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Lexmark International Inc patents


Recent patent applications related to Lexmark International Inc. Lexmark International Inc is listed as an Agent/Assignee. Note: Lexmark International Inc may have other listings under different names/spellings. We're not affiliated with Lexmark International Inc, we're just tracking patents.

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System and methods of capturing medical imaging data using a mobile device

Methods for associating medical images to a patient using a mobile image-capturing device and transmitting the medical images to a storage location are disclosed. One example method includes accessing by a user identifying information associated with a patient through an electronic health record (ehr) application installed in the mobile device, launching a second application on the mobile device from the ehr application, and upon the launching of the application from the ehr application, transmitting the patient identifying information accessed by the user from the ehr application to the second application. ... Lexmark International Inc

System and methods of capturing medical imaging data using a mobile device

Methods for capturing medical images associated with a patient using a mobile image-capturing device are disclosed. One example method includes accessing patient identifying information through an electronic health record (ehr) application installed in the mobile image-capturing device. ... Lexmark International Inc

System and methods for dynamically converting non-dicom content to dicom content

A method of dynamically converting a document from a non-dicom format to a dicom format includes receiving a query for use in searching for the document from one or more repositories, searching the one or more repositories for the document that matches the query, receiving from the one or more repositories one or more document results of the searching, receiving from a user a request for retrieval of at least one document from the one or more document results of the searching, determining if the at least one document requested for retrieval is in the non-dicom format, upon positive determination, converting the at least one document requested for retrieval from the non-dicom to the dicom format, and sending the at least one converted document to the user.. . ... Lexmark International Inc

System and methods of proactively searching and continuously monitoring content from a plurality of data sources

A method for monitoring content from a plurality of data sources includes performing an initial search for the content by receiving a keyword to be used in searching for the content from the data sources, searching the plurality of data source for the content associated with the keywords, preventing an action to be performed on the one or more relevant content identified to be associated with the keyword, and notifying one or more users regarding the relevant content that is be associated with the keywords. After performing the initial search for the content, the method may continuously monitor the plurality of data sources to determine if the data sources generate new content that is associated with the keywords and preventing an action to be performed on the new content determined to be associated with the keyword.. ... Lexmark International Inc

Toner cartridge having a movable projection for providing installation feedback to an image forming device

. . A toner cartridge according to one example embodiment includes a housing having a toner reservoir. An outlet port faces downward on a front of the housing near a first side of the housing. ... Lexmark International Inc

Magnetic keys having a plurality of magnetic plates

Magnetic keys having a plurality of magnetic plates are disclosed. The location and orientation of the magnetic plates are controlled to generate magnetic fields that are of sufficient strength to be reliably read and sufficient complexity to be difficult to counterfeit. ... Lexmark International Inc

Magnetic keys having a plurality of magnet layers with holes

Magnetic keys having a plurality of magnetic layers having holes are disclosed. The location and orientation of the holes are controlled to generate magnetic fields that are of sufficient strength to be reliably read and sufficient complexity to be difficult to counterfeit. ... Lexmark International Inc

Common media redrive system for both belt and hot roll fuser assemblies in an imaging device

A common media redrive system for use with either a hot roll fuser assembly and a belt roll fuser assembly installed an imaging device. The redrive systems includes an access door movable between a raised closed and a lowered open position. ... Lexmark International Inc

Toner cartridge for use in an image forming device

A toner cartridge according to one example embodiment includes a housing having a reservoir for containing toner therein. An exit port in fluid communication with the reservoir faces downward on a front of the housing near a first side of the housing. ... Lexmark International Inc

Dynamic address change optimizations

Component circuitry for a replaceable printer component, including an address generator which selectively generates component addresses, wherein following an event, the component circuitry performs in succession a plurality of sets of operations, each set of operations including receiving an address change request from a master and changing the component address in response, a last one of the changed component addresses being available as the component address for the component circuitry in one or more subsequent communications with the master.. . ... Lexmark International Inc

Lubricant metering for photoconductor in imaging device

An imaging device has a photoconductive drum with a surface that is selectively discharged to create a latent electrostatic image for attracting toner for transfer to a media moving in a process direction. The image is divided into multiple segments along the process direction and discharged pixels per segment are counted. ... Lexmark International Inc

Fuser architecture for enabling interchangeability in an imaging device

An imaging device having a fuser and print engine architecture that enables complete interchangeability between fuser types with a common print engine. The imaging device has a frame configured to separately receive a first fuser assembly of a first fuser type and a second fuser assembly of a second fuser type different from the first fuser type. ... Lexmark International Inc

Toner level sensing for a replaceable unit of an image forming device

A method for estimating an amount of toner remaining in a reservoir of a replaceable unit for an image forming device according to one example embodiment includes receiving by processing circuitry pulses from a magnetic sensor. Each pulse is indicative that the magnetic sensor detected a magnet on a moving paddle positioned in the reservoir. ... Lexmark International Inc

Toner formulation having a silane surface treated on its outer surface and method of preparing the same

A method for producing core shell toner for electrophotography according to one embodiment, includes surface treating the outer surface of a core shell toner particle with a alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons using a hydrolytic deposition process after the core shell toner particle is fully formed. This method results in the bonding of the alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons to the outer surface of the core shell toner particle. ... Lexmark International Inc

05/24/18 / #20180143554

Toner formulation having a silane surface treated on its outer surface and method of preparing the same

A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core that includes a second polymer binder; and a borax coupling agent between the core and the shell and an alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons that are bonded to the outer surface of the shell using a hydrolytic deposition process. This successful alkoxysilane hydrocarbon surface treatment on the outer surface of the toner particle results in attaining a desirable charge stability in hot and humid environments and ultimately improving the quality of the toner, especially by reducing toner dusting, toner fuming and ultra-fine particles generation. ... Lexmark International Inc

05/17/18 / #20180136584

Electrophotographic image forming device having a replaceable unit that includes an engagement member for positioning a magnetic sensor

An electrophotographic image forming device includes a replaceable unit having a housing that includes a top, a bottom, a front, and a rear positioned between a first side and a second side of the housing. The housing has a reservoir for storing toner. ... Lexmark International Inc

03/22/18 / #20180081308

System and method for controlling a fuser assembly of an electrophotographic imaging device

