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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 399/176
Name: Electrophotography > Image formation > Charging > Contact > Roller
Description: Subject matter wherein the contact charger is a rotatable cylinder.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8712291 Charging member, electrophotographic apparatus, and process cartridge Apr. 29, 2014
8705990 Identification of a first and second adjustment value based on a first and second electrical discharge event Apr. 22, 2014
8706006 Developing device and image forming apparatus including the same Apr. 22, 2014
8706007 Image forming apparatus Apr. 22, 2014
8688009 Delivery apparatus Apr. 1, 2014
8676089 Composition for use in an apparatus for delivery of a functional material to an image forming member Mar. 18, 2014
8668987 Electrophotographic electrically conductive member Mar. 11, 2014
8663748 Method of producing a conductive roller utilizing a semi-curing step Mar. 4, 2014
8649704 Bias charging overcoat Feb. 11, 2014
8622881 Conductive member, electrophotographic apparatus, and process cartridge Jan. 7, 2014
8620186 Image forming apparatus Dec. 31, 2013
8620187 Surface coatings for the bias charging roller Dec. 31, 2013
8620184 Image forming apparatus having a positively charged single layer type electrophotographic photoreceptor Dec. 31, 2013
8588667 Transfer NIP for an electrophotographic device, and methods of making and using same Nov. 19, 2013
8583011 Image forming apparatus having a positively charged single layer type electrophotographic photoreceptor Nov. 12, 2013
8577267 Transparent intermediate transfer members containing zinc oxide, polyarylsulfone, and polyetheramine Nov. 5, 2013
8571433 Roll supporting mechanism, image forming apparatus and assembly body Oct. 29, 2013
8565648 Charge element, process cartridge, and image forming apparatus Oct. 22, 2013
8559848 Charging member assembly usable with body to be charged and charging apparatus for image forming apparatus Oct. 15, 2013
8550969 Charging member, process cartridge, and electrophotographic apparatus Oct. 8, 2013
8548359 Charging member, process cartridge and electrophotographic apparatus Oct. 1, 2013
8538297 Charging apparatus using charging tube and image forming apparatus having the same Sep. 17, 2013
8538298 Charging member, process for its production, and electrophotographic apparatus Sep. 17, 2013
8532535 Charging member, manufacturing method for charging member, and electrophotographic apparatus Sep. 10, 2013
8532534 Charging member, process cartridge, and electrophotographic apparatus Sep. 10, 2013
8526857 Charging member, process for its production, process cartridge and electrophotographic apparatus Sep. 3, 2013
8523748 Charging member and process for its production Sep. 3, 2013
8509655 Image forming apparatus Aug. 13, 2013
8501325 Charging member, process cartridge, and electrophotographic apparatus Aug. 6, 2013
8503902 Electrophotographic printer with charging-roller cleaner Aug. 6, 2013
8503911 Charging member and method of producing the member, process cartridge, and electrophotographic image-forming apparatus Aug. 6, 2013
8494409 Process cartridge and image forming apparatus Jul. 23, 2013
8481167 Charging member Jul. 9, 2013
8478168 Charging roller for an imaging device Jul. 2, 2013
8469867 Charging member, process cartridge, and electrophotographic apparatus Jun. 25, 2013
8452212 Charging member, process unit cartridge, and image forming apparatus May. 28, 2013
8445113 Electro-conductive member for electrophotography, electrophotographic apparatus, and process cartridge May. 21, 2013
8447214 Charging member and process for its production May. 21, 2013
8437663 Charging member, process cartridge and image forming apparatus May. 7, 2013
8428488 Charging device, process cartridge, image forming apparatus, and toner Apr. 23, 2013
8412074 Charging roller for image forming apparatus and manufacturing method thereof Apr. 2, 2013
8412064 Image forming apparatus to control photosensitive member irradiation Apr. 2, 2013
8401425 Charging member, process cartridge, and electrophotographic apparatus Mar. 19, 2013
8391745 Cleaning body, cleaning device, charging device, assembly, and image forming device Mar. 5, 2013
8385780 Charging member, charging device including the charging member, process cartridge including the charging device and image forming apparatus including the process cartridge Feb. 26, 2013
8369740 Remanufactured toner cartridge with added cleaning roller for the primary charge roller, and methods Feb. 5, 2013
8346132 Image forming unit and image forming device Jan. 1, 2013
8301057 Roller separation cam with automatic engagement Oct. 30, 2012
8301058 Developing unit and image forming apparatus having the same Oct. 30, 2012
8285177 Charging device and image forming apparatus Oct. 9, 2012

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