Abstract: An anti-curl system 1 including a printer configured to deposit a liquid ink and an anti-curl composition onto a print substrate, wherein the liquid ink includes a colorant and is configured for deposit on the print substrate to form a print image, and wherein the anti-curl composition does not include a colorant and is configured for deposit on a non-print area of the print substrate, wherein the non-print area of the print substrate includes at least a portion of a non-print margin area configured for non-deposition of the liquid ink and deposition of the anti-curl composition.

Abstract: A print configuration system will receive, from a first sensing modality, a first message indicating that a user has entered a first region where a print device is located. The system will access a profile for the user to identify a first configuration task, and it will cause the print device to perform the first configuration task. The system will later receive, from a second sensing modality that is different from the first sensing modality, a second message indicating that the user has entered a second region. The second region includes the print device and is a subset of the first region. In response to receiving the second message, the system will cause the print device to perform a second task that is different from the first configuration task.

Abstract: An anti-curl system 1 including a printer configured to deposit a liquid ink and an anti-curl composition onto a print substrate, wherein the liquid ink includes a colorant and is configured for deposit on the print substrate to form a print image, and wherein the anti-curl composition does not include a colorant and is configured for deposit on a non-print area of the print substrate, wherein the non-print area of the print substrate includes at least a portion of a non-print margin area configured for non-deposition of the liquid ink and deposition of the anti-curl composition.

Abstract: Systems and methods of extracting information encoded in a machine-readable image (e.g., an artificial fingerprint) are disclosed. The methods include receiving a machine-readable image and generating a minutiae template from the machine-readable image. The minutiae template includes a plurality of minutiae points, each being representative of a local ridge discontinuity in a human fingerprint. The methods further include identifying, for each of the plurality of minutiae points, a minutia point orientation and a minutia point type, and retrieving, from a data store, a plurality of blocks associated with the identified minutiae point orientations and minutiae point types where each block includes two or more bit values. The retrieved plurality of blocks are concatenated to generate a bit stream encoded in the machine-readable image.

Abstract: Systems and methods for encoding data in a machine-readable image (e.g., an artificial fingerprint) are disclosed. The methods include segmenting a plurality of bits included in a bit stream to be encoded into a plurality of blocks such that each block includes two or more of the plurality of bits. The plurality of blocks are used to generate a minutiae template comprising a plurality of minutiae points each of which is representative of a local ridge discontinuity in a fingerprint, and is associated with a location and an orientation. An artificial fingerprint is generated from the minutiae template, and stored in association with the bit stream. The artificial fingerprint encodes the bit stream and comprises a plurality of ridges and a plurality of valleys.

Abstract: A printed structure, and systems and methods for creating the printed structure are disclosed. The printed structure includes a substrate, a first printed image layer, and a second printed image layer printed at least partially over the first printed image layer. The first printed image layer includes a first variable image printed using a first electrophoretic ink and the second printed image layer includes a second variable image printed using a second electrophoretic ink. The first variable image and the second variable image are configured to selectively change their display states upon application of an electric field.

Abstract: A print configuration system will receive, from a first sensing modality, a first message indicating that a user has entered a first region where a print device is located. The system will access a profile for the user to identify a first configuration task, and it will cause the print device to perform the first configuration task. The system will later receive, from a second sensing modality that is different from the first sensing modality, a second message indicating that the user has entered a second region. The second region includes the print device and is a subset of the first region. In response to receiving the second message, the system will cause the print device to perform a second task that is different from the first configuration task.

Abstract: A printed structure, and systems and methods for creating the printed structure are disclosed. The printed structure includes a substrate, a first printed image layer, and a second printed image layer printed at least partially over the first printed image layer. The first printed image layer includes a first variable image printed using a first electrophoretic ink and the second printed image layer includes a second variable image printed using a second electrophoretic ink. The first variable image and the second variable image are configured to selectively change their display states upon application of an electric field.

Abstract: A system and method provide for automated evaluation of reference point pairs. For each of a set of reference point pairs in an input color space, a straight line connecting the reference points is sampled to generate a set of sampled points. Each of the set of sampled points in the input color space is converted to a sampled point in an output color space. For each of a set of color separations in the output color space, discontinuities are identified, based on the set of sampled points in the output color space. Candidate reference point pairs are identified in the set of reference point pairs for which at least one discontinuity is identified. The candidate reference point pairs can be validated by printing test sweeps, which are each derived from a respective set of sampled points in the output color space, and identifying contour artifacts in the printed test sweeps.

Abstract: A direct-to-object printer includes a plurality of imaging devices that generates image data of 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 controller receives the image data and converts it to an object profile. The controller operates ejectors in the printheads with reference to the object profile to attenuate inconsistent ink image density and ink image distortion.

Abstract: Disclosed are printing methods, apparatus and systems for developing a latent image recorded on a surface, for example, a photoreceptor with developer material. According to an exemplary embodiment, the development method applies a development field voltage between a development station donor member and a development station transport member as a function of a humidity measurement associated with the developer material, the humidity measurement providing a surrogate tribo measurement of the developer material.

Abstract: Disclosed are printing methods, apparatus and systems for developing a latent image recorded on a surface, for example, a photoreceptor with developer material. According to an exemplary embodiment, the development method applies a development field voltage between a development station donor member and a development station transport member as a function of a humidity measurement associated with the developer material, the humidity measurement providing a surrogate tribo measurement of the developer material.

Abstract: A method and apparatus for implementing statistical process control (SPC) in a printing environment to address errant reads of control sensors is provided. The system uses SPC, in systems having feedback control based on control sensor data, to identify errant reads and ensure that such errant reads are not used in the applicable feedback loop. Unnecessary reaction to the errant reads is thus avoided.

Abstract: A method and apparatus for implementing statistical process control (SPC) in a printing environment to address errant reads of control sensors is provided. The system uses SPC, in systems having feedback control based on control sensor data, to identify errant reads and ensure that such errant reads are not used in the applicable feedback loop. Unnecessary reaction to the errant reads is thus avoided.

Abstract: An apparatus and printing machine that contain a cleaner brush with long sweeper fibers orientated along the overall width of the brush, and having a greater length than the majority of fibers of the brush to remove the particles that adhere to the cleaner housing and thus, prevent toner droppings.

Abstract: A method, apparatus and printing machine are disclosed that contain a monitoring system that includes a sensor and artificial stress conditions to determine the cleaner brush life. A comparative analysis is performed from the data provided by the monitoring system of a normal cleaning residual toner particle mass and artificial stress conditions cleaning residual toner particle mass to predict brush cleaner life reliably.