Abstract: A direct-to-object printer includes an object indexing subsystem. The object indexing subsystem includes an indexer actuator that operates a rotating indexer to rotate a collar in which an object is mounted. The amount of collar rotation enables the object held by the collar to be turned a predetermined angular amount so operation of the indexing subsystem between passes by a plurality of printheads enables different portions of a curved object surface to be printed during different passes.

Abstract: A printer for producing a print media moving in a process direction including a print engine, a fuser, a full width array and a duplexing path. The print engine is operatively arranged to receive the print media and to apply a first dry marking material to a first surface of the print media. The fuser is arranged subsequently to the print engine in the process direction and is operatively arranged to receive the print media with the first dry marking material applied to the first surface of the print media and to fix the first dry marking material on the first surface using at least one of heat and pressure. The full width array is arranged subsequently to the fuser and is operatively arranged to obtain a first image of the first surface of the print media, the first image being used to quantify a flatness of the print media and/or image quality of the first image. The duplexing path is arranged subsequently to the full width array.

Abstract: A gravity-assisted registration system suited to use in a printing device includes a transport member with a surface on which an associated sheet is translated in a process direction. The surface defines an angle with respect to horizontal in a cross-process direction. A registration wall, adjacent a lower end of the surface, defines a registration edge for registering the sheet. A drive mechanism drives at least one rotation mechanism, for translating sheet in the process direction, each rotation mechanism including at least one drive member with an axis of rotation parallel to the surface in the cross-process direction, Each drive member includes a sliding mechanism, at a periphery of the drive member, enabling the sheet to slide, under gravity, on the surface, toward the registration wall into an alignment position, in contact with the registration wall.

Abstract: This disclosure relates to a method for estimating a particle size distribution (PSD) and a morphology for a set of particles. A computer system receives a plurality of chord length distributions (CLDs) of different types for a set of particles. The computer system then estimates a morphology for the set of particles based on the plurality of received CLDs. The computer system also identifies a plurality of descriptors of the plurality of CLDs for the set of particles based on the plurality of received CLDs. The computer system then estimates metrics for the PSD for the set of particles based on the plurality of identified CLD descriptors. Based on the estimated PSD metrics for the set of particles, the computer system generates an estimate of the PSD for the set of particles. Finally, the computer system outputs the estimated morphology and the estimated PSD for the set of particles.

Abstract: Embodiments disclosed herein relate to a model for predicting the release profile of a controlled release device. The implant modeling system and models disclosed herein allow the accurate prediction of a release profile for a controlled release device based on features extracted from micro-resolution imagery. The models combine microstructural features that can be extracted at the XRCT resolution, including pore volume and connectivity, using erosion-dilation image analysis. This strategy allows prediction of release curves of the controlled release device using XRCT despite its resolution limitations.

Abstract: A registration system for a printing device and a method for controlling the same are disclosed. For example, the registration system includes at least one sensor, omni wheels, a motor coupled to each omni wheel, a translating carriage, and a processor communicatively coupled to the at least one sensor, the motors, and the translating carriage, wherein the processor calculates a desired movement to move the omni wheels and the translating carriage based on the position of the print media.

Abstract: A registration system for a printing device and a method for controlling the same are disclosed. For example, the registration system includes at least one sensor, omni wheels, a motor coupled to each omni wheel, and a processor communicatively coupled to the at least one sensor, and the motors, wherein the processor calculates a desired movement to move the omni wheels based on the position of the print media.

Abstract: A gravity-assisted registration system suited to use in a printing device includes a transport member with a surface on which an associated sheet is translated in a process direction. The surface defines an angle with respect to horizontal in a cross-process direction. A registration wall, adjacent a lower end of the surface, defines a registration edge for registering the sheet. A drive mechanism drives at least one rotation mechanism, for translating sheet in the process direction, each rotation mechanism including at least one drive member with an axis of rotation parallel to the surface in the cross-process direction, Each drive member includes a sliding mechanism, at a periphery of the drive member, enabling the sheet to slide, under gravity, on the surface, toward the registration wall into an alignment position, in contact with the registration wall.

Abstract: Devices include electrically conductive elements contacting a vacuum belt, and a voltage source connected to the electrically conductive elements. The electrically conductive elements form an electrical circuit from the voltage source, through the belt, and back to the voltage source. The electrically conductive elements are positioned so that they are separated from the belt when the belt moves the sheets of media between the electrically conductive elements and the belt. A processor is capable of identifying leading edges of the sheets of media on the belt (when voltage of the electrical circuit changes from a relatively higher voltage to a relatively lower voltage) and identifying trailing edges of the sheets of media on the belt (when the voltage of the electrical circuit changes from the relatively lower voltage back to the relatively higher voltage).

Abstract: A direct-to-object printer includes an image projector that projects an image on an object secured in a holder before the holder and the object pass a plurality of printheads for printing an ink image on the object. A camera generates a sequence of images of the projected image on the object to enable an operator to select a position on the object for the printing of the image and to identify distortion in the image through a user interface so a controller can modify operation of the printheads to attenuate the distortion in the image printed on the object.

