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7619791 |
Image forming method and image forming device
A reference developing image is formed on a photoreceptor drum under an image forming condition measured in advance, and the density of this reference developing image is detected. A development...
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7613409 |
Image forming apparatus
A delaying section for obtaining from an image processing section a printing rate of image data used for forming a toner image, and delaying in accordance with the obtained printing rate a start...
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7606505 |
Image forming method and apparatus capable of effectively performing charging operation
An image forming apparatus includes image forming units, a toner supply device, a common-unit detection device, an initial operation execution device, and a determination device. Each image forming...
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7558496 |
Image forming device
A developer agitation screw is provided with a blade to gather developer onto the sensor surface of a toner concentration sensor. A toner concentration control unit detects the maximum value of the...
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7551862 |
Developing device, and process unit and image forming apparatus using the developing device
A developing device including a developer bearing member configured to configured to bear thereon a developer including a toner and a magnetic carrier to develop an electrostatic image on an image...
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7539427 |
Print quality maintenance method and system
An system and related method for maintaining print quality based on development potential measurements that include comparing the current process measurements to a toner concentration related...
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7536127 |
Developing device adjustment method
A method for adjusting a developing device including a magnetic roll for holding a two-component developer composed of a carrier and toner filled in a developing tank in a brush state, and a...
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7532833 |
Printing apparatus, printing system, and prediction method of usage of printing agent
A printing apparatus, a printing system, and a prediction method of the usage of a printing agent can be configured to predict, prior to a processing for developing a printing image, the usage of a...
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7496305 |
Method and apparatus for image forming capable of effectively correcting output from toner density sensor
An image forming apparatus using a two-component developer includes a sensor mechanism, an image forming mechanism, a toner supply controller, a memory, an estimation mechanism, and a correction...
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7493058 |
Image forming apparatus and toner concentration controlling method
The image forming apparatus includes a developing device that holds a two-component developer to develop an image, a detecting unit that outputs a reference output value and a second output value...
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7469117 |
Image forming apparatus, developing unit, and computer system
An image forming apparatus and a computer system having an efficient communication system are achieved. The image forming apparatus etc. is provided with an antenna that is capable of wirelessly...
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7450867 |
Image forming apparatus, toner density control method, toner density control program and storage medium for storing the program
An amount of toner consumption accompanying development of an image corresponding to the image data is calculated based on image data, and a corrected consumption amount is calculated by...
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7433613 |
Method and device for setting the toner concentration in the developer station of an electrophotographic printer or copier
In a method and system for setting toner concentration of a toner particle-carrier particle mixture in a developer station for development of a latent charge image on a carrier, a sensor is...
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7315704 |
Wet-type image forming apparatus, a toner concentration sensing method, and a method for controlling wet-type image forming apparatus
A wet-type image forming apparatus and method is provided to sense and maintain a toner concentration level of a developer, and includes a counter for counting the number of dots of input print...
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7251420 |
Method and apparatus for image forming capable of effectively detecting toner density
An image forming apparatus includes an image forming mechanism and a control device. The image forming mechanism performs an image forming operation under predetermined image forming conditions,...
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7228080 |
System for active toner concentration target adjustments and method to maintain development performance
A closed-loop toner concentration adjustment system extends xerographic process control performance with a system and method including a first controller to adjust toner concentration (TC) in a...
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7180532 |
Dry ink concentration monitor interface with automated temperature compensation algorithm
A system, method, and apparatus for adjusting dry ink concentration in a developing station ( 30 ) of a printer is disclosed. The adjustment is performed by calculating the thermal drift of a dry...
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7149437 |
Image forming apparatus, and control system, cartridge and memory medium for the same apparatus
The image forming apparatus onto which a cartridge having a developing apparatus and memory medium is detachably mountable, a detector for detecting toner concentration, and a control unit for...
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7092648 |
Method of controlling an amount of toner charging in an electrophotographic image forming apparatus and apparatus using the same
A method of controlling an amount of toner charging in an electrophotographic image forming apparatus using a two-component developing agent, and an apparatus using the method. The method includes...
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7054569 |
Wet electrophotographic image forming machine and method for recognizing a use life of a development cartridge used therein
A wet electrophotographic image forming machine that informs a user of a timing for replacing development cartridges. The image forming machine comprises a control section for sensing the condition...
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7050729 |
Image forming apparatus
An image forming apparatus includes a latent image forming portion for forming an electrostatic latent image corresponding to image information on an image bearing member, a developing portion,...
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7013096 |
Image forming apparatus with toner amount selection feature
An image forming apparatus includes an image bearing member on which a latent image corresponding to image information is formed, a developing device for developing the latent image on said image...
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7003236 |
Liquid development apparatus, liquid development method, and image forming apparatus and image forming method using liquid development
A liquid development apparatus utilizes wet development as a development method and an image forming technique. The apparatus uses squeegee rollers, disposed facing a developer roller, and moved to...
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6954597 |
Electrophotographic image-forming apparatus using two-component developer and print density control method thereof
An electrophotographic image-forming apparatus and method using a two-component developer comprises a charging roller for charging a surface of a photosensitive medium at a predetermined potential;...
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6947681 |
Image forming apparatus with two-speed developing operation and toner control feature
An image forming apparatus in which the control of toner supply can be effected well irrespective of an image forming mode (image forming speed). The density of a toner in a developer contained in...
