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| Number | Title | Issue Date |
| 8078076 | Image forming apparatus that controls width of correction pattern An image forming apparatus generates a color image on a transfer belt by superimposing toner images of respective colors generated by image forming units, and transfers the color image onto a transfer medium. The image forming apparatus includes a correction pattern... | 12/13/2011 |
| 8073353 | Image forming apparatus A controlling section controls an image forming section to form a calibration pattern on an object. The calibration pattern includes a plurality of first patterns and a plurality of second patterns. Each of the first patterns includes at least one pair of marks. Eac... | 12/06/2011 |
| 8005390 | Optimization of reload performance for printer development systems with donor rolls A method creates a printing image charge on a photoreceptor printing region of a photoreceptor within a printing apparatus and, simultaneously with the creating of the printing image charge, charges source patches on the photoreceptor outside the photoreceptor print... | 08/23/2011 |
| 7949276 | Image formation apparatus and associated methodology for patch image frequency updating An apparatus and method to update patch image formation frequency, in which an electrostatic latent image is formed on an image supporting object, and the electrostatic latent image is developed with a toner. The image formation apparatus includes a developing unit,... | 05/24/2011 |
| 7912393 | Image-forming device with a density measuring unit An image-forming device includes an image-forming unit, a test image memory, a test image forming unit, a density measuring unit, an abnormality determining unit, a test image re-forming unit, and a density re-measuring unit. The image-forming unit forms an image on... | 03/22/2011 |
| 7907862 | Image forming apparatus, image forming method, program, and storage medium In order to determine the image quality of an encoded image in consideration of the printing characteristic of an output apparatus (e.g., a copying machine and a printer), the image forming apparatus has an intermediate formation unit for forming dots that are based... | 03/15/2011 |
| 7869732 | Amplitude modulation of illuminators in sensing applications in printing system An image printing system includes a print engine and a sensing system. The print engine is configured to print a marking material image on a image bearing surface. The sensing system includes a plurality of illuminators, a modulator, a sensor, and a demodulator. Eac... | 01/11/2011 |
| 7801458 | Image forming apparatus to control print concentration and method of controlling the same An image forming apparatus to print at least one of a plurality of test images and texts at various print concentration levels such that confusion of a user due to a change of a print concentration level is prevented, and a method of controlling the same. The method... | 09/21/2010 |
| 7764897 | Color image forming apparatus and control method therefor A color image forming apparatus which is capable of performing color misregistration correction, and registration of images and a recording sheet while reducing the toner consumption amount. An image forming section is caused to form a first reference image having a... | 07/27/2010 |
| 7668474 | Image forming apparatus An image forming apparatus is supplied which is able to eliminate redundant item in checking and adjusting print quality before executing print process and only perform item check being really necessary so as to reduce waiting time of user. In the image forming appa... | 02/23/2010 |
| 7580650 | Image forming device and image forming method including formation of a toner patch An image forming device including: an image carrier, being an endless belt, on which a toner image is to be formed; a resistance measuring unit operable to measure a distribution of electric resistances on a surface of the image carrier; a toner patch forming positi... | 08/25/2009 |
| 7555234 | Scheduling system for placing test patches in a printing apparatus A method of operating a printing apparatus, the apparatus having a rotatable imaging member and an imaging station useful in creating printable images and test patches on the rotatable imaging member. Data is obtained relating to images desired to be printed in a ti... | 06/30/2009 |
| 7421217 | Image forming apparatus, image forming method, toner counter and calculation method of toner consumption An image forming apparatus of forming an image corresponding to image data is formed on a recording medium comprises a data processor which performs data processing of input image data so that a first correlation will be established between a target image density ex... | 09/02/2008 |
| 7418216 | System for predicting erasure of test patches in a printing apparatus In a printing apparatus having a rotatable imaging member, a test patch is created in a predetermined area of the imaging member. A density of the test patch is measured at least a first time, corresponding to a first rotation of the imaging member. Based at least p... | 08/26/2008 |
| 7400840 | Image forming device that performs density detection During a first rotation of a photoconductor, latent electrostatic images for color correction processing patterns are formed on the photoconductor, and the latent electrostatic images are developed into the color correction processing patterns in each of four colors... | 07/15/2008 |
| 7385737 | Image processing apparatus and its control method Image control which requires time and troublesome work cannot be frequently performed, and image quality such as tonality reproducibility cannot be sufficiently stabilized in correspondence with constantly varying image characteristic of image forming apparatus. Acc... | 06/10/2008 |
| 7376363 | Method and apparatus for image forming capable of effectively performing color image position adjustment An image forming apparatus including a plurality of detachable image forming devices each for forming a color image, an image carrying device for carrying the color images sequentially overlaid into a single color image, an exchange detecting device for detecting an... | 05/20/2008 |
| 7359652 | Image forming apparatus with tone correction and control method thereof A first pattern is formed on a recording medium using a dark color substance and light color substance with substantially the same hue by supplying first pattern data to an image forming unit, and the density of the pattern is detected. If a variation in the detecte... | 04/15/2008 |
| 7349133 | Image reading apparatus An image reading apparatus that detects failure in the white LEDs constituting a white LED array. Failure in the white LEDs is detected by comparison between a prescribed current threshold and the current running in the LED array detected by an image reading apparat... | 03/25/2008 |
| 7333740 | Image-formation control apparatus, method for calibrating image forming apparatus, and program An image-formation control apparatus is connected to an image forming apparatus for forming an image on a medium with a plurality of color materials. The image-formation control apparatus includes a receiving unit and a first calibration unit. The receiving unit rec... | 02/19/2008 |
