| Patent Number |
Title Of Patent |
Date Issued |
| 5334474 |
Dry toner with mixed azo dye charge control agent |
August 2, 1994 |
| A dry toner having Zapon Yellow 141 as a charge control agent, dispersed moderately in the toner. Zapon Yellow 141 is about 95% by weight Solvent Yellow 81 and about 5% by weight Solvent Orange 56. |
| 4589080 |
Apparatus and method for predicting failure in a copier's paper path |
May 13, 1986 |
| Selected points in a copier are monitored by signal lines connected to a computer. If a signal is detected on a signal line, the time of occurrence is stored in the computer's memory at a location associated with the point that caused the signal. Eventually an array of the times of opera |
| 4434220 |
Electrophotographic toner and carrier |
February 28, 1984 |
| A developer material comprising toner particles and coated carrier beads for use in developing images in an electrostatographic device is disclosed. The toner particles are initially classified according to a size distribution wherein less than 15% by weight are greater than 16 micro |
| 4284701 |
Electrophotographic toner of specific size distribution |
August 18, 1981 |
| A toner material for use in developing images in an electrostatographic device is disclosed. The toner particles are initially classified according to a size distribution wherein less than 15% by weight are greater than 16 microns, between 7 and 15% by weight are less than 5 microns |
| 4161923 |
Electrophotographic developer with carrier overflow control |
July 24, 1979 |
| A magnetic-brush developer for use in an electrophotographic machine wherein the magnetic brush is used to transport toner-coated carrier particles to an elevated development zone from a pickup zone. A path for so moving the carrier is provided between the magnetic brush roll and an |
| 3999514 |
Magnetic brush developer |
December 28, 1976 |
| An auger fed magnetic brush developer wherein two parallel augers continuously recirculate the developer mix and cause the mix to be enriched with toner prior to its being returned to the magnetic brush roll.A supply auger communicates with the brush roll along its entire length and |