An apparatus includes a fuser assembly including a heater member. The heater member includes at least one heating element and at least one temperature sensor to sense a temperature of the heating element. ... Lexmark International Inc

03/22/18 / #20180081291

Toner formulation including a softening agent and method of preparing the same

A method for producing core shell toner particles wherein the toner core includes a unique softening agent consisting of a core shell styrene acrylic latex having an encapsulated ipn microgel. A first polymer emulsion is combined and agglomerated with a pigment dispersion and a wax emulsion and the above described styrene acrylic latex having an encapsulated ipn microgel to form toner cores. ... Lexmark International Inc

03/22/18 / #20180081290

Toner formulation including a softening agent and method of preparing the same

A chemically prepared core shell toner formulation for use in electrophotography having an inventive softening agent consisting of a core shell latex having an encapsulated interpenetrating polymer network microgel in the core of the toner is disclosed. Having this core shell latex with an encapsulated ipn microgel in the core of the toner results in a toner that can simultaneously fuse at a desirable low temperature and survive the temperature extremes associated with shipping and storage.. ... Lexmark International Inc

03/15/18 / #20180074442

System and method for controlling a fuser assembly of an electrophotographic imaging device

An apparatus includes a fuser assembly including a heater member. The heater member includes at least one heating element and at least one temperature sensor to sense a temperature of the heating element. ... Lexmark International Inc

03/08/18 / #20180067419

Capacitive toner level sensor

A toner container according to one example embodiment includes a housing having a reservoir for holding toner. A rotatable shaft is positioned in the reservoir and has a rotational axis. ... Lexmark International Inc

03/01/18 / #20180059613

Image forming device having a replaceable unit that includes magnets of varying angular offset for toner level sensing

An electrophotographic image forming device according to one example embodiment includes a replaceable unit including a housing having a reservoir for storing toner. A rotatable shaft is positioned within the reservoir and has an axis of rotation. ... Lexmark International Inc

03/01/18 / #20180059591

System and method for controlling a fuser assembly of an electrophotographic imaging device

An apparatus includes a fuser assembly including a heat transfer member. The heat transfer member includes a substrate, first and second resistive traces disposed on the substrate, and a temperature sensor disposed on the substrate for sensing an end portion thereof. ... Lexmark International Inc

02/15/18 / #20180046135

Drive coupler

A replaceable unit for an image forming device according to one example embodiment includes a housing having a reservoir for storing toner. The replaceable unit includes a rotatable drive coupler and a rotatable shaft that has a cross pin on an axial end of the shaft, generally orthogonal to the shaft. ... Lexmark International Inc

02/08/18 / #20180039203

Toner cartridge for image forming device including flight with magnetic particles to generate a magnetic field

A toner cartridge for an image forming device includes a body for holding toner and a flight. The flight contains magnetic particles and is configured to guide movement of a magnetic field sensor. ... Lexmark International Inc

02/01/18 / #20180032027

Redundant electrical contact between a fastener and a component

An assembly according to one example embodiment includes an electrically conductive fastener that includes a head and a shank. The shank extends from an undersurface of the head along a longitudinal axis of the fastener to a distal end of the fastener. ... Lexmark International Inc

02/01/18 / #20180032026

Door sequencing device for an imaging device

An imaging device having a door closing sequencing device to ensure a proper closing sequence of two mating doors. The sequencing device includes a door stop, a link, and a hinge. ... Lexmark International Inc

02/01/18 / #20180032007

System and method for controlling a fuser assembly of an electrophotographic imaging device

An apparatus includes a fuser assembly including a heat transfer member. The heat transfer member includes a substrate, first and second resistive traces disposed on the substrate, and a temperature sensor disposed on the substrate for sensing an end portion thereof. ... Lexmark International Inc

01/25/18 / #20180024493

Image forming device having a replaceable unit that includes a latching mechanism

An electrophotographic image forming device includes a replaceable unit having a body with a toner reservoir. A drive element on a rear end of the body is unobstructed to mesh with a corresponding drive element in the image forming device. ... Lexmark International Inc

01/25/18 / #20180024487

Systems and methods for controlling toner development in an image forming device

A method of controlling toner development during a life of an imaging unit in an image forming device by determining whether an end of life of the imaging unit has been reached and upon a positive determination, performing at least one of incrementally lowering a target toner mass to be measured by a toner patch sensor and incrementally reducing the magnitude of voltage biases applied to at least one of the magnetic roll and the charging roll of the imaging forming device. Performing the acts of incrementally lowering and reducing are repeated until the imaging unit is replaced. ... Lexmark International Inc

01/25/18 / #20180024464

Image forming device having a replaceable toner cartridge that includes an engagement member for actuating a shutter

An image forming device includes a toner cartridge having an outlet port positioned on the front of a housing for transferring toner from a reservoir to a developer unit. The toner cartridge includes an engagement member having a first engagement surface and a second engagement surface. ... Lexmark International Inc

01/11/18 / #20180009733

Two step method of producing triarlyamine compounds having two alkyl alcohols in a single reaction vessel

The present invention provides a simple, cost effective and time saving two step method for synthesizing triarylamines comprising two alkyl alcohols in a single vessel. The resulting triarylamines are synthesized without the need for the usual protection and the deprotection steps. ... Lexmark International Inc

12/14/17 / #20170357170

Toner formulation and method of preparing the same

A chemically prepared toner composition made up of a toner particle with a core having a first polymer binder, a monomer free radical polymerization formed core shell styrene acrylic latex having a liquid gel core, a pigment, a wax, and a shell formed around the core including a second polymer binder and method to make the same is disclosed. An optional borax coupling agent can be placed between the outer surface of the core and the shell to assist in the binding of the polymer found in the shell onto the surface of the toner core containing the first polymer.. ... Lexmark International Inc

12/14/17 / #20170357169

Toner formulation and method of preparing the same

A chemically prepared toner composition made up of a toner particle with a core having a first polymer binder, a monomer free radical polymerization formed core shell styrene acrylic latex having a liquid gel core, a pigment, a wax, and a shell formed around the core including a second polymer binder and method to make the same is disclosed. An optional borax coupling agent can be placed between the outer surface of the core and the shell to assist in the binding of the polymer found in the shell onto the surface of the toner core containing the first polymer.. ... Lexmark International Inc

12/07/17 / #20170351205

Method and system for controlling a fuser of an electrophotographic imaging device

A system and methods for controlling the fuser heater of an electrophotographic imaging device, including initiating a preheating operation for preheating the fuser heater. Following a temperature of the fuser heater reaching a first predetermined temperature during the preheating operation, heater power is calculated based on a current temperature of the fuser heater and upon a second predetermined temperature. ... Lexmark International Inc

12/07/17 / #20170351204

Method and system for controlling a fuser of an electrophotographic imaging device

A system and methods for controlling the fuser heater of an electrophotographic imaging device, including initiating a preheating operation for preheating the fuser heater. Following a temperature of the fuser heater reaching a first predetermined temperature during the preheating operation, heater power is calculated based on a current temperature of the fuser heater and upon a second predetermined temperature. ... Lexmark International Inc

12/07/17 / #20170351203

Method and system for controlling a fuser of an electrophotographic imaging device

A system and methods for controlling the fuser heater of an electrophotographic imaging device, including initiating a preheating operation for preheating the fuser heater. Following a temperature of the fuser heater reaching a first predetermined temperature during the preheating operation, heater power is calculated based on a current temperature of the fuser heater and upon a second predetermined temperature. ... Lexmark International Inc

11/30/17 / #20170343954

Biased lubricant applicator brush in imaging device

In an imaging device having a photoconductive drum and a lubricant applicator brush, methods and apparatus teach application of the lubricant to the drum at a transfer nip and removing undeveloped toner particles. A first voltage is applied to the drum while the brush receives a voltage that switches more positive and more negative than the first voltage. ... Lexmark International Inc

11/30/17 / #20170343951

Axially shifting photoconductive drum

A photoconductor unit for an electrophotographic image forming device according to one example embodiment includes a housing and a photoconductive drum rotatably mounted on the housing. An engagement member is positioned to receive an actuation force from an actuator of the image forming device. ... Lexmark International Inc

11/30/17 / #20170343950

Axially shifting a photoconductive drum using a cam

A photoconductor unit for an electrophotographic image forming device according to one example embodiment includes a housing and a photoconductive drum rotatably mounted on the housing. A cam is mounted on the housing and has a cam surface that is positioned to contact a corresponding locating surface. ... Lexmark International Inc

11/30/17 / #20170343932

Systems and methods for fuser power control

A method of controlling the temperature of a fuser is disclosed. The fuser is driven with a repeated sequence of half-cycles of an ac line voltage. ... Lexmark International Inc

11/16/17 / #20170329999

Rfid tag programming in a duplexer

A method of programming an rfid tag in an image-forming device is disclosed. The rfid tag is programmed while media is paused in a duplex media path. ... Lexmark International Inc

11/09/17 / #20170323232

System and methods for reporting and managing incidents using electronic devices

A method of managing a report for an incident via a remote server that includes receiving an indication of an occurrence of an incident from a first electronic device; receiving information for the generation of an incident report from at least two electronic devices; storing the information in a storage location associated with the incident; determining if the stored information includes all information required to generate a complete incident report; upon a negative determination, transmitting an indication of the stored information and of information needed required to generate the complete incident report to at least one electronic device of the plurality electronic devices; and upon a positive determination, changing the state of the storage location associated with the incident and generating the incident report from the stored information associated with the incident.. . ... Lexmark International Inc

11/09/17 / #20170322511

Door-actuated feed roll separator mechanism for an imaging device

An imaging device having a door-actuated feed roll separator mechanism. A pair of opposed panels of a frame of the imaging device are positioned parallel to a media path. ... Lexmark International Inc

11/09/17 / #20170320701

Removable duplexer tray module for an imaging apparatus

A removable media handling module includes a body that is horizontally slidable into and removable from an imaging apparatus. The media handling module includes a lower media guide extending between a front and a rear of the body in a direction of insertion of the body into the imaging apparatus. ... Lexmark International Inc

11/09/17 / #20170320700

Removable duplexer tray module for an imaging apparatus

A removable media handling module includes a body that is horizontally slidable into and removable from an imaging apparatus. The media handling module includes a lower media guide extending between a front and a rear of the body. ... Lexmark International Inc

10/26/17 / #20170308033

Replaceable unit for an image forming device having a retainer assembly having positioning features for processing circuitry

A replaceable unit for an electrophotographic image forming device includes an electrical contact positioned within a pocket on a first side of a housing of the replaceable unit. The pocket has an opening facing a front of the housing to permit an electrical connector of the image forming device to enter the pocket and mate with the electrical contact. ... Lexmark International Inc

10/26/17 / #20170308032

Image forming device having a supply item that includes a retainer assembly having positioning features for processing circuitry

An electrophotographic image forming device includes a replaceable unit that has a reservoir for holding toner. A circuit board is mounted within a pocket on a first side of a housing of the replaceable unit. ... Lexmark International Inc

10/26/17 / #20170308028

Two door interlock mechanism for an imaging device

An imaging device with a two door interlock system for detecting a positional state of orthogonally mounted first and second access doors of the imaging device. The two door interlock system includes a mounting assembly rotatably mounted to a frame of the imaging device and movable by the first access door between a first position and a second position, and an actuator projecting from an inner surface of the second access door, and a sensor positioned on the mounting assembly and providing an output signal that changes between a first state and a second state. ... Lexmark International Inc

10/26/17 / #20170308006

Developer roll having magnetic zones of varying axial length for a dual component development electrophotographic image forming device

A developer roll according to one example embodiment includes a core including at least one permanent magnet forming a magnetized portion of the core. A cylindrical sleeve positioned around the core is rotatable relative to the core about an axis of rotation in an operative rotational direction. ... Lexmark International Inc

10/05/17 / #20170289263

System and methods for facilitating communication among a subset of connections that connect to a web application

A method for facilitating communication among web connections connecting to a web application is disclosed. The method includes receiving an indication that a web connection to a web application is established, determining if the web connection is a potential host or a potential client connection. ... Lexmark International Inc

10/05/17 / #20170285517

Image forming device having a supply item that includes a retainer assembly having positioning features for processing circuitry

An electrophotographic image forming device includes a replaceable unit that has a housing having an internal reservoir for storing toner. A circuit board retainer is positioned on an exterior surface of the housing. ... Lexmark International Inc

09/28/17 / #20170277088

Endless fuser belt with heat pipe and two heating elements

A fuser assembly comprising an endless fuser belt having positioned internally within a first metal roll having a heat pipe, a second metal roll having a first heating element, and a second heating element disposed between the first and the second metal rolls. The endless fuser belt is disposed proximate to a backup roll for forming a fusing nip therewith, wherein a rotation of the backup roll moves the fuser belt and rotates the first and the second metal rolls. ... Lexmark International Inc

09/28/17 / #20170277075

Electrophotographic image forming device having a toner cartridge that includes a movable projection for providing installation feedback

An electrographic image forming device according to one example embodiment includes toner cartridge having a housing that includes a toner reservoir. An outlet port faces downward on a front of the housing near a first side of the housing. ... Lexmark International Inc

09/21/17 / #20170267470

Removable media tray having a high latching force and a low opening force

A removable media tray assembly for an image forming device according to one embodiment includes a media tray having a bottom surface and a front wall extending upward from the bottom surface. A bottom surface defines a media storage location for storing a stack of media sheets. ... Lexmark International Inc

08/31/17 / #20170247210

Removable media tray having a high latching force and a low opening force

A removable media tray assembly for an image forming device according to one embodiment includes a media tray having a bottom surface and a front wall extending upward from the bottom surface. A bottom surface defines a media storage location for storing a stack of media sheets. ... Lexmark International Inc

08/17/17 / #20170235244

Toner formulation using crystalline polyester encapsulated with a styrene acrylate latex and method of preparing the same

The present disclosure relates to a chemically prepared toner composition including a toner particle having a core including a first polymer binder, an styrene acrylate encapsulated crystalline polyester latex, a pigment, and a shell formed around the core including a second polymer binder and method to make the same. The disclosed method of preparing the toner results in a change in the distribution of the components of the toner particle wherein the lower molecular weight resins, the pigment and the wax are located away from the surface of the toner particle and the pigment is clinging to the edge of the wax domain.. ... Lexmark International Inc

08/03/17 / #20170220679

Hierarchical dictionary with statistical filtering based on word frequency

A hierarchical dictionary having methods of storing words based on frequency thereof in one or more documents which includes the steps of identifying a hash value corresponding to an inputted word; storing the word in a first hash map and in a second hash map having a substantially larger word storage capacity than the first hash map based on the identified hash value; clearing the first hash map at every predetermined period or triggering event; determining whether a frequency of the word as stored in the second hash map exceeds a predetermined value; and if so, promoting the word from the second hash map to a third hash map having a substantially larger word storage capacity than the second hash map for long-term storage and later retrieval.. . ... Lexmark International Inc

08/03/17 / #20170219961

Toner cartridge for use in an image forming device

An electrophotographic image forming device according to one example embodiment includes a toner cartridge having a housing that defines a reservoir for containing toner. An exit port in fluid communication with the reservoir faces downward on the front of the housing near a first side. ... Lexmark International Inc

07/27/17 / #20170212439

Toner formulations having improved toner usage efficiency

A toner composition and a method of making a toner composition wherein toner particles having an average size range of 1-25 μm may be mixed with an extra particulate additives including large silica particles having a primary particle size in the range of 60 nm to 120 nm, medium fumed silica particles having a primary particle size in the range of 30 nm to 60 nm, antimony oxide doped tin oxide (sb2o5 doped sno2) coated titania conductive additive and acicular titania oxide. Optionally small silica having a primary particle size in the range of 2 nm to 20 nm may be mixed with the medium silica, large silica, titania conductive additive and the acicular titania oxide. ... Lexmark International Inc

07/27/17 / #20170212438

Toner formulations having improved toner usage efficiency

A toner composition and a method of making a toner composition wherein toner particles having an average size range of 1-25 μm may be mixed with an extra particulate additives including large silica particles having a primary particle size in the range of 60 nm to 120 nm, medium fumed silica particles having a primary particle size in the range of 30 nm to 60 nm, antimony oxide doped tin oxide (sb2o5 doped sno2) coated titania conductive additive and acicular titania oxide. Optionally small silica having a primary particle size in the range of 2 nm to 20 nm may be mixed with the medium silica, large silica, titania conductive additive and the acicular titania oxide. ... Lexmark International Inc

07/20/17 / #20170205762

Positioning features for electrical contacts of a replaceable unit of an electrophotographic image forming device

A replaceable imaging basket for an electrophotographic image forming device according to one embodiment includes a frame having a positioning slot that is open at a top of the frame for receiving a replaceable unit. An electrical connector is positioned on an inner side of the frame adjacent to the positioning slot. ... Lexmark International Inc

07/20/17 / #20170205760

Photoconductor lubricant assembly

A photoconductor unit for an electrophotographic image forming device according to one example embodiment includes a housing and a photoconductive drum rotatably mounted on the housing. The photoconductive drum has an outer surface. ... Lexmark International Inc

07/20/17 / #20170205752

Positioning features for electrical contacts of a replaceable unit of an electrophotographic image forming device

A replaceable unit for an electrophotographic image forming device according to one embodiment includes a pocket formed on a first side of a housing. A bottom end of the pocket is open for receiving an electrical connector during insertion of the replaceable unit into the image forming device. ... Lexmark International Inc

07/20/17 / #20170205740

Systems and methods for fuser power control

A method of controlling the temperature of a fuser is disclosed. The fuser is driven with a repeated sequence of half-cycles of an ac line voltage. ... Lexmark International Inc

07/06/17 / #20170195521

Laser scanning unit adjusting output power of modulated beam using shading information to reduce scan line energy variation

. . A laser scanning unit for an image forming device includes a light source for emitting a laser beam, a scanning member having at least one reflective surface for scanning the laser beam onto an imaging surface across a plurality of scan lines, and driver circuitry for driving the light source to emit the laser beam. The driver circuitry has a first input for receiving a first signal indicating image information and a second input for receiving a second signal indicating shading information. ... Lexmark International Inc

07/06/17 / #20170192379

Power management and control for a fuser of an electrophotographic imaging device

A system and method for controlling the fuser assembly of an electrophotographic imaging device, including determining a resistance of the fuser heater at a predetermined temperature that is less than a fusing temperature for performing a fusing operation; calculating a set point heater resistance based on the determined heater resistance, the set point heater resistance being a resistance of the fuser heater at a predetermined set point temperature; reading a line voltage to the electrophotographic imaging device at a first time; calculating heater power based on the line voltage reading and the calculated set point heater resistance; and controlling a speed of a fusing operation based on the calculated heater power.. . ... Lexmark International Inc

