Peter O Evans

US Patent:

7449287, Nov 11, 2008

Filed:

Jan 30, 2008

Appl. No.:

12/022543

Inventors:

Narasimharao Dontula - Rochester NY, US
Terry A. Heath - Omaha NE, US
Peter G. Evans - Webster NY, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1/93

US Classification:

430536, 430201, 430950, 428 3219, 428 325, 428409, 428523

Abstract:

The present invention relates to a support and an imaging element utilizing the support, wherein the support comprises at least one nacreous resin layer, wherein the uppermost layer comprises nacreous pigment in a polyolefin matrix polymer, and wherein the FLOP value of the imaging element, and, hence, the support, is greater than 25. Also included is a method of making the nacreous support.

US Patent:

52803023, Jan 18, 1994

Filed:

Jun 5, 1992

Appl. No.:

7/894675

Inventors:

Bruce J. Rubin - Rochester NY
Peter G. Evans - Rochester NY
Dennis R. Kamp - Spencerport NY
Kevin E. Yousey - Brockport NY
James R. Flick - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41M 526

US Classification:

346762

Abstract:

The present invention is used in an image-recording apparatus wherein a substantially uniform layer of triboelectrically charged thermoplastic toner particles is deposited onto an imaging member. The toner particles are imagewise heated such that the heated toner particles are thermally tacked to the imaging member. The imaging member is then contacted with a mass of magnetic carrier particles to attract nonheated toner particles to the carrier particles, thereby removing nonheated toner particles from the imaging member and ladening the carrier particles with the removed toner particles. In accordance with the invention, upon using the carrier particles to attract and remove toner from the imaging member, the toner-laden carrier particles are mixed with a supply of carrier particles in which the average number of toner particles per carrier particle is lower than that of said toner-laden carrier particles. This produces a mixture of carrier particles in which the average amount of toner attracted to each carrier particle is substantially lower than that of the toner-laden carrier particles. This mixture is then subjected to a detoning step in which essentially all of the toner on each carrier particle is removed prior to the carrier particles being contacted to the imaging member again.

US Patent:

52413276, Aug 31, 1993

Filed:

Jun 1, 1992

Appl. No.:

7/891893

Inventors:

Bruce J. Rubin - Rochester NY
Peter G. Evans - Rochester NY
William Mey - Rochester NY
Robin A. Dispenza - Rochester NY
Dennis R. Kamp - Spencerport NY
Kevin E. Yousey - Brockport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41J 248
G03G 2100

US Classification:

346 76L

Abstract:

A method and apparatus for producing an image on an imaging member. The apparatus includes a magnetic brush for depositing a substantially uniform layer of thermoplastic toner particles onto the imaging member. A laser scanner device is utilized to imagewise heat selected toner particles such that the selected toner particles are lightly tacked to the imaging member. The imaging member is contacted by a second magnetic brush, which includes a supply of magnetic carrier particles preferably having a coercivity of greater than about 100 oersteds, at least two times to remove nonselected toner particles from the imaging member. Alternatively, the imaging member may be contacted by two separate magnetic brushes at least one time to remove nonselected toner particles from the imaging member.

US Patent:

52968987, Mar 22, 1994

Filed:

Aug 5, 1992

Appl. No.:

7/925005

Inventors:

Bruce J. Rubin - Rochester NY
Peter G. Evans - Rochester NY
Dennis R. Kamp - Spencerport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1504
G03G 1508
G03G 1509

US Classification:

355245

Abstract:

A uniform layer of charged toner particles is deposited onto a photoconductive layer of an imaging member. The toner particles are imagewise heated to imagewise tack selected ones of the particles to the photoconductive layer. The photoconductive layer is uniformly exposed to actinic radiation to discharge the toner particles while the layer is subjected to a gentle cleaning process which removes the nontacked toner particles.