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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8184347 | Opportunistic process control for printers A method is disclosed. The method includes receiving print data at an electrophotographic printer; examining the print data to determine if an image within the print data may be used to perform one or more process control measurements and performing the process cont... | 05/22/2012 |
| 8169674 | Image reading apparatus and method of controlling the same An image reading apparatus capable of changing a main reading unit at an appropriate time point such that a plurality of reading units can be equally used, and a method of controlling the same. The image reading apparatus includes an automatic document feeder, a fir... | 05/01/2012 |
| 8149480 | Image forming apparatus and method for calibration scheduling based on hour-by-hour and day-of-week use frequency An image forming apparatus which is capable of increasing printing efficiency by simplifying the calibration operation in time zones during which the frequency of use of the apparatus is high. An image forming apparatus has a plurality of calibration modes set in ad... | 04/03/2012 |
| 8130427 | Method and apparatus for generating origin signal of encoder When generating an origin signal of an encoder having a scale on which an incremental pattern and the origin pattern are formed, an origin signal having a necessary position and width is generated by software based on an origin waveform obtained from the origin patt... | 03/06/2012 |
| 8125694 | Method of determining number of patches A test chart used for color calibration includes: the number of patches of a first color; and the number of patches of a second color. The number of patches of the first color is determined on the basis of the degree of variation in the colorimetric value of the fir... | 02/28/2012 |
| 8120824 | Image forming apparatus and image forming method An image forming apparatus including: an image forming section which forms an image on a photosensitive drum based on a reference signal which being an image write control signal of a predetermined cycle; a measuring section which detects a rotational velocity of th... | 02/21/2012 |
| 8089667 | Method for determining parameters relevant to the print quality of a printed product The invention provides a method for determining parameters relevant to the print quality of a printed product. A macroscopic photogram of a measuring field of the printed product is recorded using a camera having a macro lens. An actual value of a parameter relevant... | 01/03/2012 |
| 8089668 | Method of compensating for clipping in input scanners Systems and methods are described that facilitate improving error estimation for calibration error due to clipping of pixels, and compensation therefor, during calibration of a scanner or printer. Calibration patches are measured at a first maximum pixel value thres... | 01/03/2012 |
| 8064110 | Adaptive auto white balance An imaging system generates a gain for a component of an image format. The gain is at least partially dependent on the brightness of the light source illuminating a scene when an image of the scene was generated. The gain can be used to correct the component of the ... | 11/22/2011 |
| 8059318 | Color image forming apparatus and control method therefor A color image forming apparatus includes a density sensor which detects the light reflecting characteristics of an unfixed toner image formed on an image carrier or a transfer material carrier, and a color sensor which detects the light reflecting characteristics of... | 11/15/2011 |
| 8049939 | Method, apparatus and computer program for generating transfer functions to be used in a printiing system A method of generating transfer functions to be applied to the input data of an image to be printed by a printing apparatus using a group of colorants, each colorant being assigned to the rendering of a distinct color channel, includes determining a maximum total ar... | 11/01/2011 |
| 8004729 | Low cost adjustment method for printing systems A method of adjusting a printing system includes providing a printing system including a plurality of marking engines that include first, second and third actuators. The method includes setting each of the actuators of each marking engine to predetermined values, an... | 08/23/2011 |
| 7978382 | Computer readable medium recording a calibration program, calibration method, and calibration system for detecting patch positions during acquisition of calorimetric values from a patch sheet A computer readable medium records a calibration program, which causes a control device to execute calibration processing of reading as image data a patch sheet output from an image formation device, having a plurality of patch patterns formed as images based on dif... | 07/12/2011 |
| 7969625 | Pitch to pitch online gray balance calibration with dynamic highlight and shadow controls An automatic gray balance control system to produce TRCs for all primary colors in a reproduction device and for each pitch of a photoreceptor system by printing target patches for each pitch, measuring the output colors, and automatically readjusting the tone repro... | 06/28/2011 |
| 7969624 | Method and system for identifying optimal media for calibration and control Disclosed herein are optimal or near optimal algorithms implemented as software tools that will allow the user/machine to identify optimal media out of the job set automatically. There are at least two main process steps to the exemplary embodiment. The first step i... | 06/28/2011 |
| 7957043 | Image recording apparatus and image recording method In an image recording apparatus, shift times for shifting switching timings of light modulator elements are obtained so that rise times (U1) after input of output start signals to driving elements connected to respective light modulator elements of a spatial ... | 06/07/2011 |
| 7944592 | Image capture device Embodiments of a method performed by an image capture device are provided. The method includes performing a calibration operation on a photosensor array of the image capture device using a background surface with a substantially uniform grey color and performing a s... | 05/17/2011 |
| 7907314 | Image forming apparatus An image forming apparatus has a mode selector that can select a mode of operation in which the image forming apparatus remains online despite an empty printing media container or another error condition. This mode enables a host device to switch from an empty print... | 03/15/2011 |
| 7898704 | Image output controller An image output controller is capable of directly or indirectly controlling a printer printing a color chart and a color measuring apparatus carrying out color measurement for the color chart. When color authentication is executed for an optionally set image, a proc... | 03/01/2011 |
| 7894108 | System for matching outputs of multiple digital printers A system controls multiple digital printers, each printer including a processor, which processes incoming image data to be printed, and an engine, which places marks on a print sheet. A system-wide database includes a software portion, which contains data relating t... | 02/22/2011 |