07/06/17 / #20170192373

Image forming device with laser scanner unit and memory therefor

An image forming device includes a controller and a laser scanning unit. The laser scanning unit includes a light source for generating a laser beam for discharging a photoconductive member to create an electrostatic latent image. ... Lexmark International Inc

06/29/17 / #20170185028

Cleaner blade sealing in an electrophotographic image forming device

A cleaner assembly according to one embodiment includes a cleaner blade that extends upward in a cantilevered manner and that includes a cleaning edge for contacting a surface to remove toner from the surface. A waste toner sump is positioned adjacent to a rear side of the cleaner blade for storing toner removed from the surface by the cleaner blade. ... Lexmark International Inc

06/29/17 / #20170184987

Photoconductor overcoat having crosslinkable hole transport molecules having four radical polymerizble groups and method to make the same

An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device and method to make the same is provided. The overcoat layer is prepared from a curable composition including a crosslinkable hole transport molecule containing four radical polymerizable functional groups in combination with a crosslinkable acrylate having at least 6 functional groups. ... Lexmark International Inc

06/29/17 / #20170184986

Photoconductor overcoat having crosslinkable hole transport molecules having four radical polymerizble groups and method to make the same

An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device and method to make the same is provided. The overcoat layer is prepared from a curable composition including a crosslinkable hole transport molecule containing four radical polymerizable functional groups in combination with a crosslinkable acrylate having at least 6 functional groups. ... Lexmark International Inc

06/29/17 / #20170184984

Photoconductor having crosslinkable transport molecules having four radical polymerizable groups and method to make the same

An improved organic photoconductor drum having a protective overcoat layer and method to make the same is provided. The protective overcoat layer is prepared from a curable composition including a crosslinkable hole transport molecule containing four radical polymerizable functional groups in combination with a crosslinkable acrylate having at least 6 functional groups.. An improved organic photoconductor drum having a protective overcoat layer and method to make the same is provided. The protective overcoat layer is prepared from a curable composition including a crosslinkable hole transport molecule containing four radical polymerizable functional groups in combination with a crosslinkable acrylate having at least 6 functional groups.. ... Lexmark International Inc

06/22/17 / #20170180575

Method of using a fiducial in determining two media types of different lengths used on a flatbed scanner

. . A method for determining a media size of a target scanned on the platen of the flatbed scanner using a fiducial placed on a backer of the flatbed scanner at a predetermined location. The fiducial is comprised of a plurality of objects, either placed in a predetermined pattern or randomly within a fiducial frame. ... Lexmark International Inc

06/22/17 / #20170180574

Fiducial for use in determining two media types of different lengths used on a flatbed scanner

A fiducial on a backer of a flatbed scanner is used for determining a media size of a target scanned on the platen of the scanner. The fiducial is comprised of a plurality of symbols, either arranged in a predetermined pattern or randomly within a fiducial frame, and is placed at a predetermined location on the backer on the scanner lid. ... Lexmark International Inc

06/22/17 / #20170176926

Cleaner assembly for removing waste toner in an electrophotographic image forming device

A cleaner assembly for an electrophotographic image forming device according to one example embodiment includes a cleaner blade having a pair of longitudinal ends and a cleaning edge that extends between the pair of longitudinal ends for contacting a surface of a photoconductive drum to remove toner from the surface of the photoconductive drum. An end seal is positioned at one of the pair of longitudinal ends of the cleaner blade. ... Lexmark International Inc

06/22/17 / #20170176921

Cleaner assembly for removing waste toner in an electrophotographic image forming device

A cleaner assembly for an electrophotographic image forming device according to one example embodiment includes a cleaner blade having a pair of longitudinal ends and a cleaning edge that extends between the pair of longitudinal ends for contacting a surface to remove toner from the surface. A strip is attached to the cleaner blade at one of the pair of longitudinal ends of the cleaner blade. ... Lexmark International Inc

06/22/17 / #20170176889

Toner cartridge having an expandable toner agitator

A toner cartridge for an electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for storing toner. A rotatable drive shaft is positioned within the reservoir. ... Lexmark International Inc

06/22/17 / #20170176887

Toner cartridge having an axially movable member in a toner reservoir thereof

A toner cartridge for an electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for storing toner. A rotatable shaft is positioned within the reservoir and has a threaded portion. ... Lexmark International Inc

06/15/17 / #20170168447

Replaceable unit for an electrophotographic image forming device having a retractable electrical connector

A replaceable unit for an electrophotographic image forming device according to one example includes a housing having a toner reservoir. An electrical connector mounted on the housing is movable between a retracted position and an operative position. ... Lexmark International Inc

06/15/17 / #20170168423

Toner port shutter for a toner container of an electrophotographic image forming device

A toner container includes a housing having a reservoir for holding toner. An inlet port is formed on the housing and in fluid communication with the reservoir for receiving toner. ... Lexmark International Inc

06/08/17 / #20170163641

Systems and methods for authentication of printer supply items

Methods for authenticating printer supply items using revocation lists are disclosed. Revocation lists are updated using dnssec to communicate between a printer and a dns name server. ... Lexmark International Inc

06/08/17 / #20170163640

Systems and methods for authentication of printer supply items

Systems and methods for authenticating printer supply items using revocation lists are disclosed. Revocation lists are updated using dnssec to communicate between a printer and a dns name server. ... Lexmark International Inc

06/08/17 / #20170161248

System and methods for benefit eligibility verification

A method for determining by a server whether an owner of a document is eligible for one or more receivables that includes selecting, based on a regulation associated with the document, one or more fields of an electronic copy of the document; generating a form displaying the selected one or more fields; sending, based on the regulation, a notice of availability of the form to a mobile device; receiving, from the mobile device, updated one or more fields via the form; determining, based on the updated one or more fields and the regulation, whether the owner of the document is eligible for the one or more receivables; and upon a positive determination, sending a notice of eligibility to the owner via the mobile device.. . ... Lexmark International Inc

06/08/17 / #20170158451

Media accumulator-ejector for use with an imaging device

A media accumulator-ejector for use with an imaging apparatus. Rotatable upper and lower roll assemblies are located above and below a media accumulation zone comprised of an accumulation plate and positioned to receive media exiting an imaging device. ... Lexmark International Inc

