Eastman-kodak Company

Nexpress Solutions, Inc.

Robert A Bovenzi

Jean F Depatie

Martin P Farcella

Teresa C Mayer

Robert Michael Peffer

Donald Calvin Buch

Jeffrey R Ulreich

Paul H Tam

Svetlana Reznik

Michael Donovan Dunn

Allison A Cooper

Allison S Cooper

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.

Pin mount for optical writer/image-recording element in a document printer/copier

An electrophotographic printer/copier comprises a photoconductive drum assembly and an optical writer for projecting a rectilinear line of image information onto the drum's 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.

Skew adjustment for optical writer in a document printer/copier

According to the present invention, an aperture/shutter system comprises a stator, a homogeneous rotor and at least one shutter blade. The rotor is located adjacent to the stator and has at least one positioning feature; and the shutter blade has a complimentary feature coupled directly to the positioning feature so as to be directly rotatable by the rotor.

Aperture/shutter system with a motor component

An aperture/shutter system defining an optical path comprises a shutter mechanism operable at a first state to selectively block light along the optical path and a second state to allow light along the optical path; and a motor including a stator and an annular rotor. The rotor is rotably supported within the stator by a support that is (i) stationary with respect to the stator and (ii) engages an inner surface of the rotor. The rotor is coupled to the shutter mechanism to move the shutter mechanism between the first state and the second state.

Aperture/shutter system and a stepper motor for use therein

According to one aspect of the present invention, an imaging apparatus includes an annular motor with a central opening and a plurality of lens elements positioned inside the central opening. The motor includes a stator and a homogeneous cylindrical rotor. This rotor is positioned inside the stator and is 0.5 mm to 1.5 mm thick and 2.5 mm to 5 mm long. According to one embodiment of the present invention the rotor is characterized by an outer cylindrical surface defined by its circumference. The rotor has a plurality of magnetic poles, and the ratio of the circumference of the outer cylindrical surface to the number of magnetic poles is between 1 and 2.

Imaging apparatus with a motor component

An aperture/shutter mechanism includes one or more shutter blades moveable to various aperture openings between a fully open and closed position. At least one damping member has a damping surface in continuous frictional contact with at least a portion of a surface of the one or more shutter blades to substantially prevent oscillation of the one or more shutter blades during movement to the various aperture openings between the fully open and closed positions.

Growing community of inventors

Rochester, NY, United States of America

Robert A Bovenzi