Donald C Buch, Age 821 Park Square Ln, Pittsford, NY 14534

6389252, May 14, 2002

Jun 20, 2001

09/885573

Randall J. Taylor - Bergen NY
Andreas G. Nagy - Rochester NY
Donald C. Buch - Rochester NY
Jeffrey A. Pitas - Rochester NY

Nexpress Solutions LLC - Rochester NY

G03G 1500

399121, 399107

In a printing apparatus a method and apparatus for applying a loading force to a first roller assembly to move a first roller of the first roller assembly into nip engagement with a second roller of a second roller assembly, the first roller assembly having a first fiducial element for locating the first roller and the second roller assembly having a second fiducial element complementary to the first fiducial element for locating the second roller, the first roller assembly being supported by a hook and pin connection engagement that supports a carriage, which carriage supports the first roller assembly for rotation about an axis external to the first roller. Upon applying of a loading force to the first roller assembly along a line which in a planar diagram of the first roller and load force passes between the center of gravity of the combination of the first roller assembly and the carriage and the first fiducial element to create a moment about the axis so that the carriage and the first roller assembly rotate together toward contact of the first fiducial element with the second fiducial element; and upon continuing to apply the loading force, the first fiducial element and the second fiducial element are moved to nest together with the hook and pin arrangement being clear of engagement.

6396524, May 28, 2002

May 18, 2000

09/574057

Allison S. Cooper - Webster NY
Robert A. Bovenzi - Rochester NY
Donald C. Buch - Penfield NY
Robert M. Peffer - Rochester NY
Paul H. Tam - Rochester NY
Jeffrey R. Ulreich - Rochester NY

NexPress Solutions LLC - Rochester NY

G03G 1500

347138, 347152, 399110, 399126

An electrophotographic printer/copier comprises a photoconductive drum assembly and an optical writer for projecting a rectilinear line of image information onto the drums photoconductive surface. Both subsystems share the same pair of mechanical fiducials for precisely positioning these subsystems in the printer frame. According to the invention, the optical writer is movably mounted on the fiducials to adjust the skew of an image line projected onto the drum.

6427059, Jul 30, 2002

Dec 29, 1999

09/474352

Donald Calvin Buch - Penfield NY
Robert Michael Peffer - Penfield NY
Michael Bidmon - Pittsford NY
Paul Hong Ping Tam - Pittsford NY

NexPress Solutions LLC - Rochester NY

G03G 1500

399110, 399107, 399117

Apparatus for precisely positioning the various work stations (e. g. , image-forming, cleaning and image-transfer stations) of an electrophotographic printer/copier relative to the outer surface of a rotating drum, e. g. , an image-forming drum or an image-transfer drum. Such apparatus comprises a pair of drum-support members, each having associated reference surface features adapted to mate with complimentary reference surface features on the individual work stations. Preferably, the placement of the reference surface features of the drum-support members are factory set to account for any idiosyncrasies (e. g. , run-out) of a drum supported by such members.

6493012, Dec 10, 2002

May 17, 2001

09/860120

Donald Buch - Penfield NY
Ingo Klaus Dreher - Kiel, DE
Heiko Hunold - Wattenbek, DE
Christopher Liston - Rochester NY
Patrick Metzler - Gettorf, DE
Michael Mordhorst - Strohbrück, DE
Stephan Walter Pareigis - Molfsee, DE
Robert Peffer - Penfield NY
Karlheinz Walter Peter - Molfsee, DE
Ralph Petersen - Kiel, DE
Frank Pierel - Kiel, DE
John Robert Thompson - Webster NY
Günther Voss - Barkelsby, DE

Nexpress Solutions LLC - Rochester NY

G03G 1501

347116, 358 118, 399301

A method and apparatus for setting register on a multicolor printing machine ( ) having color printing units ( ) allocated to various printing inks and having image cylinders ( ), equipment ( ) for producing images, in particular electrostatic latent images, on the image cylinders ( ), a carrier ( ) for printing substrates ( ) and image transfer points ( ) for the transfer of the color separations ( ) from the color printing units ( ) to the printing substrates ( ), an allocation of the image productions ( ) on the image cylinders ( ) to the printing substrates ( ) being carried out in order to achieve coincidence of register of the color separations ( ) in the print. This is achieved by a time-independent allocation of the positions of the image productions ( ) on the image cylinders ( ) to the printing substrates ( ) being carried out for at least one defined area ( ) of all the color separations ( ).

