Lexmark International, Inc.

Jason Lee Rowe

Edward Lynn Triplett

Brian Allen Blair

Niko Jay Murrell

Randall Lee Hudson

William Paul Cook

Douglas Andagan Baena, Jr

Jeffrey Lawrence Tonges

Christopher Dane Jones

David Erwin Rennick

Daniel Paul Cahill

Fei Chen

Kristi Ann Kappes

Larry Steven Foster

Jake Tia Pia

Kim Limpahan Balahan

Stacey Edward Balch

Robert Ryan Fresnoza Cruz

Irvin Langit Libres

Rommel Cabanet Balala

David Anthony Schneider

Michael David Maul

Darin Michael Gettelfinger

Dustin Daniel Fichter

Franklin Joseph Palumbo

Delbert Lester Elliott

Robert Galon Newman

Matthew Christopher Coriale

Gary Michael Tylicki

Philip David Jones

Meneleo De Castro Cedeno

Thom Jer Magdadaro Bacalso

Dennis Dela Paz

Hazel Joy C Peralta

Moneleo De Castro Cedeno

A mounting assembly for mounting a mirror to a frame in a laser scanning unit of an electrophotographic image forming device includes a bracket attached between the frame and the mirror. The bracket includes a body having a first surface and a second surface transverse to the first surface. A first set of protrusions extends from the first surface for defining a first gap between the frame and the bracket that limits adhesive thickness therebetween when the first surface of the bracket is adhesively attached to the frame. A second set of protrusions extends form the second surface for defining a second gap between the mirror and the bracket that limits adhesive thickness therebetween when the second surface of the bracket is adhesively attached to the mirror.

Mounting assembly for a mirror in a laser scanning unit of an image forming device

A collimation assembly includes a body, at least four light sources, and at least four collimation lenses. The body has inner surfaces that define at least four hollow portions extending through the body between opposed first and second sides thereof, each hollow portion having opposed first and second openings at the first and second sides of the body, respectively. Each light source is disposed at the first opening of one of the at least four hollow portions and controllable to emit a light beam therethrough. Each collimation lens is disposed at the second opening of one of the at least four hollow portions to receive the light beam emitted by the light source disposed at the first opening and diverge the light beam as the light beam passes through the collimation lens. The at least four light sources and the at least four collimation lenses are supported by the body.

Collimation assembly for an imaging device

A scan unit for an imaging device having a movable mirror and one or more light sources. A light beam generated by each light source is directed towards the movable mirror, movement of the mirror causing each light beam that is reflected by the mirror to follow a distinct scan pattern. An optical assembly is associated with each reflected light beam to form an optical path for each reflected light beam from the mirror. A housing in which the movable mirror, the one or more light sources and the optical assembly are secured has at least a portion made from electrically conductive material for shielding an interior of the housing from electromagnetic fields external to the housing. A light drive circuitry card is disposed in the interior of the housing and communicatively coupled to the one or more light sources for driving the one or more light sources.

Laser scan unit housing for an image forming device

A scan unit printhead of an imaging device having an adjustable mirror mounting. The scan unit includes a housing to which a rotatable minor, one or more light sources and an optical assembly are secured. The scan unit also includes a motor for driving the rotatable mirror, a plurality of fasteners for securing the motor to the housing and a plurality of spacers interposed between a base associated with the motor and the housing. The plurality of spacers resiliently bias the base of the motor away from the housing such that each of the plurality of spacers allows relative adjustment of a space between the base of the motor and the housing during a tightening and loosening operation of at least one of the to plurality of fasteners.

Adjustable mirror motor mounting for laser printhead

A housing for the scan unit printhead of an imaging device. The housing is substantially bowl shaped having a plurality of mounting surfaces extending inwardly toward a central region of the housing. The housing is constructed from a metal composition. The scan unit includes a plurality of light sources and an optical assembly operatively coupled thereto. The housing mounting surfaces support components of the optical assembly using an adhesive, without additional mounting hardware.