| 7324769 | Image forming apparatus having a changeable adjustment toner image positioning feature In an image forming apparatus in which an maximum image width for image forming is smaller than the sum of a maximum recording material width of a usable recording material and length of two pattern images for a density correction and a registration deviation correc... | 01/29/2008 |
| 7312890 | Printing apparatus A method of applying a control strip having an appropriate size in accordance with the size of a print image is provided. Print image data is rasterized or RIP-processed in Step S1. Image layout data is acquired from the print image data in Step S2. Th... | 12/25/2007 |
| 7313352 | Image forming apparatus, method of controlling same, machine-readable medium and process cartridge In an image forming apparatus, a pattern forming unit forms a pattern for ameliorating image positional displacement, and a detecting unit detects the pattern. An ameliorating unit ameliorates an image positional displacement based on the pattern detected. If for ex... | 12/25/2007 |
| 7305195 | Image forming apparatus, method of calculating amount of toner transfer, methods of converting regular reflection output and diffuse reflection output, method of converting amount of toner transfer, apparatus for detecting amount of toner transfer, gradation pattern, and methods of controlling toner density and image density An amount of toner transfer on a reference pattern is calculated by using an optical detecting unit that detects both regular reflection light and diffuse reflection light from a detection target simultaneously, based on a relative ratio between a value obtained by ... | 12/04/2007 |
| 7283139 | Image processing device for transmitting color with fidelity and product selling method using the same An image processing device (1) provides a client device (3) with a first test pattern image, acquires the results of evaluation concerning distinguishability of the image by human eyes, acquires color expression characteristics of the client device ( | 10/16/2007 |
| 7283143 | Measurement and control of high frequency banding in a marking system A method of measuring and controlling high frequency banding, the method includes creating a test pattern, sensing the test pattern with optical sensors, determining a beat frequency based on the sensed test pattern, and determining the frequency, phase and amplitud... | 10/16/2007 |
| 7274888 | Image forming apparatus An image forming apparatus having an image forming unit for forming toner images on an image carrier, a transfer unit for transferring an image on an image carrier onto a transfer medium, a detecting unit for detecting a toner image for detection on the image carrie... | 09/25/2007 |
| 7274887 | System and method for setup of toner concentration target for a toner concentration sensor A method by which the target of a toner concentration (TC) sensor can be set up based on the equivalent developability concept without using an expensive patch generator. First, use a black toner area coverage (BTAC) sensor to measure the relative reflectance (RR) o... | 09/25/2007 |
| 7272334 | Image on paper registration alignment A method is provided for aligning images on media produced by one or more print engines in an integrated print system. The method includes printing a first pattern of first symbols on a first region of a print medium with a first print engine and printing a second p... | 09/18/2007 |
| 7272333 | Image quality measurements using linear array in specular mode A method and system for controlling a printing device's tone reproduction curve, which may minimize contouring and help maximize the number of shades or colors available for an output image. ... | 09/18/2007 |
| 7272332 | Image forming apparatus and density correction data creation method used therein An image forming apparatus is arranged such that one reference test pattern image expressed in a tone expression is formed on the predetermined image bearing member, the tone expression being different from a tone expression of an image formed in the print modes tha... | 09/18/2007 |
| 7269369 | Image forming apparatus with reduced paper consumption In a color image forming apparatus, a user need not exchange a sensor, paper is prevented from being wastefully consumed, and image quality and color reproducibility can be improved. The color image forming apparatus includes a detecting unit which detects the densi... | 09/11/2007 |
| 7263301 | Inline purge capability (purge while run) to improve system productivity during low area coverage runs A method controlling toner age in a developer housing including: recording a latent image in a predefined image frame on an imaging surface; and generating a purge patch in an unused portion of the predefined image frame. Other features include generating an inline ... | 08/28/2007 |
| 7260334 | Method for controlling a printer or copier using a toner mark band and reflex sensor working according to the triangulation principle A method and device controls a printer or copier to generate a plurality of marks that are assembled into a coherent marking band that is then inked by the toner. A sensor measures the marking band. The printer or copier are controlled based on the output of the sen... | 08/21/2007 |
| 7251442 | Color image forming apparatus having advanced transfer system An image forming apparatus having an intermediate transfer body in which color toner images are superimposed on the intermediate transfer body is disclosed. Additionally, the toner image potential may be suppressed in areas with large toner electrostatic charge of t... | 07/31/2007 |
| 7251422 | Image correction method and image forming apparatus One embodiment of an image correction method is an image correction method for correcting image forming condition(s). The image correction method includes forming, on photoreceptor(s), correction test pattern(s) having continuously varying toner gradation; wherein a... | 07/31/2007 |
| 7245842 | Image forming apparatus, image forming system, image forming condition adjusting method, computer program carrying out the image forming condition adjusting method, and recording medium storing the program An image forming apparatus including: at least one image forming unit including an image bearing member bearing a latent image and a developing device configured to develop the latent image with a developer including a toner to form a toner image thereon; optionally... | 07/17/2007 |
| 7233749 | Image forming device for performing calibration by patch pattern An image forming device, has an image carrier on which a latent image is formed, and a development device to which a plurality of development units for containing developer with the same color are detachably installed, and development is performed by attaching the d... | 06/19/2007 |
| 7228083 | Image forming apparatus An image forming apparatus having an image forming portion, a sheet conveyance path, an image density detection portion for detecting density of the image formed on the conveyed sheet, and a control portion for performing density adjustment of the image formed on th... | 06/05/2007 |
| 7227667 | Printer controller responsive to skew and magnification error A printer controller comprising a rasterizing part for producing raster data as printing data, a skew correcting part for correcting the raster data for a skew error in accordance with a correction coefficient delivered form the color image forming device and indica... | 06/05/2007 |