6591747, Jul 15, 2003

May 17, 2001

09/859845

Donald Buch - Penfield NY
Heiko Hunold - Wattenbek, DE
Michael Kowalczyk - Rochester NY
Christopher Liston - Rochester NY
Patrick Metzler - Gettorf, DE
Robert Peffer - Penfield NY
Karlheinz Walter Peter - Kiel, DE
John Robert Thompson - Webster NY

Nexpress Solutions LLC - Rochester NY

B41M 114

101211, 347116

Correcting register faults in a multicolor printing machine having a number of items of equipment for the digital production of color separations, wherein correction values are determined and assigned to angular positions of at least one image cylinder and, as a result, taken into account for the control of the production of the color separations on the image cylinder. Correction values are to be made available for the correction of register faults, which, with a fine graduation, make it possible to assign them to angular positions of machine elements in a repeatable way. This is achieved by determining circularity errors of machine elements which have an influence on the register, assigned to their angular positions and, from these, the correction values for the control of the production of the color separations on the at least one image cylinder being determined.

6625408, Sep 23, 2003

May 18, 2000

09/574054

Donald C. Buch - Penfield NY
Robert A. Bovenzi - Rochester NY
Allison A. Cooper - Webster NY
Robert M. Peffer - Rochester NY
Paul H. Tam - Rochester NY
Jeffrey R. Ulreich - Rochester NY

NexPress Solutions LLC - Rochester NY

G03G 1500

399117, 399118

A photoconductive drum assembly and an optical writer used in an electrophotographic printer/copier share the same mechanical fiducials for positioning these subsystems within the printer/copier frame or housing. Preferably, a pair of mounting pins used to position and support the drum assembly in a printer frame is also used to position the optical writer. As a result of this mounting scheme, a tolerance stacking problem is reduced and each subsystem can be removed from the printer housing without disturbing the position of the other. Further, the need for a mechanism to retract the optical writer from the vicinity of the drum surface to facilitate drum removal is eliminated, thereby lowering cost and increasing reliability.

7181153, Feb 20, 2007

Aug 25, 2004

10/925394

Donald S. Hensel - Rochester NY, US
Christopher S. Garcia - Rochester NY, US
D. Steven Kepner - Canandaigua NY, US
Gary E. Nichols - Fairport NY, US
Jeffrey R. Ulreich - Rochester NY, US
Thomas S. Albrecht - Canandaigua NY, US
Donald C. Buch - Rochester NY, US
Charles W. Spehrley - Key Colony Beach FL, US

Eastman Kodak Company - Rochester NY

G03G 15/00

399110, 399117

Apparatus for precisely positioning one or more of the work stations of a document printer/copier relative to an internal drum, including a first member, attached to either a work station or the internal drum, having two sections, each section having a reference surface forming an angle therebetween, an actuator for changing the included angle between the first reference surface and second reference surface, thus enabling the included angle to be increased or decreased, and a second member having a reference surface that mates with the pair of reference surfaces, associated with the other of the work station or the internal drum, so as to accurately adjust the work station relative to the internal drum dependent upon the included angle of the first reference surface and second reference surface.

2007005, Mar 15, 2007

Nov 1, 2006

11/591334

Donald Hensel - Rochester NY, US
Christopher Garcia - Rochester NY, US
D. Kepner - Canandaigua NY, US
Gary Nichols - Fairport NY, US
Jeffrey Ulreich - Rochester NY, US
Thomas Albrecht - Canandaigua NY, US
Donald Buch - Rochester NY, US
Charles Spehrley - Key Colony Beach FL, US

G03G 15/00

399395000

Apparatus for precisely positioning one or more of the workstations of a document printer/copier relative to an internal drum, including a first member, attached to either a workstation or the internal drum, having two sections, each section having a reference surface forming an angle therebetween, an actuator for changing the included angle between the first reference surface and second reference surface, thus enabling the included angle to be increased or decreased, and a second member having a reference surface that mates with the pair of reference surfaces, associated with the other of the workstation or the internal drum, so as to accurately adjust the workstation relative to the internal drum dependent upon the included angle of the first reference surface and second reference surface.