Laser scan unit housing for an imaging device

A laser scan unit for an imaging apparatus, including an optical paths having a plurality of optical components for directing and focusing a light beam. A component mounting mechanism is employed having a first member which is substantially fixed and resistant to movement, and a second member having an end portion which flexibly moves in response to forces acting thereon that are generated by changes in temperature due to differences in thermal expansion between the component and the first and second members.

Mounting mechanism for a component of an imaging apparatus, and methods of making and using same

An imaging apparatus having a printer frame, a media tray frame module disposed below the printer frame, and an anti-tip stability system including two alignment posts mounted substantially diagonally on the media tray frame module. The alignment posts have first surfaces and second surfaces where each second surface makes an acute angle ranging from about 10 degrees to about 20 degrees with a horizontal plane. The alignment posts provide anti-tip stability to the imaging apparatus by engaging with the printer frame when the printer frame is tilted at a first contact angle with respect to the alignment posts due to the application of an external force. The alignment posts also facilitate relatively easy separation of the printer frame from the media tray frame module.

Anti-tip stability system integral to an imaging apparatus

A system for manual adjustment of a pick mechanism between multiple positions transverse to a media feed direction associated with different widths of media such that pick forces are substantially balanced about the centerline of a media sheet to be picked. The system includes a shaft for receiving torque, a pick mechanism having a pick arm, and a pick arm adjustment mechanism coupled to the pick mechanism during translating of the pick arm. The pick arm is rotatably and slidably mounted at a first end thereof on the shaft. The pick arm adjustment mechanism comprises a translating member rotatably and slidably mounted on the shaft and coupled to a portion of the first end of the pick arm allowing the pick mechanism to be lifted from a topmost media sheet and allow manual translation of the translating member and pick arm to one of the plurality of predetermined positions.

Manually translatable pick mechanism for feeding sheets of media of different widths

A system that reduces pick skew and improves reliability of a picking mechanism by moving the pick arm to multiple locations across a media feed direction based on media size such that media pick forces are substantially balanced about the centerline of a media sheet to be picked. The system includes a pick arm slidably mounted on a shaft, at least one pick roller mounted to an end of the pick arm for contacting a top sheet of a stack of media sheets and driven to pick media sheets one at a time therefrom, and a pick arm translation mechanism for moving the pick arm along the shaft based on media sheet size of the media stack such that the at least one pick roller remains substantially evenly positioned about a centerline of a media sheet in a media feed direction.

System and device for feeding sheets of media

A media picking mechanism includes a pair of transmission shafts rotating in opposite directions. A housing is mounted around the pair of transmission shafts such that the first transmission shaft and the second transmission shaft are positioned substantially equidistant from a centerline of the housing. During a media picking operation, the rotation of the first transmission shaft of the pair of transmission shafts provides a first moment to the housing and rotation of a second transmission shaft of the pair of transmission shafts provides a second moment to the housing, which is equal and opposite to the first moment such that a net moment on the housing is near zero minimizing twisting of the housing. The two transmission shafts rotating in opposite directions, also results in substantially equal normal force to be applied by the first and second pick tires on the media.

Dual shaft media picking mechanism

A method for aligning a media sheet in a media path of an image forming apparatus includes aligning the media sheet against a first reference edge of an input tray. The media sheet may then move through an alignment nip which is constructed to laterally move the media sheet against a reference edge. The media sheet moves along the reference edge and becomes aligned prior to moving to a transport belt. The media sheet may then move through one or more transfer nips to receive one or more images.

Method for aligning a media sheet in an image forming apparatus

The present application is directed to devices and methods for moving media sheets within an image forming device. One embodiment includes a registration mechanism located along the media path. The mechanism may include a series of discrete registration nips that each includes a pair of drive rolls and idler roll. The nips are spaced at intervals across the media path. Guide ribs are arranged across the media path and may be positioned between the nips. The guide ribs further guide the media sheets through the registration mechanism and along the media path.

Devices and methods for aligning and moving a media sheet within an image forming device

Growing community of inventors

Richmond, KY, United States of America

Jason Lee Rowe