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Class 399/51 - Control of exposure


Subclass of Class 399 - Electrophotography
Definition: Subject matter wherein a means or method is provided for
No. of applications: 143
Last issue date: 05/24/2012


1        
Application No.Application TitleIssue Date
20120128383IMAGING 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 irrad...
05/24/2012
20120008968IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF
A frequency adjusting unit adjusts a frequency of the clock signal to be supplied to a drive unit when an image is to be formed on the second face in response to a contraction ratio of the printing material on which an image has been formed on the first face. The phase ...
01/12/2012
20120002990IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Certain embodiments provide an image forming apparatus comprising an image forming part, a detection part, an arithmetic part, a storage device and an image quality maintaining control part. The image forming part forms an image quality maintaining adjustment pattern on...
01/05/2012
20120002987IMAGE FORMING APPARATUS AND METHOD
Certain embodiments provide an image forming apparatus including: an image carrier; a latent image forming unit; a developing unit; a fixing unit; a toner cartridge; a battery in the toner cartridge; a temperature sensor in the toner cartridge driven by the battery; a f...
01/05/2012
20110255891IMAGE FORMING APPARATUS
A first mark and a second mark are provided on a photosensitive drum and a rotation reference position sensor detects these marks. A counter is reset according to a detection signal corresponding to the first mark, and is incremented its count value according to a detec...
10/20/2011
20110243590IMAGE FORMING APPARATUS
An image forming apparatus includes: a light source that emits a light beam; a photosensitive member; a brushless motor including a stator and a rotor; a rotary polygon mirror rotated by the brushless motor; an energization switching unit that turns on/off energizations...
10/06/2011
20110236047OPTICAL SCANNING APPARATUS AND TECHNIQUE FOR CORRECTING OPTICAL CHARACTERISTICS IN AN IMAGE FORMING APPARATUS THAT EMPLOYS AN ELECTROSTATIC RECORDING METHOD OR AN ELECTROPHOTOGRAPHIC RECORDING METHOD
An optical scanning apparatus controls an output of a light source for forming an electrostatic latent image on an image carrier. The optical scanning apparatus includes a correction amount control unit configured to variably control a light quantity correction amount o...
09/29/2011
20110229165IMAGE FORMING APPARATUS
An image forming apparatus has a job-content recognition device for judging whether a number inputted as the number of print copies to be made is larger or smaller than a predetermined reference value; a print-data recognition device for judging whether or not inputted ...
09/22/2011
20110229172APPARATUS CONFIGURED TO FORM PLURAL IMAGES ON AN IMAGE CONVEYOR AND METHOD CONFIGURED TO FORM PLURAL IMAGES ON AN IMAGE CONVEYOR USING THE APPARATUS
An apparatus to form plural images on an image conveyor includes plural photoconductor bodies, a light exposure device, a development device, a transfer device, and a pattern detection device, wherein the light exposure device includes an optical scanning part, a first ...
09/22/2011
20110222883IMAGE FORMING APPARATUS
An image forming apparatus having a first photosensitive member and a second photosensitive member that are arranged side by side along a moving direction of a transfer member, the first photosensitive drum being disposed at an upstream position with respect to the movi...
09/15/2011
20110206395IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF
This invention provides an image forming apparatus, which attains a uniform gloss level of an overall image by preventing regions having different gloss levels from being generated on the image to be formed upon execution of image formation using a transparent toner, an...
08/25/2011
20110182603EXPOSURE APPARATUS, CONTROL METHOD THEREOF, AND IMAGE FORMING APPARATUS
The invention provides an exposure apparatus having a configuration such that, when a single laser light source having a plurality of light-emitting points is driven by a plurality of laser control apparatuses, mutual monitoring of the control state of the respective la...
07/28/2011
20110164891IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME
An image forming apparatus that is operable at a plurality of image forming speeds and can be constructed at low costs without adding circuits or the like. A conversion circuit converts image data into lighting patterns for turning on/off laser light on a basis of each ...
07/07/2011
20110150509IMAGE FORMING APPARATUS
An image forming apparatus includes a profile storage section that stores distortion characteristic of a scanning line, a correcting section that corrects image data by lines in the sub scanning direction, and a registration sensor that detects a pattern image for detec...
06/23/2011
20110150510OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING OPTICAL SCANNING APPARATUS
In an optical scanning apparatus, a light source includes a plurality of light emitting elements. A light beam output from the source is scanned and deflected by a polygon mirror so as to form an electrostatic latent image on a surface of a light sensitive member. A con...
06/23/2011
20110150511Image Forming Apparatus, Image Forming Method and Data Control Device
The apparatus is adapted to deflect a light beam from a laser light source for each of the color components by means of a deflection mirror surface which oscillates, thereby making the light beam reciprocally scan in a main scanning direction. In this apparatus, however...
06/23/2011
20110142464IMAGE FORMING APPARATUS
In an image forming apparatus, an exposure device performs exposure on a non-image area of image pattern, performs an exposure on the image area in an exposure amount lower than the non-image area or does not perform exposure, and an exposure amount control device contr...
06/16/2011
20110129244IMAGE FORMING APPARATUS
This invention has as its object to improve an image formation throughput. An image forming apparatus of this invention times a time required until an image formation is ready to start after a reference signal is output, and executes the image formation when the image f...
06/02/2011
20110129245EXPOSURE HEAD AND IMAGE FORMING APPARATUS
A exposure head includes: a light-emitting element substrate including a first light-emitting element configured to emit light, a second light-emitting element disposed in a first direction of the first light-emitting element, a third light-emitting element, and a fourt...
06/02/2011
20110123210Image Forming Device and Image Forming Method
An image forming device includes: an exposure head having a plurality of light emitting elements arranged in a first direction, a first imaging optical system adapted to image light emitted from the light emitting elements, and a second imaging optical system disposed i...
