INT INC·Filed 2002·Granted May 16, 2006·22 cites·6 claims
- 0978US5480240APrint quality enhancement method and apparatusLEXMARK INT INC·Filed 1993·Granted Jan 2, 1996·40 cites·8 claims
- 1075US6729613B2Method for operating sheet pick and feed systems for printingLEXMARK INT INC·Filed 2001·Granted May 4, 2004·16 cites·19 claims
- 1174US6586759B1Method and apparatus for aligning an optical detecting deviceLEXMARK INT INC·Filed 2001·Granted Jul 1, 2003·11 cites·30 claims
- 1273US6742866B2Ink jet print head having offset nozzle arraysLEXMARK INT INC·Filed 2002·Granted Jun 1, 2004·13 cites·12 claims
- 1373US5518324APlaten to print head gap adjustment arrangementIBM·Filed 1993·Granted May 21, 1996·34 cites·11 claims
- 1472US7654630B2Method for decreasing sensitivity to errors in an imaging apparatusLEXMARK INT INC·Filed 2007·Granted Feb 2, 2010·3 cites·7 claims
- 1571US7431522B2Method for reducing banding in an imaging apparatusLEXMARK INT INC·Filed 2006·Granted Oct 7, 2008·4 cites·13 claims
- 1669US7178914B2Media pre-feed in intermittent printerLEXMARK INT INC·Filed 2004·Granted Feb 20, 2007·12 cites·15 claims
- 1769US6695426B2Ink jet printer improved dot placement techniqueLEXMARK INT INC·Filed 2002·Granted Feb 24, 2004·12 cites·22 claims
- 1869US6604808B2Method for determining the skew of a printhead of a printerLEXMARK INT INC·Filed 2001·Granted Aug 12, 2003·12 cites·28 claims
- 1968US6612685B1Method of selectively underfeeding print media in an ink jet printerLEXMARK INT INC·Filed 2002·Granted Sep 2, 2003·12 cites·16 claims
- 2067US7118191B2Apparatus and method for ink jet printing using variable interlacingLEXMARK INT INC·Filed 2004·Granted Oct 10, 2006·12 cites·16 claims
- 2165US5465107APrinthead drive system for serial printerLEXMARK INT INC·Filed 1993·Granted Nov 7, 1995·20 cites·17 claims
- 2264US7059698B1Method of altering an effective print resolution of an ink jet printerLEXMARK INT INC·Filed 2002·Granted Jun 13, 2006·9 cites·17 claims
- 2363US7815285B2Printhead having a plurality of print modesLEXMARK INT INC·Filed 2005·Granted Oct 19, 2010·2 cites·20 claims
- 2463US5349375AInk jet printer dot placement compensation methodLEXMARK INT INC·Filed 1992·Granted Sep 20, 1994·23 cites·18 claims
- 2562US6749288B2Jet head boxLEXMARK INT INC·Filed 2002·Granted Jun 15, 2004·8 cites·21 claims
- 2661US7753465B2Method for generating a reference signal for use in an imaging apparatusLEXMARK INT INC·Filed 2006·Granted Jul 13, 2010·2 cites·17 claims
- 2759US7625148B2Trough support ribs and method of useLEXMARK INT INC·Filed 2006·Granted Dec 1, 2009·1 cites·22 claims
- 2859US6563285B1Stepper motor control systemLEXMARK INT INC·Filed 2001·Granted May 13, 2003·7 cites·20 claims
- 2959US6396591B1Method of printing with a host-based printer using a rudimentary internal font without assistance from the host and with minimal printer memoryLEXMARK INT INC·Filed 2000·Granted May 28, 2002·6 cites·10 claims
- 3058US7140710B2Dot management for an imaging apparatusLEXMARK INT INC·Filed 2004·Granted Nov 28, 2006·6 cites·20 claims
- 3158US6796556B2Multi-function media eject system in an ink jet printerLEXMARK INT INC·Filed 2003·Granted Sep 28, 2004·5 cites·20 claims
- 3258US6762580B1Electric motor velocity controllerLEXMARK INT INC·Filed 2001·Granted Jul 13, 2004·6 cites·8 claims
- 3357US6923521B2Subcovered printing mode for a printhead with multiple sized ejectorsLEXMARK INT INC·Filed 2003·Granted Aug 2, 2005·5 cites·19 claims
- 3456US7604315B2Method for maintaining printhead performanceLEXMARK INT INC·Filed 2006·Granted Oct 20, 2009·1 cites·14 claims
- 3555US6938975B2Method of reducing printing defects in an ink jet printerLEXMARK INT INC·Filed 2003·Granted Sep 6, 2005·5 cites·20 claims
- 3654US6124696AProgrammable stepper motor controller and method thereforLEXMARK INT INC·Filed 1999·Granted Sep 26, 2000·16 cites·19 claims
- 3752US2005248644A1Method for enhancing perforation speedLEXMARK INT INC·Filed 2005·Application pending·0 cites
- 3852US2007102893A1Computer caddyMAYO RANDALL·Filed 2006·Application pending·0 cites
- 3951US7369267B2High resolution printing methodLEXMARK INT INC·Filed 2003·Granted May 6, 2008·2 cites·20 claims
- 4051US6747431B1Calibration technique for electric motorLEXMARK INT INC·Filed 2001·Granted Jun 8, 2004·6 cites·15 claims
- 4151US4319174AStepper motor drive systemIBM·Filed 1980·Granted Mar 9, 1982·11 cites·20 claims
- 4250US5790144AMethod of controlling an operating temperature of a printhead in an ink jet cartridge assemblyLEXMARK INT INC·Filed 1996·Granted Aug 4, 1998·11 cites·8 claims
- 4347US7083266B2Micro-miniature fluid jetting deviceLEXMARK INT INC·Filed 2002·Granted Aug 1, 2006·3 cites·33 claims
- 4447US6935795B1Method for reducing the effects of printhead carrier disturbance during printing with an imaging apparatusLEXMARK INT INC·Filed 2004·Granted Aug 30, 2005·3 cites·33 claims
- 4546US5688059ARegistration of paper location for multiple printingLEXMARK INT INC·Filed 1996·Granted Nov 18, 1997·9 cites·7 claims
- 4646US2007268525A1Simultaneous Individual and Coupled Error DiffusionHEYDINGER SCOTT MICHAEL·Filed 2006·Application pending·0 cites
- 4744US6640157B2Method for operating a media feed motor of a printerLEXMARK INT INC·Filed 2002·Granted Oct 28, 2003·2 cites·26 claims
- 4843US6166822AMethod of printing with a host based printer using an internal fontLEXMARK INT INC·Filed 1998·Granted Dec 26, 2000·9 cites·8 claims
- 4942US6629752B1Method of ink jet printing with enhanced shingling and printer apparatuses for the sameLEXMARK INT INC·Filed 1999·Granted Oct 7, 2003·7 cites·41 claims
- 5039US6637742B2Multi-function media eject system in an ink jet printerLEXMARK INT INC·Filed 2002·Granted Oct 28, 2003·0 cites·34 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →