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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 8185028 | Image forming apparatus and auto color registration method thereof An image forming apparatus and an auto color registration method thereof, the auto color registration (ACR) method including: transferring test patterns respectively corresponding to a plurality of colors; detecting the transferred test patterns; cleaning the transf... | 05/22/2012 |
| 8180266 | Method, apparatus and systems for registering the transfer of an image associated with a printing device This disclosure provides a method, apparatus, and system for registering the transfer of an image from a belt to a media substrate associated with a printing device. Specifically, the exemplary methods use a ROS master clock and belt location sensor located downstre... | 05/15/2012 |
| 8175505 | Image forming apparatus with emitted light control based on reflected light amounts An image forming apparatus includes a pattern forming unit which forms a light amount adjustment pattern on an image carrier belt, a light amount control unit which controls the amount of light irradiating the image carrier belt and pattern, a detection sensor which... | 05/08/2012 |
| 8170456 | Method and system for improving image on paper registration in an image printing system The present disclosure provides a method for improving image on paper registration in an image printing system. The method includes advancing a target media along a media path; placing a plurality of registration marks adjacent to a toner image on an image bearing s... | 05/01/2012 |
| 8170455 | Device and method for correcting misregistration, and image forming apparatus A misregistration correcting device includes an image forming unit, a sensor, a reading unit, and a determining unit. The image forming unit form a set of misregistration correcting patterns that includes a reference pattern. The sensors start detecting the set when... | 05/01/2012 |
| 8150302 | Image forming apparatus and image forming method that detects an amount of color misalignment using reflected light A pattern forming unit forms a color-misalignment detection pattern on an image carrier. A light-intensity detecting unit detects the color-misalignment detection pattern formed on the image carrier by irradiating the image carrier with a light and detecting light i... | 04/03/2012 |
| 8145105 | Belt drive control device, belt device, image forming apparatus, and belt drive control method A belt drive control device includes: first and second detection devices which detect the angular displacement or velocity of a driven rotary member and the angular displacement or velocity of a drive rotary member, respectively; an extraction device which extracts,... | 03/27/2012 |
| 8139991 | Image forming apparatus containing color shading correction and bias correction of intermediate transfer belt A bias correction is carried out before a color registration correction is carried out so as to stabilize the running state of an intermediate transfer belt, thereafter the bias correction ceases and the color registration correction is carried out. ... | 03/20/2012 |
| 8131193 | Imaging forming apparatus and method of controlling same An image forming apparatus has a function for adjusting the position at which a toner image is formed on a printing material, based upon amount of light reflected from a toner image that has been formed on an image carrier. The light-emitting unit emits light that i... | 03/06/2012 |
| 8090303 | Image forming apparatus An image forming apparatus, forming a color image by successively superposing color images, formed on image carriers of corresponding image forming parts arranged along a rotational direction of an endless moving member, onto the endless moving member or a recording... | 01/03/2012 |
| 8086155 | Transfer device and image forming apparatus including same A transfer device, which transfers an image onto a recording medium directly or indirectly and is included in an image forming apparatus, includes an endless belt member extended between a drive roller rotated and a driven roller and configured to receive the image ... | 12/27/2011 |
| 8073370 | Image forming apparatus having a mechanism for detecting a mark on a belt A circumferential length of a belt is measured within a short period of time. A plurality of marks is provided on a belt. Distances between the marks are set to be all different from each other. The distance between the marks is set to allow the mark to be identifie... | 12/06/2011 |
| 8064810 | Image forming apparatus with image bearing member adjustment An image forming apparatus includes first and second image bearing members on which toner images are to be formed, a conveying member, and a conveying member position index detecting device for detecting a conveying member position index provided on the conveying me... | 11/22/2011 |
| 8064811 | Image forming apparatus having misregistration correction of the toner image formed by each image forming unit An image forming apparatus includes a plurality of image forming units that form toner images in different color; an image carrier which carries the toner image of each color; a determination unit that determines, in relation to a size of image data instructed to pr... | 11/22/2011 |
| 8064809 | Image forming apparatus with intermediate transfer belt speed detection unit An image forming apparatus includes an endless belt type transfer member configured to carry an image formed with developer of a plurality of colors, a drive roller configured to drive the transfer member by rotating while contacting the transfer member, a first det... | 11/22/2011 |
| 8050603 | Image forming apparatus, image forming method and image forming program An image forming apparatus includes an image forming unit that forms multicolor toner images superposed on a transfer belt. A sensor is disposed in an image formation region and detects a pattern on the transfer belt. A controller determines, when image data is rece... | 11/01/2011 |
| 8041273 | Photosensitive drum unit and image forming apparatus capable of suppressing registration error A photosensitive drum unit includes a frame and a plurality of photosensitive drums. The plurality of photosensitive drums is supported by the frame and has a shape identical with one another. Each of the plurality of photosensitive drums is rotatable about a rotati... | 10/18/2011 |
| 8041274 | Image forming system An image forming system, according to the present invention can include a forming device for forming an image based on printing data, an obtaining device for obtaining an image-formable range specific to the forming device, a determination circuit for determinating ... | 10/18/2011 |
| 8032066 | System and method for correcting color registration A method and apparatus for correcting a color registration are provided for improving the quality of images of an image forming apparatus. A surface condition is estimated of an intermediate transfer belt used to correct a color registration. A determination is made... | 10/04/2011 |
| 8023871 | Image forming apparatus with improved color calibration A controlling section controls an image forming section to form a calibration pattern on an object. The calibration pattern includes a plurality of marks in first and second groups. The marks in the second group are formed at a different position in the second direc... | 09/20/2011 |
