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Class 399/46 - Of plural processes


Subclass of Class 399 - Electrophotography
Definition: Subject matter wherein a means or method is provided for
No. of patents: 238
Last issue date: 01/17/2012


1            
NumberTitleIssue Date
8099004Image forming apparatus and image forming apparatus control method
An image forming apparatus includes a first image carrier that carries a first latent image. A first charging section charges the first image carrier. A first exposure section exposes the first image carrier charged by the first charging section. A first developing ...
01/17/2012
7949269Image forming apparatus
An image forming apparatus includes a black image forming unit that can be used in a black monochrome mode to form supply toner images corresponding to color patches and cause the supply toner images to be carried by an intermediate transfer belt. During the black m...
05/24/2011
7822351Filling-rate lowering and rolling rate adjusting image forming apparatus
An image forming apparatus includes a toner-layer filling-rate lowering unit that causes a toner layer of toner images to be formed on an image carrier so that the toner layer has sufficient optical transparency for exposing and the toner-layer filling rate is set r...
10/26/2010
7725046Image forming apparatus with ion generator
Ions generated by the ion generating section are discharged from a paper sheet conveyer belt nozzle and an intermediate transfer belt nozzle, so that (i) a toner image transferred from a photosensitive drum onto an intermediate transfer belt and having yet to be tra...
05/25/2010
7587148Image formation apparatus, an image formation method, an image formation program, and a recording medium
An image formation apparatus, an image formation method, an image formation program, and a recording medium are disclosed. The image formation apparatus includes a first driving source for driving a feed roller and a fixing unit, a second driving source for driving ...
09/08/2009
7379681Image forming apparatus and control method thereof
Image forming apparatus in which surface electric potentials of a plurality of surface areas are detected by charging a photoconductor with a different applied bias for each predetermined timing and exposing a plurality of surface areas of the photoconductor by scan...
05/27/2008
7366438Image forming apparatus which can optimize cleaning time of transfer member contacting inter-image area of image bearing member
An image forming apparatus includes an image bearing member; a toner image forming section for forming toner images on the image bearing member, whereby the toner image forming section forms a detection patch on the image bearing member; a transfer member for contac...
04/29/2008
7348946Energy sensing light emitting diode display
A display that includes energy sensors within the display itself is disclosed. An Organic Light Emitting Diode (OLED) can be made to operate both as a light emitter and as an energy detector. When forward biased with an appropriate driving signal, the OLED emits lig...
03/25/2008
7343109Electrophotographic printer having developer and transfer bias control
An image forming apparatus including: a developing device that develops an electrostatic latent image formed on an image bearing body into a visible image by using a charged developer, so as to form a developer image on the image bearing body; a developing-bias supp...
03/11/2008
7340190Image forming apparatus
In an image forming apparatus, an image forming condition is changed depending on whether or not a recording material on which a toner image is formed is ordinary high gloss paper or thermoplastic resin coated paper. More specifically, in the case where a high gloss...
03/04/2008
7336910Image forming apparatus with gamma conversion means
The invention provides an image forming apparatus and an image forming method, capable of providing an image with little deterioration, even in case the image contrast has to be adjusted not for the purpose of image adjustment, such as for reducing the toner consump...
02/26/2008
7324766Cross-process charge uniformity scanner
In a xerographic printing apparatus, feedback on surface charge at a plurality of locations across a length of a photoreceptor may be desirable to assess charge uniformity, for example, to ensure color consistency across multiple marking engines in tightly integrate...
01/29/2008
7324765Image forming apparatus
In an image forming apparatus, an image forming condition is changed depending on whether or not a recording material on which a toner image is formed is ordinary high gloss paper or thermoplastic resin coated paper. More specifically, in the case where a high gloss...
01/29/2008
7319842Pivotal sheet conveying apparatus for skew correction and image forming apparatus
To provide a sheet conveying apparatus capable of enhancing an accuracy of correcting a skew of a sheet, and of preventing position shift of a sheet. The present invention provides a sheet conveying apparatus for conveying a sheet by a sheet conveying unit disposed ...
01/15/2008
7312890Printing 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
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
7292798Image-forming device that sets image-forming conditions
A control section sets the transfer bias level applied between a transfer roller and a photosensitive drum in the printer to a “ghost generation level.” The control section forms a test pattern on the recording medium by applying a transfer bias set to the ghost...
11/06/2007
7288058Semi-conductive roll
A semi-conductive roll is provided including a shaft, a low-hardness base layer formed on an outer circumferential surface of the shaft, and a coating layer formed by coating the low-hardness base layer radially outwardly. The coating layer includes one of a rubber ...
10/30/2007
7289133Method and apparatus for toner identification
A simple and economical method and apparatus for identifying the toner installed in a multi-toner printer by identifying the toner holder installed in the printer is disclosed. Additionally, the multi-toner printer is controlled based on the toner holder installed a...
