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Browse by Category: Main > Electrical & Energy
Class Information
Number: 399/129
Name: Electrophotography > Supplemental electrophotographic process > Exposure or charging (e.g., fatigue treatment) > Of residual toner
Description: Subject matter wherein the charging or exposure is of untransferred toner to be removed.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8693904 Image forming apparatus Apr. 8, 2014
8611793 Electrical reconditioning for printer photoreceptor Dec. 17, 2013
8606148 Reconditioning rotatable photoreceptor in electrophotographic printer Dec. 10, 2013
8577248 Image forming apparatus Nov. 5, 2013
8532531 Image forming apparatus comprising a charging unit including plural conductive fibers Sep. 10, 2013
8526855 Image forming apparatus and image forming method Sep. 3, 2013
8346110 Image forming apparatus Jan. 1, 2013
8315541 Image forming apparatus using cleaner-less system Nov. 20, 2012
8290385 Image forming apparatus for transferring transfer residual toner onto image bearing member Oct. 16, 2012
8238782 Image forming apparatus having a charge member disposed near an image bearing member Aug. 7, 2012
8180247 Image forming apparatus for transferring transfer residual toner onto image bearing member May. 15, 2012
8131178 Image forming system cleaning station with waste toner collection Mar. 6, 2012
8036573 Process cartridge and image forming apparatus including a toner charge control device with an endless belt Oct. 11, 2011
8027612 Image forming apparatus having a charge member disposed near an image bearing member Sep. 27, 2011
8027617 Image forming apparatus Sep. 27, 2011
8019249 Charging device, image forming apparatus and method of charging image carrier of image forming apparatus Sep. 13, 2011
7978998 Image forming apparatus for transferring transfer residual toner onto image bearing member Jul. 12, 2011
7945190 Cleanerless image forming apparatus May. 17, 2011
7945191 Image forming apparatus having external-additive removal unit that includes a conductive blade May. 17, 2011
7941075 Image forming apparatus including a cleaner-less image carrier cleaning system May. 10, 2011
7907871 Image forming apparatus Mar. 15, 2011
7903999 Image forming apparatus Mar. 8, 2011
7903998 Image forming apparatus Mar. 8, 2011
7873298 Cleaning device, process cartridge, and image forming apparatus Jan. 18, 2011
7805089 Image forming apparatus Sep. 28, 2010
7796907 Method and apparatus for detecting and avoiding a defect on a fuser web Sep. 14, 2010
7796919 Image forming apparatus capable of preventing worsening of image quality caused by excessively charged developer Sep. 14, 2010
7792462 Image formation apparatus with toner retention member Sep. 7, 2010
7778573 Image forming apparatus and process cartridge Aug. 17, 2010
7761034 Image forming apparatus with cleaning means and image forming method using the same Jul. 20, 2010
7756446 Image forming apparatus Jul. 13, 2010
7684732 Process unit and image forming apparatus including the same Mar. 23, 2010
7664430 Image forming apparatus with a holding amount adjusting unit Feb. 16, 2010
7657197 Image forming apparatus employing a cleaner-less system Feb. 2, 2010
7627269 Image forming apparatus with charging member cleaning capabilities Dec. 1, 2009
7593669 Image forming apparatus Sep. 22, 2009
7469116 Image forming apparatus Dec. 23, 2008
7324776 Image forming apparatus, charge controlling apparatus, and image forming method Jan. 29, 2008
7319835 Image forming device having first and second light providing units Jan. 15, 2008
7313337 Method and apparatus for sensing and controlling residual mass on customer images Dec. 25, 2007
7286788 Image forming apparatus Oct. 23, 2007
7236711 Full-width array sensing of two-dimensional residual mass structure to enable mitigation of specific defects Jun. 26, 2007
7218879 Image forming apparatus controlling polarity of residual toner and process cartridge for use in the same May. 15, 2007
7146123 Image forming apparatus Dec. 5, 2006
7130564 Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming Oct. 31, 2006
7110699 Image forming apparatus and process cartridge for use in the same Sep. 19, 2006
7058338 Image forming apparatus with reciprocating dispersing feature Jun. 6, 2006
7031641 Image-forming apparatus having pre-charge exposure device for image carrier Apr. 18, 2006
6996356 Image forming apparatus using system for cleaning image bearing member Feb. 7, 2006
6996355 Image formation apparatus having charging means and developing agent charging means Feb. 7, 2006

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