James D Jensen

US Patent:

6973877, Dec 13, 2005

Filed:

Jan 6, 2004

Appl. No.:

10/752407

Inventors:

James B. Jensen - Woodburn OR, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41F001/54
B41F001/66

US Classification:

101483, 101484

Abstract:

A method for deriving and implementing one or more motion profiles is provided. In the method, at least one time constraint between a first motor controlled system in an automated device and a second motor controlled system in the automated device are identified. Known parameters of the first motor controlled system and the second motor controlled system are identified and supplied. A first motion profile for the first motor controlled system is created. A second motion profile for the second motor controlled system is created. The identified at least one time constraint is applied to the first and second motion profiles to constrain the first and second motion profiles to one another. The first and second motion profiles are solved to complete a solution having solution information to prepare for use by said first and second motor controlled systems. The solution information is post-processed for use by the first and second motor controlled systems.

US Patent:

7021739, Apr 4, 2006

Filed:

Nov 24, 2003

Appl. No.:

10/721842

Inventors:

Edward F. Burke - Lake Oswego OR, US
Barry D. Reeves - Lake Oswego OR, US
David L. Knierim - Wilsonville OR, US
James B. Jensen - Woodburn OR, US
Brent R. Jones - Tualatin OR, US
David D. Martenson - Oregon City OR, US
Lee D. Hills - Sherwood OR, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 29/393

US Classification:

347 19

Abstract:

Disclosed are methods for compensating for failed ink jets in an ink jet apparatus. The method in embodiments determines if one or more ink jets are nonfunctioning or have failed and substitutes for the one or more nonfunctioning ink jets by using one or more operational ink jets. The operational ink jets used are neighboring operational ink jets that fill in for the one or more failed ink jets. The one or more failed ink jets are disabled wherein a primary image pass is performed followed by one or more additional imaging passes to fill in for the one or more disabled ink jets by enabling the one or more neighboring operational ink jets. The additional imaging passes may be a right fill imaging pass, a left fill imaging pass or a combination of both.

US Patent:

7069849, Jul 4, 2006

Filed:

Jun 14, 2004

Appl. No.:

10/867455

Inventors:

Daniel C. Park - West Linn OR, US
James B. Jensen - Woodburn OR, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41F 17/00

US Classification:

101 35

Abstract:

An image transfer mechanism for a printer having a printer frame and an imaging drum attached to the printer frame includes a roller arm having a proximal end and a distal end, a transfer roller having a longitudinal axis, and a load arm having a proximal end and a distal end. The axis of the transfer roller is rotatably attached to the roller arm. The proximal end of the roller arm is attached to the load arm between the proximal end and the distal end of the load arm. The proximal end of the load arm is pivotally attached to the printer frame, and a load mechanism applies a load force to the distal end of the load arm to urge the load arm toward the imaging drum. An engaging mechanism selectively urges the distal end of the roller arm toward the imaging drum, which presses the load arm against the load force of the load mechanism.

US Patent:

7396107, Jul 8, 2008

Filed:

Aug 2, 2005

Appl. No.:

11/196565

Inventors:

Trevor J. Snyder - Newberg OR, US
David L. Knierim - Wilsonville OR, US
Christine M. Greiser - West Linn OR, US
James B. Jensen - Woodburn OR, US
Brent E. Fleming - Aloha OR, US
James B. Campbell - Beaverton OR, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B41J 2/15

US Classification:

347 41

Abstract:

A method of operating an ink jet printer including printing a first image having substantially solid fill regions on a transfer surface disposed on a print drum, printing a second image on the first image, wherein the second image comprises solid or dithered fill regions that correspond to portions of some of the solid fill regions of the interlaced image, and wherein the second image has a dot density that is less than a dot density of the first image.

