James C Piotrowski

7356278, Apr 8, 2008

Mar 31, 2005

11/095116

James Christopher Piotrowski - Lexington KY, US
Donald Wayne Stafford - Georgetown KY, US
DeAndre Stevis Thompson - Lexington KY, US

Lexmark International, Inc. - Lexington KY

G03G 15/02

399100

The present invention relates to printing devices and particularly to devices and a method for the reduction of contamination on a charging device. A cleaning member is supplied that has a cleaning material affixed to a substrate. The cleaning material is positioned to contact the charge roller and the substrate is flexed to provide an elastic response.

7386249, Jun 10, 2008

Jun 7, 2005

11/146689

Reginald Keith Bethel - Lexington KY, US
Jarrett Clark Gayne - Lexington KY, US
James Christopher Piotrowski - Lexington KY, US

Lexmark International, Inc. - Lexington KY

G03G 15/08

399105

A roller capable for use as a developer roller in a printer including a roll body having a surface, wherein the roller provides a first surface flexibility (SF) when the roller rotates in one direction and a second surface flexibility (SF) when said roller rotates in a second direction.

7899384, Mar 1, 2011

Nov 5, 2008

12/265501

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

Lexmark International, Inc. - Lexington KY

G03G 21/00

399350, 399 98, 399 99, 399343

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.

20050095030, May 5, 2005

Nov 5, 2003

10/701853

Mark Foster - Lexington KY, US
James Piotrowski - Lexington KY, US

G03G015/08

399103000

Developer roller () is rotated rapidly for high speed printing, which can cause excessive heating at end seal (). Heat damage to toner () is avoided by providing gaps () under the seals () which reduce the stiffness of roller () and thereby reduce frictional heating.

20200031607, Jan 30, 2020

Jul 15, 2019

16/511934

- Indianapolis IN, US
James C. Piotrowski - Brownsburg IN, US

B65H 49/32
B29D 22/02
B65H 59/16
B65H 59/24

Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.

20170283210, Oct 5, 2017

Mar 31, 2017

15/476002

- Indianapolis IN, US
James C. Piotrowski - Brownsburg IN, US

B65H 49/32
B65H 59/24
B65H 59/16

Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.