06/01/17 / #20170154435

System and methods of segmenting vessels from medical imaging data

A method for segmenting a vessel from an image data that includes accessing the image data from which the vessel is segmented through a user display interface. A first seed point is then received from a user, the first seed point placed by the user on a first location on the image data. ... Lexmark International Inc

05/11/17 / #20170132397

System and methods for transmitting clinical data having multi-segment fields from one or more modalities to a dictation machine

A method of retrieving data from a health level 7 (hl7) clinical data from one or more modalities for transferring to a dictation system is disclosed. The method includes receiving hl7 clinical data having one or more multi-segment fields from a modality that generates the hl7 clinical data; accessing a formatting template for use in normalizing the parsed hl7 clinical data, the formatting template including a retrieval setting that specifies a type of the one or more multi-segment fields from which to retrieve the one or more values; retrieving the values from the fields of the one or more multi-segment fields based on the retrieval setting as specified in the formatting template; normalizing the retrieved values using format settings set in the formatting template; and sending the normalized values to the dictation system for use in generating a report by the dictation system.. ... Lexmark International Inc

05/11/17 / #20170132375

System and methods for transmitting clinical data from one or more sending applications to a dictation system

A system and method of transferring data generated at a data source to a dictation system for use by the dictation system to generate reports are disclosed. One example method includes parsing the data to retrieve values from the data that match a field in a formatting template. ... Lexmark International Inc

05/11/17 / #20170132321

System and methods for transmitting clinical data from one or more sending applications to a dictation system

A system and methods for transferring data generated at one or more data sources to a dictation system are disclosed. In one example embodiment of the method, clinical data may be received from a sending application associated with the one or more data sources. ... Lexmark International Inc

05/11/17 / #20170132320

System and methods for transmitting health level 7 data from one or more sending applications to a dictation system

A method of transferring data generated at one or more data sources to a dictation system for use by the dictation system includes receiving health level 7 (hl7) data from a sending application associated with at least one data source that generates hl7 data; parsing the hl7 data received from the sending application to retrieve one or more values from the hl7 data that match a corresponding field in a formatting template; normalizing the retrieved one or more values that match the one or more fields in the formatting template by formatting the one or more values based on one or more format settings configured in the formatting template; and sending the one or more normalized values to the dictation system for processing by the dictation system.. . ... Lexmark International Inc

05/11/17 / #20170131653

Toner formulation using crystalline polyester encapsulated with a styrene acrylate latex formulation and method of preparing the same

The present disclosure relates to a chemically prepared toner composition including a toner particle having a core including a first polymer binder, an styrene acrylic encapsulated crystalline polyester latex, a pigment, a wax, and a shell formed around the core including a second polymer binder and method to make the same. The disclosed method of preparing the toner results in a change in the distribution of the components of the toner particle wherein the lower molecular weight resins, the pigment, and the wax are located away from the surface of the toner particle.. ... Lexmark International Inc

05/11/17 / #20170131652

Toner formulation using wax encapsulated with a styrene acrylate latex and method of preparing the same

The present disclosure relates to a chemically prepared toner composition including a toner particle having a core including a first polymer binder, an styrene acrylate encapsulated wax latex, a pigment, and a shell formed around the core including a second polymer binder and method to make the same. The disclosed method of preparing the toner results in a change in the distribution of the components of the toner particle wherein the lower molecular weight resins, the pigment, and the wax are located away from the surface of the toner particle and the pigment is clinging to the edge of the wax domain.. ... Lexmark International Inc

05/11/17 / #20170131651

Toner formulation using crystalline polyester encapsulated with a styrene acrylate latex formulation and method of preparing the same

The present disclosure relates to a chemically prepared toner composition including a toner particle having a core including a first polymer binder, an styrene acrylic encapsulated crystalline polyester latex, a pigment, a wax, and a shell formed around the core including a second polymer binder and method to make the same. The disclosed method of preparing the toner results in a change in the distribution of the components of the toner particle wherein the lower molecular weight resins, the pigment, and the wax are located away from the surface of the toner particle.. ... Lexmark International Inc

05/11/17 / #20170131650

Toner formulation using wax encapsulated with a styrene acrylate latex formulation and method of preparing the same

The present disclosure relates to a chemically prepared toner composition including a toner particle having a core including a first polymer binder, an styrene acrylate encapsulated wax latex, a pigment, and a shell formed around the core including a second polymer binder and method to make the same. The disclosed method of preparing the toner results in a change in the distribution of the components of the toner particle wherein the lower molecular weight resins, the pigment, and the wax are located away from the surface of the toner particle and the pigment is clinging to the edge of the wax domain.. ... Lexmark International Inc

05/04/17 / #20170124611

Methods for monitoring and valuating transactions for document processes

A method of charging a customer for using a software program product that processes one or more documents that includes receiving, by a tracking server from at least one client application, information relating to a processing of a document using the software program product; determining if the information indicates a successful processing of the document; and upon positive determination, charging the customer with an amount for the successful processing of the document using the software program product.. . ... Lexmark International Inc

05/04/17 / #20170123348

Replaceable unit for an electrophotographic image forming device having an engagement member for positioning a magnetic sensor

A toner cartridge according to one embodiment includes a housing having a toner reservoir. An outlet port in fluid communication with the reservoir is positioned on a front of the housing near a first side of the housing. ... Lexmark International Inc

04/27/17 / #20170115613

Bi-directional spring brake for a photoductive drum

A photoconductive drum assembly according to one embodiment includes a photoconductive drum rotatable about a rotational axis in first and second rotational directions. A spring brake has a coiled portion wrapped around a portion of the photoconductive drum at its axial end and around the rotational axis of the photoconductive drum. ... Lexmark International Inc

04/27/17 / #20170113392

Continuous extrusion method for manufacturing a z-directed component for insertion into a mounting hole in a printed circuit board

A method for manufacturing a z-directed component for insertion into a mounting hole in a printed circuit board according to one example embodiment includes simultaneously extruding a plurality of materials according to the structure of the z-directed component to form an extruded object and forming the z-directed component from the extruded object. In one embodiment, the extruded object is divided into individual z-directed components. ... Lexmark International Inc

04/13/17 / #20170104601

Elongated physical unclonable function

An elongate physical unclonable function (puf) is disclosed. The puf has a longitudinal axis and contains a plurality of small magnetic particles. ... Lexmark International Inc

