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Browse by Category: Main > Electrical & Energy
Class Information
Number: 399/253
Name: Electrophotography > Image formation > Development > Dry development > Conditioning of toner
Description: Subject matter wherein an arrangement is provided for treating impurities or unwanted effects and properties of dry developer material.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8620189 Developing device and image forming device avoiding excessive discharge of developer Dec. 31, 2013
8600250 Image forming unit and apparatus that performs stand-by charging of toner Dec. 3, 2013
8401431 Developing device, image forming apparatus, and image forming structure Mar. 19, 2013
8401432 Developing device and image forming apparatus Mar. 19, 2013
8326184 Development device and image forming apparatus Dec. 4, 2012
8260175 Developing apparatus and image forming apparatus using same Sep. 4, 2012
8218199 Image forming apparatus capable of improving an image quality of a barcode while suppressing deterioration in a quality of an image Jul. 10, 2012
8145080 Image forming apparatus Mar. 27, 2012
8139985 Developing apparatus and image forming apparatus using same Mar. 20, 2012
8132451 Characterization tools for toner adhesion and adhesion distribution Mar. 13, 2012
7991314 In situ electrophotographic printer toner charge measurement Aug. 2, 2011
7974548 Developing device and image forming apparatus including same Jul. 5, 2011
7968267 Method for developing an electrostatic latent image Jun. 28, 2011
7957677 Developing device and image forming apparatus using the same Jun. 7, 2011
7941073 Toner cartridge May. 10, 2011
7925187 Development device, image forming apparatus and development method Apr. 12, 2011
7925186 Developing device and image-forming apparatus Apr. 12, 2011
7894731 Method by which an infinite number of colors may be used with a finite number of CCUs Feb. 22, 2011
7761040 Image forming apparatus having developer with opposite polarity particles Jul. 20, 2010
7747181 Image forming apparatus and detachable developer container with wireless communication therebetween Jun. 29, 2010
7736827 Developer recycling method Jun. 15, 2010
7738814 Development apparatus, image-forming apparatus and developing method using reverse polarity particles Jun. 15, 2010
7734206 Image forming apparatus Jun. 8, 2010
7734227 Developing device and image-forming apparatus using multiple-component developer Jun. 8, 2010
7706726 Apparatus and process to reclaim toner from a toner/carrier mixture Apr. 27, 2010
7672620 Developer purification station or structure Mar. 2, 2010
7650100 Development apparatus, image forming apparatus, and developer transfer method Jan. 19, 2010
7627272 Developer transport device, developing device, visible image forming device and image forming apparatus Dec. 1, 2009
7555246 Development sub-system in-line cleaning system Jun. 30, 2009
7493067 Toner and developer purification system Feb. 17, 2009
7428398 Development sub-system in-line cleaning system Sep. 23, 2008
7391997 Developer apparatus and image forming apparatus having an auxiliary collecting member provided in a gap between feed blades Jun. 24, 2008
7379679 Image forming apparatus and method with plural developers each storing toner of the same color May. 27, 2008
7343120 Addition of liquid charge control agents to toner in toner development stations of electrographic reproduction apparatus Mar. 11, 2008
7343121 Addition of liquid charge control agents to toner in toner development stations of electrographic reproduction apparatus Mar. 11, 2008
7250240 Toner, developer, container containing toner, process, cartridge, image forming apparatus and process Jul. 31, 2007
7224930 Image forming apparatus May. 29, 2007
7219805 Sieve screen level sensor May. 22, 2007
7010249 Toner agitating device and toner conveying device for an image forming apparatus Mar. 7, 2006
7006778 Detoning apparatus and method Feb. 28, 2006
7003234 Apparatus and method for forming image including controlling supply of new and recycled toner Feb. 21, 2006
6963704 Heating system for a developer housing Nov. 8, 2005
6961530 Recovered toner classifier capable of effectively removing foreign substance and crushing aggregation of toner Nov. 1, 2005
6941089 Heating system for a developer housing Sep. 6, 2005
6829461 Recovered toner classifier capable of effectively removing foreign substance and crushing aggregation of toner Dec. 7, 2004
6674985 Image forming apparatus Jan. 6, 2004
6631250 Developer filtration module Oct. 7, 2003
6615013 Powder classifying device and image forming apparatus having the powder classifying device Sep. 2, 2003
6600892 Developing device, charging method used therefor, and printing apparatus having the developing device Jul. 29, 2003
6580890 Clear toner for conditioning of development systems Jun. 17, 2003

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