Matthew D Heid

US Patent:

7899384, Mar 1, 2011

Filed:

Nov 5, 2008

Appl. No.:

12/265501

Inventors:

Matthew David Heid - Simpsonville KY, US
James Christopher Piotrowski - Lexington KY, US
Joshua Carl Poterjoy - Lexington KY, US
Donald Wayne Stafford - Lexington KY, US

Assignee:

Lexmark International, Inc. - Lexington KY

International Classification:

G03G 21/00

US Classification:

399350, 399 98, 399 99, 399343

Abstract:

An image forming equipment, e. g. , a laser printer includes a photoconductive (PC) drum and an associated charge roller and incorporates a conductive polymer cleaner blade having an electrical potential to sufficiently charge contamination particles on the PC drum to electrically repel from a charged surface, such as the charge roller.

US Patent:

8396381, Mar 12, 2013

Filed:

Nov 13, 2009

Appl. No.:

12/618444

Inventors:

Matthew D. Heid - Simpsonville KY, US
Kevin Dean Schoedinger - Lexington KY, US
David John Mickan - Lexington KY, US

Assignee:

Lexmark International, Inc. - Lexington KY

International Classification:

G03G 15/00

US Classification:

399 38, 399 81

Abstract:

Generally, an imaging device is capable of applying respective EP engine settings to different zones within a page of media. In an example embodiment, a method includes printing in first and second zones on a page of media using first and second EP engine settings that are respectively associated with the first and second zones. The imaging device prints in the first zone on the page of media based on a first EP engine setting that is associated with the first zone. The imaging device switches from the first zone on the page of media to the second zone on the page of media responsive to a size indicator. The imaging device prints in the second zone on the page of media based on a second EP engine setting that is associated with the second zone.

US Patent:

20080187856, Aug 7, 2008

Filed:

Feb 1, 2007

Appl. No.:

11/670076

Inventors:

Scott Moreland Broce - Longmont CO, US
Robert Joseph Firmature - Thornton CO, US
Yueping Fu - Longmont CO, US
Matthew David Heid - Simpsonville KY, US
Lance Tisdale Hoshiko - Longmont CO, US
James Craig Minor - Longmont CO, US
Karen Eileen Zrebiec - Lafayette CO, US

International Classification:

G03G 9/087

US Classification:

4301104, 43013721

Abstract:

The present invention relates to controlling the mass flow of toner in an image forming device or a toner cartridge. The toner composition includes extra particulate additives including a conductive additive. The extra particulate additives may also include relatively small silica particles or relatively large silica.

US Patent:

20120269529, Oct 25, 2012

Filed:

Apr 25, 2011

Appl. No.:

13/093513

Inventors:

Matthew David Heid - Simpsonville KY, US
David John Mickan - Lexington KY, US
Kevin Dean Schoedinger - Lexington KY, US

International Classification:

G03G 15/16

US Classification:

399 66

Abstract:

An electrophotographic imaging apparatus includes a feeding tray to feed a media sheet along a feed path in a process direction; a media sensor disposed on the feed path and triggered or changes state when a leading edge and a trailing edge of the media sheet arrives at the media sensor; an image carrying member adjacent to the media sensor and carrying a toner image thereon, and an transfer roll abuttingly coupled with the image carrying member to facilitate the transfer of the toner image from the image carrying member onto the media sheet. The electrophotographic imaging apparatus includes a controller for adjusting the setting of transfer roll voltage values based on the location of an image area on the media sheet. Further disclosed is a method for reproducing an original image on the media sheet using variable timing of transfer voltages.

US Patent:

20130170876, Jul 4, 2013

Filed:

May 10, 2012

Appl. No.:

13/468109

Inventors:

Stephen Andrew Brown - Lyndhurst OH, US
James Anthany Carter - Lexington KY, US
Gregory Alan Cavill - Winchester KY, US
Matthew David Heid - Simpsonville KY, US
Benjamin Keith Newman - Lexington KY, US
Joshua Carl Poterjoy - Georgetown KY, US
Matthew Russell Smither - Lexington KY, US
Christopher G. Vowels - Versalles KY, US

International Classification:

G03G 15/08

US Classification:

399284

Abstract:

A removable unit for an electrophotographic imaging device includes a housing having an opening, a rotatable roll disposed near the opening and adjacent to a bottom of the housing and a blade assembly coupled to the housing. The blade assembly includes a support bracket secured to a wall defining at least a part of the opening of the housing, and a blade member coupled to the support bracket and being positioned in the removable unit so that a distal end portion of the blade member engages with the rotatable roll. The housing, the blade assembly, and a portion of a surface of the rotatable roll define a substantially sealed enclosure for containing toner therein.

US Patent:

20230060882, Mar 2, 2023

Filed:

Jul 22, 2022

Appl. No.:

17/871594

Inventors:

- LEXINGTON KY, US
WEIMEI LUO - LOUISVILLE CO, US
LAURA LEE KIERSTEIN - ERIE CO, US
MATTHEW DAVID HEID - LOUISVILLE KY, US
MARK THOMAS BELLINO - LOVELAND CO, US

International Classification:

G03G 5/147

Abstract:

An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a crosslinkable siloxane, an acrylic polymer with pigment affinic groups, nano metal oxide particles sized less than 400 nm in combination with a urethane acrylate resin having at least 6 functional groups. The outermost layer of an organic photoconductors is coated with the overcoat formulation of the present invention then cured. The resulting cured overcoated organic photoconductor has improved wear resistance and importantly does not negatively altering the electrophotographic properties of the organic photoconductor.

US Patent:

20230055807, Feb 23, 2023

Filed:

Jul 22, 2022

Appl. No.:

17/871657

Inventors:

- LEXINGTON KY, US
WEIMEI LUO - LOUISVILLE CO, US
LAURA LEE KIERSTEIN - ERIE CO, US
MATTHEW DAVID HEID - LOUISVILLE KY, US
MARK THOMAS BELLINO - LOVELAND CO, US

International Classification:

G03G 5/147

Abstract:

An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a crosslinkable siloxane, an acrylic polymer with pigment affinic groups, nano metal oxide particles sized less than 400 nm in combination with a urethane acrylate resin having at least 6 functional groups. The outermost layer of an organic photoconductors is coated with the overcoat formulation of the present invention then cured. The resulting cured overcoated organic photoconductor has improved wear resistance and importantly does not negatively altering the electrophotographic properties of the organic photoconductor.

US Patent:

20230055873, Feb 23, 2023

Filed:

Aug 11, 2021

Appl. No.:

17/399722

Inventors:

- Lexington KY, US
WEIMEI LUO - LOUISVILLE CO, US
LAURA LEE KIERSTEIN - ERIE CO, US
MATTHEW DAVID HEID - LOUISVILLE KY, US
MARK THOMAS BELLINO - LOVELAND CO, US

International Classification:

G03G 5/147

Abstract:

An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a crosslinkable siloxane, an acrylic polymer with pigment affinic groups, nano metal oxide particles sized less than 400 nm in combination with a urethane acrylate resin having at least 6 functional groups. The outermost layer of an organic photoconductors is coated with the overcoat formulation of the present invention then cured. The resulting cured overcoated organic photoconductor has improved wear resistance and importantly does not negatively altering the electrophotographic properties of the organic photoconductor.