04/13/17 / #20170104600

Physical unclonable function imaged through two faces

A physical unclonable function (puf) imaged through two faces is disclosed. The puf is difficult to counterfeit because the view through both faces must be duplicated for a successful counterfeit. ... Lexmark International Inc

04/13/17 / #20170104486

Toothed-rack physical unclonable function

A physical unclonable function (puf) located on a supply item for an imaging device is disclosed. The puf has a toothed rack configured to mate with a gear. ... Lexmark International Inc

04/13/17 / #20170103834

Methods of making physical unclonable functions having magnetic and non-magnetic particles

A method of making a physical unclonable function (puf) having magnetic and non-magnetic particles is disclosed. Measuring both magnetic field and image view makes the puf difficult to counterfeit. ... Lexmark International Inc

04/13/17 / #20170103791

Rotating magnetic measurements of physical unclonable functions

A rotating magnetic physical unclonable function (puf) is disclosed. Rotating the puf enables robust low cost puf readers. ... Lexmark International Inc

04/13/17 / #20170102670

Integrated handle and latch for a replaceable unit of an electrophotographic image forming device

A replaceable unit for an electrophotographic image forming device according to another example embodiment includes a frame and a handle exposed on a top portion of the frame to allow a user to carry the replaceable unit by holding the handle. The handle is movable between a raised position and a lowered position. ... Lexmark International Inc

04/13/17 / #20170102668

Physical unclonable function of a supply item

A physical unclonable function (puf) located on a supply item for an imaging device is disclosed. The puf is advantageously located on the back side of the supply item opposite a handle. ... Lexmark International Inc

04/13/17 / #20170100862

Injection-molded physical unclonable function

A physical unclonable function formed by an injection molding machine is disclosed. A highly random distribution of magnetic particles is created by magnetizing magnetizable particles before feeding the particles into the injection molding machine due to turbulence within the injection molding machine. ... Lexmark International Inc

04/06/17 / #20170097931

Notification methods for non-programmatic integration systems

Methods and systems for retrieving information from an unrelated application that includes receiving automatically, non-programmatically collected application data from a mapped location of a mapped source reference of the unrelated application; querying a computer-readable storage medium collected application data without user intervention; retrieving identifying data associated with documents stored in the computer-readable storage medium based upon the query; monitoring the collected application data from the mapped location for a change in the collected application data; and upon detecting the change, re-querying the computer-readable storage medium using the changed collected application data and retrieving identifying data associated with the documents based upon the re-query.. . ... Lexmark International Inc

03/30/17 / #20170090357

Drive mechanism for an intermediate transfer member module of an electrophotograhic imaging device

An intermediate transfer member (itm) module including a frame; a backup roll and a drive roll rotatably disposed along a first end portion of the frame. A tension roll is rotatably disposed along a second end portion of the frame. ... Lexmark International Inc

03/30/17 / #20170090190

Collimation assembly for an imaging 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. ... Lexmark International Inc

03/30/17 / #20170090189

Collimation assembly for an imaging 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. ... Lexmark International Inc

03/30/17 / #20170090188

Collimation assembly for an imaging 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. ... Lexmark International Inc

03/23/17 / #20170085668

System and methods of managing content in one or more networked repositories during a network downtime condition

A non-transitory readable storage medium storing one or more instructions that, when executed by the computer, cause the computer to perform a method of managing content and associated metadata in a network by a cache repository. The method comprises receiving content and associated data from a content source located in a local network of an edge facility; storing the content in the cache repository located in the local network of the edge facility; sending the content to an active repository remote from the local network of the edge facility for storage; and determining if a connection to the remote repository can be established in the network. ... Lexmark International Inc

03/23/17 / #20170082952

Surface modified magnetic carriers using hydrophobized titania

A method for providing a developer mix having tribocharge uniformity across varying temperature and humidity conditions is provided. Tribocharge uniformity is achieved in the developer mix by performing the step of treating the surface of the polymer coated magnetic carrier particles with hydrophobized titania surface additives before the polymer coated magnetic carrier particles are mixed with the toner particles. ... Lexmark International Inc

03/23/17 / #20170082949

Notched end seal for an electrophotographic image forming device

An end seal for an electrophotographic image forming device according to one example embodiment includes an elastomeric body having a blade seal portion for sealing against a rear surface of a doctor blade and a curved rotary seal portion that extends from a bottom end of the blade seal portion for sealing against an outer surface of a rotatable developer roll. The end seal includes a cutout in an inner axial side of the body positioned at a point where the rotary seal portion and the blade seal portion meet.. ... Lexmark International Inc

03/23/17 / #20170082937

Surface modified magnetic carriers using hydrophobized titania

A developer mix used in a dual component development (dcd) system is a mixture of toner particles and magnetic carrier particles, wherein the magnetic carrier particle is surface treated with a hydrophobized titania particle. The surface treatment with a hydrophobized titania particle may be selected from either a spherical, disk, or spindle shaped. ... Lexmark International Inc

03/16/17 / #20170075298

Replaceable unit for an electrophotographic image forming device having a latching mechanism

A replaceable unit for an electrophotographic image forming device includes a body having a toner reservoir. A drive element on a rear end of the body is unobstructed to mesh with a corresponding drive element in the image forming device. ... Lexmark International Inc

03/16/17 / #20170075295

Toner cartridge for use in an image forming device

A toner cartridge according to one example embodiment includes a housing defining a reservoir for containing toner. An exit port in fluid communication with the reservoir faces downward on a front of the housing near a first side of the housing. ... Lexmark International Inc

03/16/17 / #20170075294

Replaceable unit for an electrophotographic image forming device having positioning features for electrical contacts

A replaceable unit for an electrophotographic image forming device according to one example embodiment includes an electrical contact positioned on a first side of a housing of the replaceable unit for contacting an electrical contact in the image forming device. A guide on the first side of the housing is positioned closer to a front of the housing than the electrical contact and leads rearward toward the electrical contact. ... Lexmark International Inc

03/16/17 / #20170075286

Drive coupler for a rotatable component of an electrophotographic image forming device

A drive element for a rotatable component of an electrophotographic image forming device according to one example embodiment includes a body having a center hole for receiving a drive shaft therein. The center hole defines a rotational axis of the body. ... Lexmark International Inc

