U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5443036

Method of exercising a cat

A method for inducing cats to exercise consists of directing a beam of invisible light produced by a hand-held laser apparatus onto the floor or wall.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 399/53 - Control of developing


Subclass of Class 399 - Electrophotography
Definition: Subject matter wherein a means or method is provided that
No. of patents: 260
Last issue date: 12/27/2011


1              
NumberTitleIssue Date
8086124Image forming apparatus
An image forming apparatus including toner image forming means for forming a having chromatic toner image a transparent toner image; fixing means for heating and fixing the non-transparent toner image and the transparent toner image on recording material; glossiness...
12/27/2011
8068752Image forming apparatus and method for controlling image forming apparatus
An image forming apparatus is provided that reduces the occurrence of downtime in the case in which the interval between sheets needs to be expanded, and also suppresses the degradation of a photosensitive drum and a developing roller, when continuously forming imag...
11/29/2011
7995942Developing apparatus of image forming apparatus and supplying method of toner
A developing unit that includes a stirring roller stirring a developer and a developing roller and develops an electrostatic latent image formed on an image carrier to form a toner image; a drive source that rotationally drives the developing roller and the stirring...
08/09/2011
7970304Method of improving developed flat field uniformity
Flat field uniformity can be improved in images produced by an image development system having a development roller interposed between a supply of developer and an imaging element. A raw feed of developer is supplied from the developer supply to the development roll...
06/28/2011
7890007Image formation apparatus, an image formation method, an image formation program, and a computer-readable recording medium
An image formation apparatus, an image formation method, an image formation program, and a computer-readable recording medium are provided, a rotation of the developer supply roller is controlled in order to prevent plugging of the developer supply roller based on q...
02/15/2011
7796904Apparatus and method of driving developing unit and image forming apparatus employing the same
A developing unit driving apparatus which drives a developing unit having a toner cartridge to accommodate a toner, a developing part disposed in the toner cartridge to develop the toner to a photosensitive body, and a toner supplying part provided in the toner cart...
09/14/2010
7697858Image forming apparatus
An image forming apparatus includes a developer storage tank which stores a developer therein and has a developer discharger to discharge the developer therethrough, a developer receiver which receives the developer, a delivery member which is connected with the dev...
04/13/2010
7680426Image forming apparatus with air flow blocking mechanism
In a configuration with a plurality of developing units, an influx of air into one developing unit from another developing unit can be blocked with a simple configuration. An operation section for a developing unit that is not in operation rotates a developer roll i...
03/16/2010
7676167Apparatus and method for forming an image with variable processing speed or variable developer mixing speed
An apparatus for forming an image according to the present invention includes a coverage rate finder, a developing unit, and a control unit. The coverage rate finder finds the coverage rate of the image. The developing unit holds developer in it and includes a stirr...
03/09/2010
7630660Intelligent toner charging system and method
A method and apparatus for charging toner for an imaging device includes an inactivity determining section that determines one or more periods of inactivity of the printing machine, a measuring section that measures a charge of the toner, and a charging section that...
12/08/2009
7587150Image forming apparatus including plural developers and image forming method
An image forming apparatus which includes: a plurality of developers each of which stores therein a toner of the same color and includes a toner carrier structured to rotate while carrying the toner on its surface; and a controller which executes an image forming op...
09/08/2009
7567764Developing device having thickness regulating member and image forming apparatus
An developing device in which a developing roller develops an electrostatic latent image on a photo conductor; a developing roller driving unit rotates the developing roller in a forward direction and in a backward direction respectively while development is perform...
07/28/2009
7551867Image forming apparatus including controller driving image carriers
An image forming apparatus of the present invention includes image carriers arranged side by side in a preselected direction, developing means each for forming a toner image on one of the image carriers, a drive mechanism for driving in the preselected direction a m...
06/23/2009
7457556Image forming apparatus forming images using light and dark toners and control method thereof
An image forming apparatus performing development using light toner of a first color and dark toner of the first color includes a control unit configured to control tone in order to set gradation characteristics of an image developed with the light toner; a determin...
11/25/2008
7421223Printing system
In an implementation of a printing system, an electrophotographic imaging plate electrostatically attracts a first concentration of an ink having a particular color. A developer unit is biased with a developer voltage and the first concentration of the ink is transf...
09/02/2008
7403736Image forming apparatus, image forming system, and image forming method
An image forming apparatus includes a turnable image bearing body for bearing a latent image; a turnable developer bearing body for bearing liquid developer, the developer bearing body and the image bearing body being pressed in contact with each other at a predeter...
07/22/2008
7403726Image forming apparatus
An image forming apparatus includes a first image bearing member; a first charger for electrically charging the first image bearing member; a first developer carrying member for carrying a first color developer to develop an electrostatic image formed on the first i...
07/22/2008
7398026Method and apparatus for controlling an 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 ...
07/08/2008
7386259Image forming apparatus including controller driving image carriers
An image forming apparatus of the present invention includes image carriers arranged side by side in a preselected direction, developing mechanisms configured to form a toner image on one of the image carriers, a drive mechanism for driving in the preselected direct...
06/10/2008
7369783Image forming apparatus, process cartridge, and development unit
An image forming apparatus includes a plurality of developing devices, each of which stores a toner, a developing device installation section, in which the developing device is detachably installed, a color display unit that displays a toner color corresponding to t...
