| Patent Number |
Title Of Patent |
Date Issued |
| 6881250 |
Tailored ink for piston driven electrostatic liquid drop modulator |
April 19, 2005 |
| The present invention relates to an ink composition including water, a solvent, a solvent-soluble dye, and a surfactant, where the ink exhibits a stable liquid microemulsion phase at a first temperature and a second temperature higher than the first temperature and has a conductivity of |
| 6530644 |
Method and apparatus for cleaning fluid ejection cartridge and maintenance station |
March 11, 2003 |
| An improved method of upgrading an image transfer engine such as, for example, an ink jet fluid printer or plotter using liquid ink, or a xerographic device using a liquid toner is disclosed. A removable ink flush tank/cartridge containing an ink cleaner is substituted for a removabl |
| 6406130 |
Fluid ejection systems and methods with secondary dielectric fluid |
June 18, 2002 |
| A fluid ejection system according to this invention operates on the principle of electrostatic or magnetic attraction. In various exemplary embodiments, the fluid ejection system includes a sealed diaphragm arrangement having at least one diaphragm portion and a diaphragm chamber def |
| 6176563 |
Ink marking device maintenance fluid replenishment system and method |
January 23, 2001 |
| A method of replenishing fluid used in an marking device maintenance station of an ink marking device includes obtaining condensate from ambient air through a condensation process and channeling the condensate to a reservoir in communication with the marking device maintenance statio |
| 5925177 |
Yellow ink for ink jet printing |
July 20, 1999 |
| Disclosed is an ink composition which comprises (a) water; (b) Acid Yellow 23 dye; and (c) urea. |
| 5837041 |
Ink cartridges having ink compositions with pigmented particles and methods for their manufactur |
November 17, 1998 |
| Ink cartridges containing ink compositions containing nanometer scale pigment particles are produced by preparing a pigment solution including a solubilized pigment-Lewis acid complex and an aprotic solvent system, separating the pigment from the pigment solution to form pigmented pa |
| 5579693 |
Curl control of printed sheets |
December 3, 1996 |
| A method and apparatus for controlling curl in a liquid ink printer. The liquid ink printer deposits an anticurl material on the side of a printed sheet opposite the one having printing deposited thereon. The anticurl material is a fluid which counteracts the steady state curl in the |
| 5500659 |
Method and apparatus for cleaning a printhead maintenance station of an ink jet printer |
March 19, 1996 |
| A cleaning apparatus for removing accumulated waste ink from a service or maintenance station of an ink jet printer includes a housing that defines a fluid storage chamber, and at least one output aperture that is formed in a wall of the housing, and communicates with the storage chamber |
| 5220346 |
Printing processes with microwave drying |
June 15, 1993 |
| Disclosed is a printing process which comprises applying in imagewise fashion to a substrate an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity |
| 4982237 |
Photoelectrophoretic printing machine |
January 1, 1991 |
| A photoelectrophoretic imaging apparatus in which a disposable, electrically biased blocking web has a portion thereof in contact with a moving heated member. A disposable imaging web, electrically biased to a polarity opposite to the polarity of the blocking web, contacts the heated |
| 4032339 |
Photosensitive composition containing vanadyl phthalocyanine for photoelectrophoretic imaging sy |
June 28, 1977 |
| Photosensitive composition for use in photoelectrophoretic imaging system. The particulate component of this composition includes vanadyl phthalocyanine pigment particles which have been treated with a polymer having structural units of the formula ##STR1## WHEREIN Z is a pendant |