03/16/17 / #20170075257

Cam driven reciprocating toner agitator

A toner agitation system according to one example embodiment includes a toner agitator movable in a reciprocating manner. A cam follower is operatively connected to the toner agitator. ... Lexmark International Inc

03/16/17 / #20170075246

Method to achieve tribocharge uniformity of a developer mix across different temerature and humidity conditions by modifying the surface of the magnetic carrier particle

A method for providing a developer mix having tribocharge uniformity across varying temperature and humidity conditions is provided. A developer mix used in a dual component development (dcd) system typically is a mixture of toner particles and magnetic carrier particles. ... Lexmark International Inc

03/09/17 / #20170068179

Formulation for a developer mix having tribocharge uniformity across different temperature and humidity conditions

A developer mix formulation having tribocharge uniformity across varying temperature and humidity conditions is provided. A developer mix used in a dual component development (dcd) system is a mixture of toner particles and magnetic carrier particles. ... Lexmark International Inc

02/23/17 / #20170053163

Content delineation in document images

Methods and apparatus delineate grouped together content in documents. Void and unvoid pixels in document images get clustered together. ... Lexmark International Inc

02/23/17 / #20170052503

Systems for configuring settings of an electronic device for customization thereof

A system for customizing settings of an electronic device includes a replaceable component having an optical member for receiving optical energy. The optical member has an optical characteristic for modifying an amount of the optical energy that leaves the optical member relative to an amount of the optical energy received by the optical member. ... Lexmark International Inc

02/23/17 / #20170052478

Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing

A replaceable unit for an electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for storing toner. A rotatable shaft is positioned within the reservoir and has an axis of rotation. ... Lexmark International Inc

02/16/17 / #20170045843

Toner cartridge having a movable projection for providing installation feedback to an image forming device

A toner cartridge according to one example embodiment includes a housing having a toner reservoir. An outlet port faces downward on a front of the housing near a first side of the housing. ... Lexmark International Inc

02/02/17 / #20170032134

Method for reporting and addressing an unauthorized disclosure of classified information at an imaging device

A method of addressing an unauthorized disclosure of sensitive information at an imaging device, including receiving an indication of the unauthorized disclosure of sensitive information; receiving or generating preliminary information about the unauthorized disclosure; and transmitting the indication and the preliminary information to a remote location to initiate an investigation on the unauthorized disclosure. After receiving the indication, the method includes entering a reduced function mode by the imaging device; receiving a clearance key when in the reduced function mode; and after receiving the clearance key, exiting the reduced function mode and entering a normal mode of operation.. ... Lexmark International Inc

01/26/17 / #20170023910

Heater member for the fuser assembly of an electrophotographic imaging device

A fuser assembly, including a heat transfer member; a backup member disposed adjacent the heat transfer member so as to form a fuser nip; a frame in which the heat transfer member and the backup member are at least partly disposed; and a cover member pivotably coupled to the frame so as to pivot between a closed position and an open position, the cover member in the open position providing an opening for accessing and withdrawing a sheet of media disposed in the fuser assembly. A latch mechanism selectively latches the cover member to the frame and including a lever member disposed relative to an outer surface of the cover member such that movement of the lever member by a single hand of a user unlatches the cover member from the frame for moving the cover member to the open position.. ... Lexmark International Inc

01/26/17 / #20170023894

Heater member for the fuser assembly of an electrophotographic imaging device

A fusing apparatus includes a substrate having a first surface and a second surface, the second surface being opposite the first surface on the substrate, a first resistive trace and a second resistive trace, the first and second resistive traces being disposed adjacent each other along the first surface of the substrate in a length-wise direction thereof. A resistance of the first resistive trace is less than a resistance of the second resistive trace. ... Lexmark International Inc

01/26/17 / #20170023883

Device for connecting a centerless auger to a rotatable member

An auger assembly according to one example embodiment includes an auger having a helical flight extending along a longitudinal axis. The auger has a central opening running along the longitudinal axis. ... Lexmark International Inc

01/19/17 / #20170019543

Scan through display and methods of using same

An imaging device, including a panel having a privacy layer selectively configurable in a transparent state and an opaque state that blocks light from passing through the panel, and a display layer made of transparent material and positioned between the privacy layer and an outer surface of the panel, the display layer spaced from the privacy layer. A scanning device is disposed proximate to a surface of the privacy layer opposite the outer surface of the panel, for scanning an object positioned along the outer surface of the panel, wherein the controller operates the privacy layer in the transparent state and the display layer to not display image data in at least a first portion of panel such that the first portion thereof is transparent during the scanning operation for scanning the object.. ... Lexmark International Inc

01/19/17 / #20170017179

Toner level sensing for a replaceable unit of an image forming device

A method for estimating an amount of toner remaining in a reservoir of a replaceable unit for an image forming device according to one example embodiment includes receiving by processing circuitry pulses from a sensor. The processing circuitry counts the number of the pulses received from the sensor. ... Lexmark International Inc

01/12/17 / #20170010549

Chemically prepared core shell toner formulation including a styrene acrylate polyester copolymer used for the shell

A chemically prepared toner composition according to one example embodiment includes a core including at least one polymer binder, a colorant and a release agent; a shell that is formed around the core and includes a third polymer binder; and a borax coupling agent between the core and the shell. The binder for the shell is a styrene acrylic polyester copolymer having a glass transition temperature (tg) between 55° c. ... Lexmark International Inc

01/12/17 / #20170010547

Method of making a core shell toner formulation including a styrene acrylate polyester copolymer used for the shell

The present invention relates generally to methods to make a chemically prepared toner having a core shell structure for use in electrophotography and more particularly to a method to make an emulsion aggregation chemically prepared core shell toner formulation using a styrene acrylic polyester copolymer for the shell. The styrene acrylic polyester copolymer has a glass transition temperature (tg) between 55° c. ... Lexmark International Inc

01/05/17 / #20170001386

Elastomeric roll for an electrophotographic image forming device having compressive hollow microparticles defining a surface texture of the roll

A method for forming a roll core for use in an electrophotographic image forming device according to one example embodiment includes shaping the roll core from a mixture of an uncured elastomer and hollow microparticles. The elastomer of the shaped roll core is cured without permanently expanding hollow microparticles positioned near the outer surface of the shaped roll core. ... Lexmark International Inc








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