| 7889402 | Method for limiting total colorant coverage using multidimensional simplicial subdivision and barycentric interpolation Systems and methods for limiting total colorant in a color rendering system are disclosed. Implementation of the present invention provides for transformation of a specified colorant in which the sum of the colorant components exceeds a total area coverage (TAC) lim... | 02/15/2011 |
| 7889403 | Methods and apparatus for calibrating a digital color imaging device that uses multi-hue colorants Methods and apparatus are provided for calibrating a digital color imaging device to a printing press by determining a total colorant limit, per-channel colorant limits, and channel linearization tables using colorimetric and/or spectrophotometric techniques. In add... | 02/15/2011 |
| 7880941 | Image forming device, and calibration method and computer readable medium therefor An image forming device, which is capable of double-side printing to form an image on each of first and second sides of a recording medium, includes a calibration unit configured to perform calibration for modifying quality of the image to be formed, a first judging... | 02/01/2011 |
| 7847987 | Method of compensating a zipper image by a K-value and a method of calculating a K-value A method is disclosed as including scanning a first pixel of an image with a primary scanning line of a sensor, and scanning a second pixel of the image with a secondary scanning line of the sensor, wherein the first pixel is separated from the second pixel by a pit... | 12/07/2010 |
| 7847986 | Multiband color management Systems and methods providing multiband color management are described. In one aspect, source peripheral device primary color spectra are determined. Target peripheral device primary color spectra are also identified. Source and target color spaces are respectively ... | 12/07/2010 |
| 7843615 | Method of matching a digital printing press with the color characteristics of a plate-based press platform A method of managing the production of tickets in accordance with a ticket order submitted to a ticketing services bureau by a customer includes an optional step of producing a physical ticket proof for the customer prior to execution of the ticket order. Preferably... | 11/30/2010 |
| 7835043 | Imaging device and calibration method therefor An imaging device and calibration method therefore forms a plurality of hard images upon media using user-defined image data. An optical characteristic of at least a portion of the hard images is sensed at a plurality of different spatial locations of the hard image... | 11/16/2010 |
| 7830564 | Method of obtaining correction value of optical sensor and recording apparatus A method of obtaining a correction value of an optical sensor detecting an edge of the medium so as to generate detection information, includes: acquiring edge information on an edge position of one of opposite edges of the medium based on the detection information;... | 11/09/2010 |
| 7821687 | Method for dynamically compensating for a faulty pixel in a scan line generated by a scanner A method for dynamically compensating for a faulty pixel in a scan line of a scanner having an image sensor with a plurality of sensor pixels includes generating digitized scan data; processing the digitized scan data to compensate for any faulty pixels of the plura... | 10/26/2010 |
| 7817315 | Method for adjusting a controller of a scanner A method for adjusting a controller of a scanner includes obtaining a scan of a predefined image. The method further includes moving the sensor-element signals of the control signal pattern generated by the controller earlier in the pattern by at least one unit and ... | 10/19/2010 |
| 7804629 | System and method for estimating toner usage for a printing system A method for determining a toner usage estimate for a print job to be performed by a printing system having at least one print engine and at least one controller includes determining a set of print conditions for the print job and selecting a set of parameters assoc... | 09/28/2010 |
| 7800798 | Print quality measuring method and print quality measuring apparatus A representative color determining step is executed to determine, from image data, a representative color characterizing an image of a print, and positions of the representative color. A gray control color determining step is executed to determine, from the image da... | 09/21/2010 |
| 7764410 | Image scanner and copying apparatus An image scanner including a plurality of light receiving units, a signal processing device, a connector and a determination device is provided. The plurality of light receiving units receive reflected light from an object to be scanned per each pre-divided area. Th... | 07/27/2010 |
| 7742204 | Methods and apparatus for determining a total colorant limit for digital imaging devices Methods and apparatus are provided for calibrating a digital color imaging device to a printing press by determining a total colorant limit, per-channel colorant limits, and channel linearization tables using colorimetric and/or spectrophotometric techniques. In add... | 06/22/2010 |
| 7738147 | Method of monitoring at least one printing parameter of printer, method of determining and sending at least one printing parameter of a printer, printing system and printer A printing system having a control arrangement and at least one printer, which are connected to each other via a communications network, in which the printer comprises the following components: a sensor arrangement with at least on... | 06/15/2010 |
| 7724406 | Halftone independent color drift correction A method for compensating for color drift in a printer includes determining a first true tone response curve for a color channel when said printer is in a first state. A first estimated tone response curve for the color channel is also determined when said printer i... | 05/25/2010 |
| 7715069 | Method for measuring density, printing method, method of calculating correction value, method of manufacturing printing apparatus and method for obtaining correction value A method for measuring density, includes: forming on a medium a pattern that consists of a plurality of dot rows formed respectively in a plurality of row regions lined up in a direction intersecting a movement direction in which a plurality of nozzles move, by form... | 05/11/2010 |
| 7706031 | Pitch to pitch online gray balance calibration with dynamic highlight and shadow controls An automatic gray balance control system to produce TRCs for all primary colors in a reproduction device and for each pitch of a photoreceptor system by printing target patches for each pitch, measuring the output colors, and automatically readjusting the tone repro... | 04/27/2010 |
| 7701624 | Image-forming device for correcting printing characteristics In a color laser printer, the printing density of images to be formed is corrected based on a correction values stored in a control memory, For each printing operation the printer determines whether the correction values stored in the control memory matches a value ... | 04/20/2010 |
| 7692830 | Luminance nonuniformity adjustment method and luminance nonuniformity adjustment module using this method A luminance nonuniformity adjustment module for eliminating luminance nonuniformities in light emitting elements determines a luminance correction coefficient for each light-emitting element through a test print. The luminance nonuniformity adjustment module compris... | 04/06/2010 |
