Abstract: A method of providing feedback to a student on penmanship may include receiving, by a computing device, a completed assessment that includes one or more handwritten responses of a student, classifying one or more of the responses into one or more classifications by applying intelligent character recognition to the responses, presenting one or more classification results to a user, receiving, by the computing device, validation information associated with the presented classification results, identifying one or more penmanship issues based, at least in part, on the received validation information, generating a second assessment that includes one or more questions designed to improve one or more of the identified penmanship issues, and providing the second assessment to the student.

Abstract: A system and method for making use of formative assessment data collected is disclosed that identifies clusters of students and concurrently determines the characteristics of the student clusters. A decomposition of the data is performed with spectral theories of graphs and fuzzy logic algorithms to identify the clusters of students, clusters of assessment data and relationships between them. An actionable output is presented to teachers for the evaluation of educational progress.

Abstract: Methods and systems of clustering a plurality of students are disclosed. A computing device may receive assessment data for each of a plurality of students. The assessment data includes information pertaining to each of a plurality of questions in an assessment. The computing device may also receive a number of clusters into which to organize the plurality of students. The computing device may determine a similarity value between each pair of students in the plurality of students based on the assessment data associated with each student. The computing device may organize the plurality of students into the number of clusters based on the similarity values.

Abstract: A system and method for making use of formative assessment data collected is disclosed that identifies clusters of students and concurrently determines the characteristics of the student clusters. A decomposition of the data is performed with spectral theories of graphs and fuzzy logic algorithms to identify the clusters of students, clusters of assessment data and relationships between them. An actionable output is presented to teachers for the evaluation of educational progress.

Abstract: The disclosure proposes the automatic use of the job or image content information of a print job. This information is used to automatically adjust the general printing procedure for a print engine. The job's image content information is analyzed in the context of the constraints of the print engine to determine an improved printing procedure, which may include cycle-up operation, process control cycles, or maintenance cycles for that particular print job.

Abstract: This disclosure provides methods and systems for troubleshooting charging and photoreceptor failure modes associated with a xerographic process. Specifically, according to an exemplary method the photoreceptor decay behavior, with and without the effects of depletion, are quantified and used to determine a performance state of one or more of the charging stations and the photoreceptor surface.

Abstract: According to aspects of the embodiments, there is provided methods and systems that incorporate a model predictive controller (MPC) in an image reproduction machine with known disturbance information. The MPC uses the control action at a current time in order to minimize the impact of an impending disturbance as well as to maximize current control performance. The impending disturbance is used by the MPC to determine an incremental change that combines steady state and transient state impact on the image reproduction machine. Disturbance such as print media type, image content type, physical dimension of the print media, weight of the print media, and print job data can be employed. Further, control of the image reproduction machine is generated in real time over a receding horizon, for the purpose of minimizing a cost function indicative of image variation, energy consumption, or the like.

Abstract: This disclosure provides methods and systems for troubleshooting charging and photoreceptor failure modes associated with a xerographic process. Specifically, according to an exemplary method the photoreceptor decay behavior, with and without the effects of depletion, are quantified and used to determine a performance state of one or more of the charging stations and the photoreceptor surface.

Abstract: A system and method for making use of formative assessment data collected is disclosed that identifies clusters of students and concurrently determines the characteristics of the student clusters. A decomposition of the data is performed with spectral theories of graphs and fuzzy logic algorithms to identify the clusters of students, clusters of assessment data and relationships between them. An actionable output is presented to teachers for the evaluation of educational progress.

Abstract: Methods and systems of clustering a plurality of students are disclosed. A computing device may receive assessment data for each of a plurality of students. The assessment data includes information pertaining to each of a plurality of questions in an assessment. The computing device may also receive a number of clusters into which to organize the plurality of students. The computing device may determine a similarity value between each pair of students in the plurality of students based on the assessment data associated with each student. The computing device may organize the plurality of students into the number of clusters based on the similarity values.

Abstract: A method and system generates and administers an individualized student worksheet. A set of problems and a unique embedded data pattern are generated and printed on a worksheet substrate. A teacher may point a camera pen point at an area of the pattern to identify the substrate and a location on the substrate. Based on this information, the method and system may access a worksheet file to identify the problem whose physical position corresponds to the captured embedded data. The system may present the problem's solution to the teacher, who may then use the pen to mark the problem as correct or incorrect, and optionally annotate notes for the student, teacher or others. The camera pen may collect the teacher's marks and annotations and store them with the worksheet file for later retrieval.

Abstract: An asymmetrical printer includes a housing (101) and a first fuser member (121) rotationally supported in the housing. The first fuser member has a first fuser member end (210) and a second fuser member end (220). The first fuser member fuses an image on a media sheet traveling in a media sheet 112 travel direction (115). A fuser nip (126) has a fuser nip width dimension (128) parallel to the media sheet travel direction and having a fuser nip length (116) from the first fuser member end to the second fuser member end. The fuser nip length is perpendicular to the media sheet travel direction. The fuser nip width dimension is asymmetrical along the fuser nip length. A second fuser member (122) is rotationally supported in the housing and coupled to the first fuser member at the fuser nip. The second fuser member fuses the image on the media sheet.