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6917771 |
Duplex electro-photographic developing machine and method of controlling toner image concentration thereof
A duplex electro-photographic developing machine including a printing medium tray loading a printing medium, a tray open/closed detecting unit detecting whether the printing medium tray has been...
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6873805 |
Toner replenishment based on writer current
A method and apparatus for replenishing toner based on the electric current used over time by the exposure subsystem. Toner take-out for each image is estimated by measuring the current used by the...
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6819888 |
Liquid development apparatus and image formation apparatus
An attriter which applies a strong stress to a liquid developer, sufficient for generating the chemically non-equilibrium state therein, is parallel-connected with a developing unit, so that the...
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6819887 |
Apparatus and method for measuring concentration of developer in liquid printer
A developer concentration measuring apparatus of a liquid printer includes a container installed so that developer supplied to a photoreceptor web enters and is exhausted, a roller rotatably...
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6791590 |
Image formation method and apparatus
An image formation method for forming an image containing an embossed portion of an expandable material on a recording medium, comprising converting height information about an embossed image which...
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6718147 |
Toner measurement and darkness control using printer systems
Toner usage is measured with good accuracy. Printing tends to darken with the depletion of toner from a source. A toner cartridge employed in a printer ( 70 ) has the capability at the cartridge of...
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6708007 |
Image forming apparatus and image forming method
An image forming apparatus for controlling a toner supply includes a density detecting component for detecting a density of toner in a developer when forming an image, a toner supply component for...
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6694113 |
Ink delivery system and ink delivery method of liquid -type electrophotographic printer
The present invention provides an ink delivery system and an ink delivery method of a liquid-type electrophotographic printer which are adapted to detect whether or not liquid in any one of...
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6687477 |
Toner recycle control system of electrophotographing device using viscous liquid developing solution
The present invention provides a toner recycling control system which stably feeds a liquid developer of an appropriate concentration to a liquid developing apparatus employing a high-viscosity...
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6625404 |
Apparatus for controlling the amount of developer material and toner concentration
A developing apparatus is provided in which a developer material in a development tank is made to circulate through a developer material storage vessel detachably mounted on the development tank,...
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6603934 |
Method and apparatus for forming image
The present invention employs a thickness detecting mechanism including a system for emitting polarized light and a reception system for receiving reflected light and generating electric signals....
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6580882 |
Low cost trim-gap-conductivity TC sensor
A toner maintenance system for an electrophotographic developer unit, including a sump for storing a quantity of developer material comprised of carrier and toner material; a first member for...
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6580879 |
Method and system for managing replenishment of toners
A method and system for the determination of toner usage in proportion to image-feature density, with independent estimation of each color toner module consumption. The system accurately accounts...
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6542704 |
Device and method for constantly adjusting the concentration and filling level of developing solution in a printing process
A liquid developing device comprises a storage tank, a concentration sensor, a level sensor, a concentrated-ink supply pump, a carrier supply pump, an ink discharge pump, and a controller. The...
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6526236 |
Replenisher mechanism for a reproduction apparatus development station with continuous monitoring of remaining marking particle material
A mechanism for replenishing particulate material from receptacles to a reservoir, which provides a highly accurate and continuous indication of the amount of particulate material remaining in the...
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6510294 |
Image forming apparatus and its controlling method
The present invention is directed to an image forming apparatus and its control method, which apparatus having a laser pulse arithmetic circuit for counting a time period in which a laser pulse...
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6501918 |
Toner concentration controlling apparatus
A concentration controlling apparatus is provided for controlling the toner concentration of a developer contained in a developer unit. The developer contains a plurality of components including...
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6449441 |
Developer supplying apparatus
A developer supplying apparatus includes a developer container containing therein a developer provided with a toner and a carrier, a developer bearing member for magnetically bearing and carrying...
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6442355 |
Developer density controlling apparatus including target density information detection and toner image density detection
A developer density controlling apparatus includes image density detecting device for detecting a target density on the basis of a detected image and, if a difference between a toner density...
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6434346 |
Printing and photocopying device and method whereby one toner mark is scanned at at least two points of measurement
The invention relates to an electrographic printing or photocopying device and method. A toner mark ( 10 ) is provided on a photoconductive drum and printed with toner using a developing station....
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6389245 |
Developing device and image forming apparatus
A developing device includes a developer bearing member for bearing and conveying a developer having a toner and a carrier, a first magnetic pole arranged in the developer bearing member, a second...
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6389244 |
Toner density sensor, and ink jet head, developing unit and image forming apparatus in which toner density sensor is used
A toner density sensor, including a light emitting element and a light receiving element, detects toner density even for a liquid developer having a low transmission factor. The toner density...
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6381421 |
Image forming apparatus having improved developer filling capability
An image forming apparatus is provided with a plurality of developing units containing developer used for supplying the developer to an image bearer. The image forming apparatus also includes a...
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6341209 |
Method of controlling an ink agitator of a wet-type electrophotography printer
A method of controlling an ink agitator of a wet-type electrophotography printer. The method includes the steps of checking and determining the extent of the printer non-usage time during the...
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6332063 |
Image forming apparatus with residual toner detection and collection features
An image forming apparatus includes a plurality of image forming stations forming images of different colors on a transfer material and is provided along a direction of conveyance of the transfer...
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