05/26/2011
20110116819EXPOSING DEVICE AND IMAGE FORMING APPARATUS
An exposing device which radiates light on a photoconductor drum which rotates, thereby executing exposure, includes a light-emitting element unit including light-emitting element having an emission area which emits light that is generated, the emission area having a re...
05/19/2011
20110103813Correction Method, Apparatus, Data Carrier or System for Correcting for Unintended Spatial Variation in Lightness Across a Physical Image Produced by a Xerographic Process
A correction method for correcting unintended spatial variation in lightness across a physical image produced by a xerographic process, the method comprising producing a test image using the xerographic process, measuring a difference between actual lightness and intend...
05/05/2011
20110058831IMAGE FORMING APPARATUS
An apparatus includes: an image carrier; a charger to uniformly charge a surface of the image carrier; an exposing unit to perform write scanning on the image carrier; a developing unit that includes a developer carrier carrying a developer including a toner and that is...
03/10/2011
20110052228METHOD AND SYSTEM FOR BANDING COMPENSATION USING ELECTROSTATIC VOLTMETER BASED SENSING
A method and system for compensating for an image quality defect in an image printing system comprising at least one marking station, the at least one marking station comprising a charging device for charging the image bearing surface, an exposing device for irradiating...
03/03/2011
20110026955Image Forming Apparatus and Exposure Control Method of Controlling Exposure Therein
An image forming apparatus comprising a photosensitive body, a charger configured to charge the photosensitive body, an exposure unit configured to expose the photosensitive body charged by the charger, a developer transport section configured to cause relative movement...
02/03/2011
20100310265IMAGE FORMING APPARATUS
An image forming apparatus which makes it possible to resolve correction error of potential unevenness caused by insufficient mounting accuracy of an image carrier, in a relatively short time period without performing a conventional operation for removing the image carr...
12/09/2010
20100254723EXPOSURE HEAD, EXPOSURE HEAD CONTROL METHOD, AND IMAGE FORMING APPARATUS
An exposure head includes: a light-emitting element; an image formation optical system that forms an image of light from the light-emitting element; multiple reference elements disposed relative to the light-emitting element; and a control unit that controls the light e...
10/07/2010
20100248098IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND STORAGE MEDIUM IN WHICH ABNORMALITY JUDGING PROGRAM IS STORED
An image forming apparatus is provided. An exposure component is equipped with a plurality of light emitting elements arrayed along a first direction. An output component is equipped with output ends corresponding to each of the light emitting elements and the output co...
09/30/2010
20100239288IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
An image forming apparatus that performs a shading correction includes a light source that emits a light beam; a light-source drive unit that drives the light source; and a light-quantity-adjustment-amount control unit that performs an adjustment of a light quantity in ...
09/23/2010
20100226671IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
An image forming apparatus includes: a latent image bearing drum that rotates and on which a latent image is formed; an exposure head having a first light-emitting element that exposes a first region of the latent image bearing drum and a second light-emitting element t...
09/09/2010
20100226672IMAGE FORMING APPARATUS
An image forming apparatus has a first light controller to shift starts of image writing operations of light sources by a first time interval. A test data storage stores, beforehand, test image data having dot columns formed by one-dot images arranged in a row in a sub-...
09/09/2010
20100227270REUSABLE PAPER MEDIA WITH COMPATIBILITY MARKINGS AND PRINTER WITH INCOMPATIBLE MEDIA SENSOR
A reusable image forming medium, including a substrate; an imaging layer coated on or impregnated into the substrate, wherein an irradiation of the imaging layer produces an image; and a signature material coated on or impregnated into the substrate or the imaging layer...
09/09/2010
20100226670IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
An image forming apparatus includes a first latent image carrier that forms a first latent image, a first charging unit that charges the first latent image carrier, and a first exposure unit that exposes the first latent image carrier to light, forming the first latent ...
09/09/2010
20100221027Light Output Device and Image Forming Apparatus Including the Same
A light output device comprises a controller configured to generate a set signal that sets a reference voltage for determining a predetermined value of an output power of the light in a case of power adjustment wherein the output power is changed to a power different fr...
09/02/2010
20100196029IMAGE FORMING APPARATUS
An electrophotographic image forming apparatus having an LED array with a plurality of light emitting elements aligned in a main-scanning direction and a convergent lens array for imaging light emitted from the light emitting elements on a photosensitive member. In orde...
08/05/2010
20100189452Apparatus and method of controlling light level of a light source, and recording medium storing program of controlling light level of a light source
An apparatus and a method of controlling a light level of a light beam irradiated by a light source are provided. The light source is caused to irradiate the light beam having a light level determined based on a light level correction value for a specific main scanning ...
07/29/2010
20100189453IMAGE FORMING APPARATUS
A write reference signal generating unit uses horizontal synchronization signals output from BD sensors to generate, for each laser scanning unit of respective image forming units, a main scanning write reference signal for irradiating laser light from a semiconductor l...
07/29/2010
20100177353IMAGE PROCESSING METHOD AND APPARATUS
An image processing method (300) for converting an original image (601) into a final, pixelated image (610) suitable for printing on a printer arranged to print two-tone images and capable of printing partial area exposed pixels, comprises antialias...
07/15/2010
20100172665IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
An image forming apparatus comprising: a latent image carrying member that carries a latent image; a drive unit that drives to rotate the latent image carrying member; an exposure head that includes a first imaging optical system, a first light-emitting element that emi...
07/08/2010
20100166444IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
An image forming apparatus includes: a latent image carrier which carries a latent image; an exposure head which exposes the latent image carrier to light emitted from a light emitting element; a driver which rotationally drives the latent image carrier; a light emissio...
07/01/2010
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