Douglas P Herrmann

US Patent:

6736394, May 18, 2004

Filed:

Sep 6, 2002

Appl. No.:

10/237362

Inventors:

Douglas K. Herrmann - Webster NY
Mark R. Halvonik - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B65H 702

US Classification:

271249, 271228

Abstract:

A sheet lateral registration system, especially for high speed printer print media, which can also provide sheet deskewing as well as lateral sheet registration, having substantially increased lateral translation movement re-centering time for the lateral sheet registration system by utilizing at least two lateral shifting rollers having at least two different radii which provide automatic nip closings and openings in their rotations (relative to opposing idlers), with larger radius circumferential lengths coordinated to the downstream distance of the subsequent sheet acquisition system. Additionally disclosed are coordinated position non-slip sheet feeding nips which may be positioned in the paper path between these dual radius deskewing and lateral registration rollers and the image transfer station of the printer.

US Patent:

6817609, Nov 16, 2004

Filed:

Oct 8, 2002

Appl. No.:

10/267713

Inventors:

Mark R. Halvonik - Rochester NY
Douglas K. Herrmann - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B65H 702

US Classification:

271228, 271227, 271259

Abstract:

A sheet registration system for a sheet transport path of a reproduction apparatus providing positive feeding yet lateral registration of a wide range of different image substrate sheets. Independent sheet transport units with plural radius sheet feed rollers spaced along the sheet transport path engage sheets being fed to provide positive feeding of even very short sheets from one sheet transport unit to another, yet provide automatic opening of the nips of selected units to allow lateral registration movement of even a very long sheet in the downstream lateral sheet registration system. The same drive motor rotatably driving each sheet transport unit is controlled in rotational position to selectively open the number of open sheet feeding nips needed for the lateral registration movement of that particular sheet length. The mating idlers for the sheet feed rollers need not be moved to open the nips.

US Patent:

6819906, Nov 16, 2004

Filed:

Aug 29, 2003

Appl. No.:

10/652106

Inventors:

Douglas K. Herrmann - Webster NY
Bruce D. Caryl - Fairport NY
Timothy M. Davis - Macedon NY
Richard P. Ficarra - Macedon NY
Richard J. Milillo - Fairport NY
Matthew J. Ross - Walworth NY
Alicia K. Schwenk - Penfield NY
Piotr Sokolowski - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1500

US Classification:

399368, 399361, 399403, 400624, 400626, 270 5811, 270 5813

Abstract:

A sheets sets compiling and stacking system for the output of a printer, in which the seriatim output of printed sheets may be accumulated and neatly stacked on a temporary sheets supporting system until the desired number of sheets for that set (e. g. all the pages of a collated document) is accumulated (compiled). The temporary sheets supporting system may then automatically open to drop each completed or compiled set of sheets, but with positive alternate side set clamping control against sheet scattering or skewing, dropping only one side of one set at a time, by a short distance, down onto a multiple sets stacking system, such as a self-lowering elevator stacking tray, so as to provide reduced set scattering or skewing of the sheets within the sets, and/or between sets.

US Patent:

7021617, Apr 4, 2006

Filed:

Dec 22, 2003

Appl. No.:

10/740491

Inventors:

Douglas K. Herrmann - Webster NY, US
Timothy M. Davis - Macedon NY, US
Matthew J. Ross - Walworth NY, US
Brian J. Dunham - Webster NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 15/00

US Classification:

270 5811, 399369, 400624, 400626, 294104, 294111

Abstract:

A substrate compiling system includes an actuator, cable and tamper device. The tamper device includes a clamp assembly. The clamp assembly is retracted and extended. The clamp assembly can be used to clamp an edge of each compiled set of substrates and transfer the compiled set to a stacking tray, platform or the like. The clamp assembly may remain in an extended position until all other substrate supporting structures no longer support the substrates and an opposing unclamped edge of the compiled set engages the stacking tray below.

US Patent:

7334789, Feb 26, 2008

Filed:

Apr 27, 2005

Appl. No.:

11/115443

Inventors:

Douglas K. Herrmann - Webster NY, US
Richard V. Williams - Rochester NY, US
Steven D. Olson - Rochester NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B65H 1/00

US Classification:

271145, 271147, 271157, 271162

Abstract:

In a sheet stacking and unloading system in which sheets are stacked on a stacking tray which is then moved from its sheet stacking position to an unloading position for removing the sheet stack from the stacking tray, and the stacking tray has a sheet stacking surface partially interrupted by at least one handhold area for allowing manual lifting access underneath a portion of a stack, there is automatically inserted into the handhold area at least one supplemental sheet stack supporting member to provide supplemental sheet stacking support, preventing the sheets from sagging in those areas, which supplemental sheet stack supporting member is automatically removed from the handhold area when the stacking tray is moved to its unloading position.

US Patent:

7494121, Feb 24, 2009

Filed:

Mar 7, 2006

Appl. No.:

11/370509

Inventors:

Douglas K. Herrmann - Webster NY, US
Richard P. Ficarra - Macedon NY, US
Tina M. Burns - Rochester NY, US
Bruce D. Caryl - Fairport NY, US
Robert F. Rubscha - Fairport NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B65H 31/00

US Classification:

271207, 271209, 271220

Abstract:

A system and method of stacking printed sheets with sheet curl stacking problems in an automatically variable configuration stacking system having a spaced array of repositionable initial sheet supporting surfaces providing a generally planar initial stack supporting configuration on which a limited amount of sheets initially stack, and then, in response to stacking additional sheets in said system, the stacking system automatically changes to a different, arcuate, stack supporting configuration by automatically lowering at least some of the spaced array of initial sheet supporting surfaces to arcuately bend the curled sheets in an arcuate direction transverse the sheet curl direction on a fixed stacking surface that is arcuate transversely of the sheet curl direction.

US Patent:

7686299, Mar 30, 2010

Filed:

Jun 26, 2008

Appl. No.:

12/146854

Inventors:

Douglas K. Herrmann - Webster NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B65H 7/02

US Classification:

271249, 271228

Abstract:

This is a paper registration system that allows for a lateral reset while the paper is present in the nip space. By separating the nips, the carriage can move to reset position for the next sheet while the previous sheet is still present in the carriage. In addition, the configuration of the system of the invention is reduced or elimination of reaction forces on the carriage lead screw is provided. The registration embodiments of the present system are especially useful in a high speed marking system.

US Patent:

7845635, Dec 7, 2010

Filed:

Nov 19, 2008

Appl. No.:

12/273991

Inventors:

Douglas K. Herrmann - Webster NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B65H 7/02

US Classification:

271228, 271227, 271226

Abstract:

Methods and systems feed media sheets along a media path within an apparatus in a media path direction from a media source to a destination and align the media sheets as the media sheets travel along the media path using a media alignment unit. The methods and systems move the media alignment unit in a direction perpendicular to the media path direction using movable supports to position the media alignment unit at a location equidistant from sheet width edges of the media sheets.