Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775505 | Electrostatic image developing process with optimized setpoints | Eric C. Stelter, Joseph E. Guth, Edward M. Eck | 2004-08-10 |
| 6728503 | Electrophotographic image developing process with optimized average developer bulk velocity | Eric C. Stelter, Joseph E. Guth, Edward M. Eck, Ulrich Mutze | 2004-04-27 |
| 6724998 | Image forming apparatus with variable toning bias offset service utility | David E. Hockey, Anne F. Lairmore | 2004-04-20 |
| 6650848 | Image-forming device having on-line image quality assessment and related method | Alfred J. Gonnella, David E. Hockey | 2003-11-18 |
| 6611666 | Densitometer with improved accuracy for use in color image processing apparatus | Richard George Allen, William A. Hameister, Bradley A. Twait | 2003-08-26 |
| 6580880 | Electrophotographic process control and diagnostic system | David E. Hockey, Edward M. Eck | 2003-06-17 |
| 6526247 | Electrostatic image developing process with optimized setpoints | Eric C. Stelter, Joseph E. Guth, Edward M. Eck | 2003-02-25 |
| 6459859 | Service routine to identify causes for image artifacts in printed output | David E. Hockey | 2002-10-01 |
| 6449447 | Image-forming machine having charger cleaning activation after an arcing fault and related method | James A. Zimmer, Jr., George R. Walgrove, III | 2002-09-10 |
| 6442358 | Electrophotographic marking machine including a controller for the selective interruption and restart of a print mode operation and method | David E. Hockey | 2002-08-27 |
| 6427053 | Method and apparatus for monitoring parameters corresponding to operation of an electrophotographic marking machine | Edward M. Eck, Philip A. Stern, David E. Hockey | 2002-07-30 |
| 6370340 | Method and apparatus for monitoring parameters corresponding to operation of an electrophotographic marking machine | David E. Hockey | 2002-04-09 |
| 6360064 | Electrostatographic image-forming apparatus and method for reducing transfer roller artifact by parking transfer roller at or near seam on endless imaging member | Anne F. Lairmore, Alfred J. Gonnella | 2002-03-19 |
| 6337960 | Electrostatographic image-forming apparatus and method with control of image forming after cycle-up | James A. Zimmer, Jr., David E. Hockey | 2002-01-08 |
| 6295424 | Electrostatographic image-forming apparatus and method | Anne F. Lairmore, James D. Anthony, Philip A. Stern | 2001-09-25 |
| 6181886 | Toner replenishment and collection apparatus and method | David E. Hockey, Christopher S. Garcia, Philip A. Stern, James A. Zimmer, Jr. | 2001-01-30 |
| 6121986 | Process control for electrophotographic recording | Allen J. Rushing | 2000-09-19 |
| 5987271 | Method and apparatus for control of variability in charge to mass ratio in a development station | David E. Hockey, Jeffrey C. Blood, Kevin D. Lofftus | 1999-11-16 |
| 5937229 | Image forming apparatus and method with control of electrostatic transfer using constant current | George R. Walgrove, III | 1999-08-10 |
| 5862433 | Electrostatographic method and apparatus with improved auto cycle up | Alfred J. Gonnella, David E. Hockey, Jeffrey C. Blood | 1999-01-19 |
| 5839020 | Method and apparatus for controlling production of full productivity accent color image formation | Allen J. Rushing | 1998-11-17 |
| 5714936 | Apparatus and method for protecting a magnetic layer on photosensitive material | — | 1998-02-03 |
| 5631728 | Process control for electrophotographic recording | Allen J. Rushing | 1997-05-20 |
| 5582645 | Magnetic dispersion coating apparatus having high shear regions | Jeffrey A. Trest | 1996-12-10 |
| 5456944 | Magnetic dispersion coating method having high shear regions | Jeffrey A. Trest | 1995-10-10 |