Edwin A Hediger

48937401, Jan 16, 1990

Nov 21, 1988

7/274177

Edwin A. Hediger - Fairport NY
Michael Kenin - Rochester NY
Peter G. Izzo - Rochester NY

Eastman Kodak Company - Rochester NY

B65H 23025

226 23

Apparatus for controlling the lateral movement of a travelling web to automatically compensate for web conicity and angular deviation of the web velocity vector. A preferred embodiment of the apparatus comprises a steering roller about which a travelling web is at least in part entrained. An assembly supports the steering roller for rotation about its longitudinal axis, and mounts the steering roller for angular adjustment about a caster axis perpendicular to such longitudinal axis at the mid-point of the steering roller. The assembly is, in turn, supported for rotation about a gimbal axis intersecting, and perpendicular to, the caster axis. Lateral movement of a web supported on the steering roller is sensed relative to the steering roller in the direction of the longitudinal axis of the steering roller. The mechanism for sensing lateral movement of the web moves in a corresponding direction to the sensed lateral movement of the web. The sensing mechanism is interconnected with the supporting and mounting assembly for angularly adjusting the steering roller about the caster axis in response to movement of the lateral movement sensing mechanism, in a direction to counteract sensed lateral movement of the web.

51517396, Sep 29, 1992

Jul 29, 1991

7/737304

Edwin A. Hediger - Fairport NY

Eastman Kodak Company - Rochester NY

G03G 1506

355245

A dual augar development apparatus for use in an electrostatographic reproduction machine such as copier or printer, includes a pair of identical single piece auger devices mounted therein and each having a shaft and a plurality of integrally formed blade members so as to require no blade-member-to-shaft-assembly. A last blade member includes a cross-transfer member connected thereto and integrally formed therewith. The blade members are semi-elliptical and form a single straight row of such members on the shaft. The row is aligned circumferentially so as to result in intermittent augering of developer material in the development apparatus.

52353923, Aug 10, 1993

Jun 8, 1992

7/894990

Edwin A. Hediger - Fairport NY

Eastman Kodak Comany - Rochester NY

G03G 1514

355271

A reproduction apparatus that has an image-bearing member and an image transfer member includes a first drive assembly for driving the image-bearing member at a desired process velocity V1, and a second and separate drive assembly, including a DC servo motor, for driving the image transfer member in synchronization with the image-bearing member. The reproduction apparatus also includes a mechanism for engaging and disengaging the DC servo motor relative to the transfer member, first and second encoders for measuring in encoder counts the movements of the transfer member and of the image-bearing member, and controls including a logic and control unit that is connected to the encoders and to the servo motor for monitoring and controlling the operations of the reproduction apparatus. The reproduction apparatus further includes passive assembly for moving the transfer member at the process velocity when the servo motor is disengaged from the transfer member.

51247550, Jun 23, 1992

Jun 21, 1991

7/718479

Edwin A. Hediger - Fairport NY

Eastman Kodak Company - Rochester NY

G03G 1520

355285

An improved fixing assembly for fixing toners or the like on a receiving medium. The improved fixing assembly having a mechanical wide nip formed by a pair of nip forming belts with at least one of the belts being formed by multiple overlapping loops of cold rolled stainless steel. The ends of the stainless steel are secured to the loop adjacent to each end of the stainless steel. The stainless steel flexible formed belt may be coated and heated. Each belt is driven by a pair of internal friction drive rollers with the drive rollers being driven by a toothed belt engaging the drive rollers. The width of the nip is adjusted by changing the center distance between the friction drive rollers of the flexible belts.

48210510, Apr 11, 1989

Sep 1, 1988

7/239375

Edwin A. Hediger - Fairport NY

Eastman Kodak Company - Rochester NY

G01D 1500

346155

An optical LED printhead for hard copy printing using a photoconductive transfer system. The printhead includes a linear array of LED's formed by the side-by-side mounting of modular circuit tiles, each containing LED and driver chips. The tiles are bonded to a backing plate constructed of a material with the same thermal coefficient of expansion as the tiles. Slots at the ends and in the middle of the backing plate are aligned with pins in a heat sink of dissimilar material. Differential thermal expansion between the heat sink and the backing plate is controlled by the slot and pin arrangement to allow relative movement in predefined directions which relieve stress but which do not degrade the alignment of the LED's. A printed circuit board and the backing plate are fastened to the heat sink through spring loaded screws extending through oversized holes. Upon mounting, the circuit tiles are located in a rectangular opening in the printed circuit board.

52570711, Oct 26, 1993

May 24, 1991

7/705406

Edwin A. Hediger - Fairport NY

Eastman Kodak Company - Rochester NY

G03G 500

355212

An electrophotographic apparatus including an endless photoconductive belt member supported by a plurality of rollers. The photoconductive belt is pivotal about an axis of one of the plurality of rollers for movement into an operational position. Pivoting about the axis, into the operational position, assures that the photoconductive belt will be under tension and positioned accurately in relation to the various process stations of the electrophotographic apparatus. The photoconductive belt is also pivotal about the same axis to a belt replacement position. In the belt replacement position the photoconductive belt is in a slacken condition and positioned for replacement, removal, installation or adjustment with minimal chance of damage to the photoconductive belt or other process stations of the electrophotographic apparatus during replacement, removal, installation or adjustment. In moving into the belt replacement or operational position, other processing stations of the electrophotographic apparatus are simultaneously pivoted about a different axis out of and into operational relation respectively.

52203824, Jun 15, 1993

Dec 23, 1991

7/812141

Edwin A. Hediger - Fairport NY

Eastman Kodak Company - Rochester NY

G03G 1506

355245

A dual auger development apparatus for use in an electrostatographic reproduction machine such as copier or printer, includes a pair of identical single piece auger devices and each having a shaft and a plurality of integrally formed partial blade members so as to require no assembly of the blades to the shaft. Each auger device includes a radially extending cross-mixing vane which is integrally formed on the shaft. The cross-mixing vane formed as such is spaced circumferentially from the edges of the partial blades and extends continuously the full length of the shaft within the development housing. The cross-mixing vane includes a first length portion and a second length portion, The first length portion has a radial extension that is coextensive with that of the blade members and which is greater than that of the second length portion.

49135260, Apr 3, 1990

Sep 1, 1988

7/239252

Edwin A. Hediger - Fairport NY

Eastman Kodak Company - Rochester NY

G02B 702
G02B 604
G03B 2700

350252

Optical printhead for hard copy printers and copiers. The printhead includes a fiber optic lens array having a reinforcing and locating bar permanently bonded to the side and exact center of the lens. The bar has a dimension parallel to the axis of the fibers which is much more accurate than the length of the lens along the same axis. Centering of the lens array is easily and accurately accomplished by centering the bar. The bar also stiffens and straightens the lens array to maintain desired focal characteristics. The printhead also includes an accurately dimensioned mounting plate which is used to attach the printhead to the printer. A stress relieving structure is used to support the electronic circuitry and LED's in the printhead from a rigid heat sink.