10/30/2007
7287698Automatic cleanup of machine readable codes during image processing
A method and apparatus for automatically scanning and/or rewriting a machine readable code (MRC) of a document are described herein. In one embodiment, the method includes capturing an original machine-readable code (MRC) at a location of a document and generating a...
10/30/2007
7283777System and method for characterizing fuser stripping performance
Disclosed herein are several embodiments to facilitate the characterization of fuser stripping performance. Recognizing that the characteristics of a substrate exiting a fusing nip are indicative of the operation of the nip and the stripping operation itself, severa...
10/16/2007
7273688Image forming method and image forming apparatus for same
An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone granularity of the toner image after developing but before electrostatic tran...
09/25/2007
7259885Image forming apparatus with gamma conversion means
The invention provides an image forming apparatus and an image forming method, capable of providing an image with little deterioration, even in case the image contrast has to be adjusted not for the purpose of image adjustment, such as for reducing the toner consump...
08/21/2007
7254349Image forming apparatus having means to control condition of current supply to discharge wire and grid of charging member
An image forming apparatus is provided with an image bearing member, a charging member with a discharge wire and a grid, and a first current supply controlling member, which controls a current supply to the discharge wire. Also provided are a second current supply c...
08/07/2007
7251422Image 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
7245313Image forming device
An image forming device includes a main frame of the image forming device having a body, a drum shaft which is positioned and supported by the body of the main frame of the image forming device, a photoconductive drum which is provided removably in the main frame of...
07/17/2007
7245842Image 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
7233755Image forming apparatus
An image forming apparatus which reduces abrasion of a photosensitive drum caused by a rotary brush such as an charging brush for electrically charging the surface of a photosensitive drum or a cleaning brush for cleaning the surface of a photosensitive drum. The ro...
06/19/2007
7218879Image forming apparatus controlling polarity of residual toner and process cartridge for use in the same
An image forming apparatus includes an image carrier, a charging device configured to uniformly charge a surface of the image carrier with a charging member applied with a bias of a first polarity (e.g. a negative polarity) for charging. A latent image forming devic...
05/15/2007
7212226Image density control apparatus and image formation apparatus
An image forming apparatus includes a memory which stores test pattern data. The test pattern data are configured for detecting a density of image data formed on a photo conductor. The image forming apparatus includes a laser unit which forms a plurality of test pat...
05/01/2007
7202551Display device having underlying insulating film and insulating films
A resin material having low dielectric constant is used as an inter-layer insulating film and its bottom surface is contacted with a silicon oxide film across the whole surface thereof. Thereby, the surface may be flattened and capacity produced between a thin film ...
04/10/2007
7187879Image forming apparatus
At power-on, an image forming apparatus is in a state after it is leftstanding for some time in many cases, so that an image characteristic is largely different from that when γLUT correction table is prepared by an immediately before correction and is close to tha...
03/06/2007
7184675Fixing temperature control method and image forming apparatus with detection of thickness of a print medium
In an image forming apparatus which has a medium thickness detecting unit for detecting a thickness of print medium and forms an image by an electrophotographic process, the apparatus has a unit for detecting the thickness of print medium that is used after a predet...
02/27/2007
7164868Image forming apparatus with changeable image forming conditions due to changes in a surface layer thickness of an image bearing member
An image forming apparatus includes an image bearing member having a surface layer; an electrostatic image forming device for forming an electrostatic image on the surface layer; a developing device, containing at least toner and a carrier, for developing the electr...
01/16/2007
7162169Control system and method for mitigating transients in a machine due to occasional maintenance or service
A control system and method of predicting how a machine will respond to occasional or periodic service, and adjusting the machine accordingly to account for the change in machine behavior due to the service, mitigates transients in machine performance. A prediction ...
01/09/2007
7151901Image forming apparatus and associated method of detecting developer deterioration
An image forming apparatus including a latent carrier and a charging device. The charging device is configured to charge a surface of the latent carrier. An exposure device is configured to expose a surface of the latent carrier for forming a latent image thereon. A...
12/19/2006
7127187Tone reproduction curve and developed mass per unit area control method and system
A method of controlling the solid developed mass per unit area and the tone reproduction curve in a printing machine by reading data from a sensor, comparing the data to an acceptable range of data values, where the data is not within the acceptable range of data va...
10/24/2006
7125638Image forming method and image forming apparatus for same
An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone granularity of the toner image after developing but before electrostatic tran...
10/24/2006
7123850Control system and method for mitigating transients in a machine due to occasional maintenance or service
The exemplary embodiments are directed to a control system and method of predicting how a machine will respond to occasional or periodic maintenance or service, and adjusting the machine accordingly to account for the change in machine behavior due to the maintenanc...
10/17/2006
7123251Image display device
The present invention aims at acquiring a display device with no brightness irregularities of display. A plurality of drain signal lines are formed in parallel on a pixel-forming-side surface of a substrate. With respect to the respective drain signal lines, a plura...
10/17/2006
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