| 8010026 | Image forming system and method of detecting color misregistration An image forming system, in which a method of detecting a misregistration of a color image is performed, includes multiple image carriers, an optical writing unit, a transfer member extended by a drive roller and at least one driven roller, a rotation detector, a ro... | 08/30/2011 |
| 7991336 | Image forming apparatus with irradiated light control based on reflected light amounts An image forming apparatus includes a pattern forming unit which forms a light amount adjustment pattern on an image carrier belt, a light amount control unit which controls the amount of light irradiating the image carrier belt and pattern, a detection sensor which... | 08/02/2011 |
| 7986907 | Positional misalignment correcting device and image forming apparatus A positional misalignment correcting device includes a pattern forming unit that forms a correction pattern and a detecting unit that detects the correction pattern. The detecting unit includes one light emitting element and one light receiving element. The pattern ... | 07/26/2011 |
| 7983606 | Transfer belt driving control method and transfer belt driving control apparatus for color registration correction A transfer belt driving control method and transfer belt driving control apparatus for color registration correction. The color registration correction method and apparatus performs the color registration correction by setting a pattern forming section, in which pat... | 07/19/2011 |
| 7965968 | Image forming apparatus The image forming apparatus includes a plurality of photosensitive members, a plurality of exposure portions to perform exposure on the plurality of photosensitive members, a development portion to form a toner image at the plurality of photosensitive members, a tra... | 06/21/2011 |
| 7965967 | Image-forming device with calibration capabilities The pattern data generating unit generates pattern data indicative of a pattern of a plurality of marks including a plurality of first marks each having a first color and a plurality of second marks each having a second color so that a first target-total is equal to... | 06/21/2011 |
| 7949289 | Image forming apparatus and image forming adjustment method Multiple photoconductive drums on which images with different color components are formed respectively are rotated using individual motors, multiple adjustment images are formed at a predetermined interval along the cycle length of one rotation of each photoconducti... | 05/24/2011 |
| 7941082 | Color-image forming apparatus, image forming method, and computer program product A print control unit causes a secondary-transfer control unit to move a secondary transfer unit apart from an intermediate transfer member, causes a direct-transfer control unit to cause a black image forming unit to form a black image and transfer the black image o... | 05/10/2011 |
| 7941083 | Color image forming apparatus An image forming method includes forming toner images on first and second image bearing members; transferring a first toner image on the first image bearing member and a second toner image on the second image bearing member, in mutually superposed manner, onto a rec... | 05/10/2011 |
| 7937032 | Imaging forming apparatus and method of controlling same An image forming apparatus has a function for adjusting the position at which a toner image is formed on a printing material, based upon amount of light reflected from a toner image that has been formed on an image carrier. The light-emitting unit emits light that i... | 05/03/2011 |
| 7929892 | High accuracy multi-color image forming apparatus and method for detecting positioning color image patterns In a multi-color image forming apparatus including a plurality of color image forming units adapted to form a plurality of different color images, a transfer belt to which positioning color image patterns are transferred by the color image forming units, and an opti... | 04/19/2011 |
| 7929891 | Alignment error correcting unit for image forming apparatus An image forming apparatus include: a plurality of photosensitive drums; a latent image forming unit for forming an electrostatic latent image on each photosensitive drum; a developing unit for developing each electrostatic latent image; a transferring unit for supe... | 04/19/2011 |
| 7925196 | Image forming apparatus During a first operation, at least one of a first pattern and a second pattern is formed on a first area of an image carrier, and at least the other pattern is formed on a second area of the image carrier. The first area corresponds to a half of the image carrier, w... | 04/12/2011 |
| 7907880 | Image forming apparatus with a rotating body controlled in a feedback manner and image forming method using a rotating body controlled in a feedback manner If a velocity calculated by a velocity calculating unit deviates from a normal range, a target velocity is used as a feedback amount, an actuation amount corresponding to a deviation Ve=0 between the feedback amount Vf=Vt and the target velocity Vt is calculated, an... | 03/15/2011 |
| 7899377 | Image forming apparatus An image forming apparatus includes: a plurality of image forming units as defined herein; an image carrier as defined herein; a first operation controlling unit as defined herein; a second operation controlling unit as defined herein; a density detecting sensor tha... | 03/01/2011 |
| 7894756 | Image formation device An image formation device has an image formation section, a pattern image detection section and a registration correction section. The image formation section forms an image to be outputted and a pattern image on an image-bearing body, the pattern image is formed at... | 02/22/2011 |
| 7885586 | Image forming apparatus An image forming apparatus capable of always performing image registration adjustment with a high accuracy and realizing a higher image quality without lowering the productivity and deteriorating a cleaning member. A first conveying speed of a sheet being conveyed o... | 02/08/2011 |
| 7885587 | Image forming apparatus with color shift correction suppressing periodic fluctuations of a surface moving speed of a latent image support An image forming apparatus includes a control unit to control a latent image support with a target rate; a first unit to detect patterns; plural parts to be detected revolving with the support; a second unit to detect passing of the part; a first generating unit to ... | 02/08/2011 |
| 7877049 | Image forming apparatus An image forming apparatus includes a vibration detecting sensor. If the vibration detecting sensor detects a vibration at or above a defined level, a toner image for detection is formed, and image forming conditions are controlled based on detection results of the ... | 01/25/2011 |
| 7865119 | Color registration method and image forming apparatus A color registration method in a color image forming apparatus including a plurality of drum-type photoconductors for driving some or all of the photoconductors having the same diameter to match pitch fluctuations which correspond to a rotational cycle of the photoc... | 01/04/2011 |
