Randall David Mayo
50Patents
12h-index
62Co-inventors
87Inventor score
Filing activity: Mar 31, 1980 → Mar 9, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5627572A | Programmable head type detection and maintenance system | Performing Operations; Transporting | 40 | Expired |
| US5563637A | Maintenance station for ink jet printhead | Performing Operations; Transporting | 32 | Expired |
| US5480240A | Print quality enhancement method and apparatus | Physics | 27 | Expired |
| US5518324A | Platen to print head gap adjustment arrangement | Performing Operations; Transporting | 21 | Expired |
| US7391525B2 | Methods and systems to calibrate media indexing errors in a printing device | Electricity | 21 | Expired |
| US5349375A | Ink jet printer dot placement compensation method | Performing Operations; Transporting | 18 | Expired |
| US6471319B1 | Method for synchronizing print start positions for an inkjet printer carriage | Performing Operations; Transporting | 17 | Expired |
| US6592203B1 | Subcovered printing mode for a printhead with multiple sized ejectors | Performing Operations; Transporting | 16 | Expired |
| US6565191B1 | Method of color shingling to reduce visible printing defects | Performing Operations; Transporting | 15 | Expired |
| US6502920B1 | Ink jet print head having offset nozzle arrays | Performing Operations; Transporting | 15 | Expired |
| US5465107A | Printhead drive system for serial printer | Performing Operations; Transporting | 13 | Expired |
| US7044574B2 | Method and apparatus for generating and assigning a cartridge identification number to an imaging cartridge | Performing Operations; Transporting | 12 | Expired |
| US6124696A | Programmable stepper motor controller and method therefor | Electricity | 9 | Expired |
| US7118191B2 | Apparatus and method for ink jet printing using variable interlacing | Performing Operations; Transporting | 7 | Expired |
| US4319174A | Stepper motor drive system | Electricity | 7 | Expired |
| US6742866B2 | Ink jet print head having offset nozzle arrays | Performing Operations; Transporting | 7 | Expired |
| US6729613B2 | Method for operating sheet pick and feed systems for printing | Performing Operations; Transporting | 7 | Expired |
| US5688059A | Registration of paper location for multiple printing | Performing Operations; Transporting | 6 | Expired |
| US5790144A | Method of controlling an operating temperature of a printhead in an ink jet cartridge assembly | Performing Operations; Transporting | 6 | Expired |
| US7178914B2 | Media pre-feed in intermittent printer | Performing Operations; Transporting | 6 | Expired |
| US6604808B2 | Method for determining the skew of a printhead of a printer | Performing Operations; Transporting | 6 | Expired |
| US6612685B1 | Method of selectively underfeeding print media in an ink jet printer | Physics | 6 | Expired |
| US6695426B2 | Ink jet printer improved dot placement technique | Performing Operations; Transporting | 6 | Expired |
| US7059698B1 | Method of altering an effective print resolution of an ink jet printer | Performing Operations; Transporting | 5 | Expired |
| US6563285B1 | Stepper motor control system | Performing Operations; Transporting | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.