Yonglin L Xie

6412938, Jul 2, 2002

Jun 16, 2000

09/594689

Roger Guy Markham - Webster NY
Yonglin Xie - Webster NY
William G. Hawkins - Webster NY

Xerox Corporation - Stamford CT

G01D 1100

347100, 40012411, 4001241, 40012409

Printing systems and methods that reduce inter-color bleeding between dark and light colored inks without losing productivity of a color ink jet printer by distributing the printing of a total amount of black ink required in a single swath over multiple passes while each of the color inks required for the same swath is printed in a single pass. For example, the print method may print a single swath by printing portions of the slow dry black ink in three passes while printing each of the fast dry color inks in single passes.

6527355, Mar 4, 2003

Aug 29, 2001

09/682392

Qing Yang - Fairport NY
Yonglin Xie - Fairport NY

Xerox Corporation - Stamford CT

B41J 2938

347 14, 347 10, 347 11, 347 17, 347 60

A method and apparatus prevents banding defects caused by drop mass variations in an ink jet printer. The ink jet printer uses different pre-pulse sequences for drop ejection depending on print head temperature. Each of the different pre-pulse sequences is associated with a corresponding temperature range. Boundaries between adjacent temperature ranges are separated by critical temperatures. A determination is made as to whether a change in the print head temperature constitutes, or is part of, a temperature change that exceeds a predetermined threshold change amount, prior to determining whether to change the pre-pulse sequence.

6666535, Dec 23, 2003

Jan 16, 2002

10/046150

Yonglin Xie - Fairport NY
Roger G. Markham - Webster NY

Xerox Corporation - Stamford CT

G06F 312

347 5, 358 11

A method and apparatus prevents satellite induced banding caused in bi-directional printing in which a print head alternatively moves in a first printing direction and in a second printing direction opposite to the first printing direction. The ink jet printer includes a controller that performs at least one of (i) selectively removing pixels in the first printing direction in order to lighten an image, and (ii) selectively adding pixels in the second printing direction in order to darken the image.

7857422, Dec 28, 2010

Jan 25, 2007

11/626965

Christopher N. Delametter - Rochester NY, US
John A. Lebens - Rush NY, US
David P. Trauernicht - Rochester NY, US
James M. Chwalek - Pittsford NY, US
Yonglin Xie - Pittsford NY, US
Gary A. Kneezel - Webster NY, US
Christopher R. Morton - Rochester NY, US
Cathie J. Burke - Rochester NY, US

Eastman Kodak Company - Rochester NY

B41J 2/15

347 40

A liquid ejector includes a structure defining a chamber. The chamber includes a first surface and a second surface. The first surface includes a nozzle orifice. A drop forming mechanism is located on the second surface of the chamber opposite the nozzle orifice. A first liquid feed channel and a second liquid feed channel are in fluid communication with the chamber. A first segment of a segmented liquid inlet is in fluid communication with the first liquid feed channel and a second segment of the segmented liquid inlet is in fluid communication with the second liquid feed channel.

7914109, Mar 29, 2011

Nov 26, 2007

11/944658

Yonglin Xie - Pittsford NY, US
Michael J. Piatt - Dayton OH, US
Joseph Jech, Jr. - Webster NY, US
Qing Yang - Pittsford NY, US

Eastman Kodak Company - Rochester NY

B41J 2/015
B41J 2/07
B41J 2/105

347 21, 347 74, 347 82

A liquid dispenser includes a liquid supply channel, a liquid supply adapted to feed a stream of liquid through the supply channel, a liquid return channel adapted to receive liquid from the supply channel, a liquid dispensing outlet opening, and a diverter member selectively movable into the supply channel to divert droplets to the dispensing outlet opening. The liquid flows from the liquid supply channel to the liquid return channel by Coanda effect when not diverted. The motion of the diverter member is substantially orthogonal to and opposes the direction of liquid flow, so that energy associated with moving the diverter member imparts no energy to the diverted droplets. The energy associated with moving the diverter member is less than 100 nJ per pL droplet volume. In some embodiments, the energy associated with moving the diverter member is less than 10 nJ per pL droplet volume.

7914121, Mar 29, 2011

Feb 1, 2008

12/024360

Yonglin Xie - Pittsford NY, US
Michael J. Piatt - Dayton OH, US
Joseph Jech, Jr. - Webster NY, US
Qing Yang - Pittsford NY, US

Eastman Kodak Company - Rochester NY

B41J 2/04
B41J 2/105

347 54, 347 82

A liquid dispenser includes a liquid supply channel, a liquid supply adapted to feed a stream of liquid through the supply channel, a liquid return channel adapted to receive liquid from the supply channel, a liquid dispensing outlet opening, and a diverter member forming at least a portion of a wall of the liquid supply channel, said diverter member being selectively movable to form a convex surface along which liquid remains attached, thereby to divert droplets from the supply channel through the dispensing outlet opening. The motion of the diverter member is substantially orthogonal to the direction of liquid flow, so that energy associated with moving the diverter member imparts no energy to the diverted droplets. The energy associated with moving the diverter member is less than 100 nJ per pL droplet volume.

7938517, May 10, 2011

Apr 29, 2009

12/431826

Yonglin Xie - Pittsford NY, US
Carolyn R. Ellinger - Rochester NY, US
Qing Yang - Pittsford NY, US

Eastman Kodak Company - Rochester NY

B41J 2/09

347 77

A method of printing and an apparatus for controlling the directionality of liquid emitted from nozzles of a printhead are provided. Example embodiments of the apparatus include directionality control of liquid jets or liquid drops using a liquid jet directionality control mechanism. Example embodiments of the liquid jet directionality control mechanism include asymmetric energy application device configurations, nozzle geometry configurations, liquid delivery channel geometry configurations, or combinations of these configurations.

7938522, May 10, 2011

May 19, 2009

12/468075

Yonglin Xie - Pittsford NY, US
Qing Yang - Pittsford NY, US
Shan Guan - Dublin OH, US

Eastman Kodak Company - Rochester NY

B41J 2/185

347 90

A printhead includes a catcher and a negative pressure source. The catcher includes a liquid drop contact structure. The liquid drop contact structure includes a plurality of pores, each of the plurality of pores having a substantially uniform size when compared to each other. The plurality of pores have a critical pressure point above which air can displace liquid from the plurality of pores. The negative pressure source is in fluid communication with the plurality of pores of the liquid contact structure. The negative pressure source includes a pressure regulator to control the negative pressure such that the negative pressure remains below the critical pressure point of the plurality of pores of the liquid drop contact structure.