US Patent:

20060197038, Sep 7, 2006

Filed:

Jun 13, 2005

Appl. No.:

11/151076

Inventors:

Daniel Park - West Linn OR, US
James Jensen - Woodburn OR, US

International Classification:

G01N 21/86

US Classification:

250559370

Abstract:

Automatically providing electronic sheet orientation information by moving the sheets in a sheet path past a multiple photodetectors array bar to provide electrical signals corresponding to the initial sheet orientations, where this photodetectors array bar is angularly mounted at a transverse but non-perpendicular angle to the sheet path so that differently positioned subsets of photodetectors may be activated by the leading edge of the sheets at different sheet movement positions. These signals may be compared at different time intervals and appropriately electronically analyzed to provide sheet skew, process and lateral orientation information which may be used to automatically control an sheet registration correction system, such as for a printer.

US Patent:

62477854, Jun 19, 2001

Filed:

Apr 23, 1999

Appl. No.:

9/298307

Inventors:

Brent R. Jones - Tualatin OR
David L. Knierim - Wilsonville OR
James B. Jensen - Woodburn OR

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2300

US Classification:

347 37

Abstract:

A print head drive mechanism and cooperating positioning assembly are provided. In one embodiment, the print head drive mechanism comprises a lead screw that is coupled to the print head and extends through the threaded hub of a gear. The gear is driven by a stepper motor through a pinion. The thread pitch of the lead screw matches the jet spacing in the print head to minimize positional offsets due to component irregularities and misalignments. A support cylinder extends from one face of the gear and includes a tapered nose that seats within a recess in a brace. The brace cooperates with two spaced apart legs to form a positioning assembly that is essentially non-extensible in an X-axis direction but freely pivotable in a direction perpendicular to the X-axis.

US Patent:

48083631, Feb 28, 1989

Filed:

Sep 4, 1987

Appl. No.:

7/093808

Inventors:

Joseph C. Walsh - Longmont CO
James W. Jensen - Boulder CO

Assignee:

Adolph Coors Company - Golden CO

International Classification:

B29C 5502
B29C 5318
B29C 6100
B29C 6102

US Classification:

2642884

Abstract:

An apparatus for treating a moving web of laminated composite material of the type having a relatively thin film layer adhered to a relatively thick paper layer for eliminating the tendency of the web to curl toward the film layer side thereof subsequent to being stored on a spool with the film layer of the web positioned inwardly of the paper layer of the web, the film layer and paper layer each having an exposed surface and an attached surface, the attached surfaces of the layers being adhered together, the paper layer having an outwardly positioned thickness portion which terminates at the exposed surface thereof, an inwardly positioned thickness portion which terminates at the attached surface thereof and an intermediately positioned thickness portion positioned between the outwardly positioned thickness portion and the inwardly positioned thickness portion, the outwardly positioned thickness portion being relatively stretched, the inwardly positioned thickness portion being relatively shrunk, the intermediately positioned thickness portion being relatively unstretched and unshrunk, the film layer being relatively shrunk through storage of the composite web on the spool, comprising: composite web supply means, film heating means, paper heating means; the stretching occurring in the inwardly positioned portion of the paper and in the film layer and the shrinking occurring in the outwardly positioned portion of the paper layer being of an amount whereby oppositely positioned portions of the film layer and the paper layer of the web are of substantially equal length in an unstressed state subsequent to treatment by the apparatus whereby the tendency of the composite web to curl toward the film layer side is eliminated.

US Patent:

6244686, Jun 12, 2001

Filed:

Apr 23, 1999

Appl. No.:

9/298644

Inventors:

James B. Jensen - Woodburn OR
Brent R. Jones - Tualatin OR
David L. Knierim - Wilsonville OR

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2300

US Classification:

347 37

Abstract:

A print head drive mechanism utilizing a lead screw is provided. In one embodiment, the print head drive mechanism comprises a lead screw that is coupled to the print head and extends through the threaded hub of a gear. The gear is driven by a stepper motor through a pinion. A support cylinder extends from one face of the gear and includes a tapered nose that seats within a recess in a brace. The thread pitch of the lead screw matches the jet spacing in the print head to minimize positional offsets due to component irregularities and misalignments. In another embodiment, the print head is coupled to at least one nut that is translated by a rotating lead screw, with the lead screw having a thread pitch that matches the jet spacing in the print head.

Address:

16753 L Cir, Omaha, NE 68135

VIN:

5FNRL38627B417222

Make:

HOND

Model:

ODYS

Year:

2007