Abstract: A direct-to-object printer includes an object indexing subsystem. The object indexing subsystem includes an indexer actuator that operates a rotating indexer to rotate a collar in which an object is mounted. The amount of collar rotation enables the object held by the collar to be turned a predetermined angular amount so operation of the indexing subsystem between passes by a plurality of printheads enables different portions of a curved object surface to be printed during different passes.

Abstract: What is disclosed is an object holder for retaining an object in a direct-to-object print system and a direct-to-object print system configured to use various embodiments of the object holder of the present invention. The object holder comprises a shuttle mount configured to slideably traverse a support member positioned parallel to a plane formed by at least one printhead of a direct-to-object print system. An expandable bladder attached to either the shuttle mount or a restraint. The bladder is inserted in a cavity of an object to be printed. A pump then fills the bladder with either a gas or a liquid to cause the bladder to expand. The expanded bladder in the object's cavity enables a surface of the object to be printed. In one embodiment, the filled bladder substantially conforms to a shape of a human foot, and the object being printed is footwear.

Abstract: 3-D printing system include development stations positioned to electrostatically transfer build and support materials to an intermediate transfer surface, a transfer station adjacent the intermediate transfer surface, guides adjacent the transfer station, and platens moving on the guides. The guides are shaped to direct the platens to repeatedly pass the transfer station and come in contact with the intermediate transfer surface at the transfer station. The intermediate transfer surface transfers a layer of the build and support materials to the platens each time the platens contact the intermediate transfer surface at the transfer station to successively form layers of the build and support materials on the platens. The platens and the intermediate transfer surface include rack and pinion structures that temporarily join at the transfer station, as the platens pass the transfer station, to align the platens with the intermediate transfer surface as the platens contact the intermediate transfer surface.

Abstract: 3-D printing system include development stations positioned to electrostatically transfer build and support materials to an intermediate transfer surface, a transfer station adjacent the intermediate transfer surface, guides adjacent the transfer station, and platens moving on the guides. The guides are shaped to direct the platens to repeatedly pass the transfer station and come in contact with the intermediate transfer surface at the transfer station. The intermediate transfer surface transfers a layer of the build and support materials to the platens each time the platens contact the intermediate transfer surface at the transfer station to successively form layers of the build and support materials on the platens. The platens and the intermediate transfer surface include rack and pinion structures that temporarily join at the transfer station, as the platens pass the transfer station, to align the platens with the intermediate transfer surface as the platens contact the intermediate transfer surface.

Abstract: A method, non-transitory computer readable medium, and apparatus for adjusting and moving a user interface for single handed use on an endpoint device are disclosed. For example, the method determines a thumb span of a hand of a user on a touch screen display of the endpoint device, detects via one or more sensors on the endpoint device that the user is holding the endpoint device with a single hand, adjusting a size of the user interface to be within dimensions of the thumb span in response to the detecting and moves the user interface in a direction towards the single hand in response to the detecting.

Abstract: An apparatus, method and non-transitory computer readable medium for printing on a spherical object are disclosed. For example, the apparatus includes a print head, at least two wheels, wherein each one of the at least two wheels rotates around a single axis, at least one ball support coupled to a mechanical arm, wherein the at least one ball support rotates 360 degrees around and is positioned to secure the spherical object against the at least two wheels and a controller in communication with the print head and the at least two wheels to rotate the spherical object via the at least two wheels into a position to print via the print head.

Abstract: A jetting-fault analysis system can include a print head with a plurality of nozzles for ejecting a print medium, a testing substrate that can include a carrier and at least one color-changing material that changes color and forms a color pattern upon exposure to at least one color-change inducer, an applicator for delivering a color-change inducer to the testing substrate, and a color-pattern imaging system for analyzing the color pattern.

Abstract: A system and method are provided for improving stack integrity for a set of image receiving media substrates at an output of a compiler in an image forming device by positioning a particularly configured substrate handling device downstream of the output of the compiler in a process direction. The substrate handling device is configured of a plurality of omni-directional wheeled devices that provide drive (traction) normal to a motor axis under control of one of a respective plurality of independent motors while allowing sliding in the motor axis direction. The omni-directional wheeled devices, in one embodiment, are configured with small roller wheels along the periphery of the wheel. When using three or more omni-directional wheeled devices, translational movement can be combined with rotation to deliver sheets of image receiving media exiting the compiler at a correct angle and lateral position for further processing.

Abstract: The process for making silver powder particles with very small size crystallites uses a combination of gum arabic and maleic acid with the reduction of a silver salt with ascorbic acid. Silver thick film paste containing these silver powder particles can be used in electronic applications to form electrodes for semiconductor devices and, in particular, solar cells.

Abstract: A shuttling nip set sheet inverter is for use with a digital printing system. A shuttle nip selectively rotates in a forward or reverse direction. The shuttle nip rollers are mounted for mutual revolving orbit about an orbital axis. The shuttle nip rollers are also mounted for mutual translation in the process direction. An inversion nip is disposed adjacent a main nip and downstream from the shuttle nip. A diverter gate has a first end adjacent the shuttle nip and a second end adjacent the inversion nip. In duplex operation, the media sheet lead edge will pass through the shuttle nip. The shuttle nip will revolve orbitally and translate downstream. The trail edge will become the lead edge, inverting the media sheet, which enters the main nip. The diverter gate moves from an inversion position to a storage position away from the process path.