05/06/2008
7366446Image forming apparatus and method with variable photosensitive drum to developing roller speed ratio
An image forming apparatus includes a photosensitive drum, a developing roller, a photosensitive drum driving unit, a developing roller driving unit, and a driving control unit. An electrostatic latent image is formed on the photosensitive drum. The developing rolle...
04/29/2008
7356276High voltage generator and method of sensing roller resistance
Provided are a high voltage generator of an image forming apparatus, which simplifies a circuit structure and reduces the number of control signals by commonly using a roller resistance sensing circuit unit, and a method of sensing roller resistance. The high voltag...
04/08/2008
7356272Image forming apparatus with developing roller that rotates during standby to ensure toner uniformity
An electrostatic latent image associated with image data is formed on an image carrier. A developer includes a container containing toner a roller facing the image carrier and causing the toner to adhere onto the image carrier to develop the electrostatic image with...
04/08/2008
7352492Method for compensating for printer characteristics
What is disclosed is a method for compensating for printer characteristics having a tone reproduction curve which is either too rough to be fitted by interpolation or which does not have a simple parametric function. The method comprising first placing a first set o...
04/01/2008
7349653Developing apparatus and image forming method featuring colored and transparent toners
A developing apparatus includes a developing device for color receiving colored toner and a carrier and developing an electrostatic image; a developing device for transparence receiving transparent toner and a carrier and developing the electrostatic image; a develo...
03/25/2008
7343121Addition of liquid charge control agents to toner in toner development stations of electrographic reproduction apparatus
Controlling the charge on toner in a development station of an electrographic reproduction apparatus, wherein data relative to latent image charge carrying member voltage and image density control patches are sensed and development potential to achieve an aim densit...
03/11/2008
7343120Addition of liquid charge control agents to toner in toner development stations of electrographic reproduction apparatus
Controlling the charge on toner in a development station of an electrographic reproduction apparatus, wherein data relative to latent image charge carrying member voltage and image density control patches are sensed and development potential to achieve an aim densit...
03/11/2008
7332256Image forming method and image forming apparatus
An image forming method includes: forming an electrostatic latent image after charging an organic photoconductor; and developing the electrostatic latent image into a toner image by bringing a developer containing toner and a carrier having a weight average particle...
02/19/2008
7324768Method and device for determining one or more operating points in an image forming device
Methods and devices for setting an operating point within an image forming device. The operating point for one or more image forming stations may be determined without performing a toner patch sensing procedure. The operating points are determined based on other inf...
01/29/2008
7324240Color correction method with transparent toner insignia images
A method for color correction of an image having an insignia portion in a multi-module printer (10). A first color profile is calibrated for a four-color image. A second color profile is calibrated for a four-color image with a transparent toner layer on top ...
01/29/2008
7319826Method of optimizing amount of toner of electrophotographic printer
A method of optimizing the amount of toner of an electrophotographic printer is provided. The method includes measuring a life span of the development roller in use. The speed of a development roller, which corresponds to the measured life span of the development ro...
01/15/2008
7317889Image forming apparatus wherein a speed of a developed carrying member is controlled relative to a speed of an image bearing member
An image forming apparatus includes a rotatable image bearing member bearing an electrostatic image; a rotatable developer carrying member carrying a developer to develop the electrostatic image; speed controlling means for switching a rotating speed of the image be...
01/08/2008
7307754Density control method for image control apparatuses and image forming apparatus capable of executing the method
There is provided an image forming apparatus which is capable of quickly performing measurements required for obtaining a proper image density. The image forming apparatus having a plurality of image forming apparatuses performs an image density adjustment control p...
12/11/2007
7305195Image 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
7298984Image forming apparatus and developer control method
An image forming apparatus includes a developer that develops a latent image to form an image, a separation unit that separates image information of a job image by color upon writing a latent image of the job image, a comparison unit that compares the image informat...
11/20/2007
7292800Image forming apparatus with selectively rotated developing roller
An image forming apparatus includes an image carrier formed with a latent image A developing device has a developing roller driven by a stepping motor. A rotary development apparatus supports the developing device on a rotating shaft to rotate to a developing positi...
11/06/2007
7289742Printing apparatus with removable image forming section and position error processing of image forming section installation position
What is disclosed is a printer comprising a mechanism mounting section which is able to attach plural image forming sections; a color information obtaining section to obtain color information informing kind of coloring material contained in each of said plural image...
10/30/2007
7286778Feed forward mitigation of development transients
A development system for an electrophotographic system including: a magnetic brush roll speed selector for selecting a rotational speed for a magnetic brush roll in a development system of the electrophotographic system; and a controller, responsive to the rotationa...
10/23/2007
7283775Developing device using specific charging unit for charging toner and image forming device adopting the same
A developing device prevents deterioration of toner, i.e., prevent the toner from being damaged, or fused onto the blade, to realize a more reliable developing operation. In the developing device, an electron emitting section is provided onto the toner regulation bl...
10/16/2007
7283761Developing apparatus and image forming apparatus, and storage apparatus
The developing apparatus which develops a latent image formed on an photosensitive drum by a toner is provided with a developing roller which bears the toner, and an RS roller abutting against to this developing roller so as to perform the removal and supply of the ...
10/16/2007
1              
 
Sign InRegister
Username  
Password   
forgot password?