Abstract: An apparatus (100) and method (300) that adjusts a printer fuser nip is disclosed. The apparatus can include a media transport (110) configured to transport a media sheet (112) in a media sheet travel direction. The apparatus can include a fuser assembly (120) configured to fuse an image on the media sheet. The fuser assembly can include a fuser nip (126) that can have a fuser nip width (128) parallel to the media sheet travel direction. The apparatus can include a controller (130) coupled to the fuser assembly, where the controller can be configured to control operations of the apparatus. The apparatus can include a nip width profile generation module (140) coupled to the controller, where the nip width profile generation module can be configured to determine fuser nip width parameters based on media sheet properties and based on fuser assembly properties. The fuser assembly can be adjusted according to the fuser nip width parameters.

Abstract: A fusing apparatus includes a fuser roll and a pressure roll which define a nip therebetween. An internal heat source is disposed within a interior of the fuser roll. An external heat source is disposed adjacent the fuser roll for heating an outer surface of the fuser roll. One or both of the internal heat source and the external heat source is controlled during a print job such that the thermal gradient across the fuser roll is adjusted. As a result, a temperature overshoot which generally occurs after the print job is finished can be reduced. The influence of subsequent jobs on the fuser roll surface temperature can also be accommodated.

Abstract: A method and apparatus for adjusting nip width based on the measured hardness of a fuser roll in an image production device is disclosed. The method may include receiving an identification of media type, receiving a signal to measure fuser roll hardness, positioning a fuser roll hardness measurement unit onto the fuser roll, measuring the fuser roll hardness, and adjusting the nip width based on the measured fuser roll hardness and received media type identification.

Abstract: Optical measurement system and method for determining a wear level of printer components such as fuser rolls. Papers can be treated with optical brighteners, which act as distinct tag/trace molecules with fluorescent properties. A fluorescence pattern on the fuser roll can be changed in accordance with the edge density distribution in the print engine, when paper edges are accumulated on the fuser roll surface. A photo detector can capture a two-dimensional, digital image of the fluorescence pattern on the fuser roll surface to be measured, after illuminating the fuser roll, with intensity near ultraviolet range, by a light source. An image processor with a parameterized model can measure changes in the fluorescence pattern by analyzing the digital image of the fuser roll surface in order to determine the level of edge wear on the fuser rolls.

Abstract: Apparatuses useful for printing and methods of mitigating media edge wear effects in apparatuses useful for printing are provided. An exemplary apparatus useful for printing includes a first roll including a first outer surface; a second member including a conformable second outer surface forming a nip with the first outer surface; and a registration distribution system including a motor for translating at least the second member, relative to a medium passing through the nip, in at least a first zig-zag motion pattern from a first home position to a second home position.

Abstract: An apparatus (100) and method (500) for an asymmetrical printer fuser nip is disclosed. The apparatus can include a housing (101) and a first fuser member (121) rotationally supported in the housing. The first fuser member can have a first fuser member end (210) and a second fuser member end (220). The first fuser member can be configured to fuse an image on a media sheet traveling in a media sheet travel direction (115). The apparatus can include a fuser nip (126) having a fuser nip width (128) dimension parallel to the media sheet travel direction and having a fuser nip length (116) from the first fuser member end to the second fuser member end. The fuser nip length can be perpendicular to the media sheet travel direction. The fuser nip width dimension can be configured to be asymmetrical along the fuser nip length. The apparatus can include a second fuser member (122) rotationally supported in the housing and coupled to the first fuser member at the fuser nip.

Abstract: According to aspects of the embodiments, there is provided methods and systems that incorporate a model predictive controller (MPC) in an image reproduction machine with known disturbance information. The MPC uses the control action at a current time in order to minimize the impact of an impending disturbance as well as to maximize current control performance. The impending disturbance is used by the MPC to determine an incremental change that combines steady state and transient state impact on the image reproduction machine. Disturbance such as print media type, image content type, physical dimension of the print media, weight of the print media, and print job data can be employed. Further, control of the image reproduction machine is generated in real time over a receding horizon, for the purpose of minimizing a cost function indicative of image variation, energy consumption, or the like.

Abstract: A method and apparatus for automatically adjusting nip width based on a scanned nip print image on ultraviolet (UV)-sensitive media in an image production device is disclosed. The method may include receiving a signal to generate a nip print, automatically inserting a sheet of UV-sensitive media into a fuser nip in the image production device, pausing the sheet of UV-sensitive media in the fuser nip for a predetermined time period, illuminating the UV-sensitive media with ultraviolet light to generate a nip print, scanning the generated nip print, determining if a nip width adjustment is required based on the scanned nip print, and if it is determined that a nip width adjustment is required based on the scanned nip print, adjusting the nip width using a nip width adjustment device.