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Class Information
Number: 399/55
Name: Electrophotography > Control of electrophotography process > Control of developing > Bias control
Description: Subject matter wherein voltage or current used to aid or influence development is controlled.










Sub-classes under this class:

Class Number Class Name Patents
399/56 In response to potential of latent image 66


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

Patent Number Title Of Patent Date Issued
8712263 Image forming apparatus Apr. 29, 2014
8693905 Systems and methods for reducing reload image quality defects Apr. 8, 2014
8682188 Image forming apparatus with developing units having different voltage levels Mar. 25, 2014
8682197 High voltage power supplying apparatus and image forming apparatus having the same Mar. 25, 2014
8676074 Method for providing ratio modulated printing with discharge area development Mar. 18, 2014
8676072 Ratio modulated printing with charge area development Mar. 18, 2014
8660471 Developer supply device and image forming apparatus having the same Feb. 25, 2014
8660448 Image forming apparatus and image forming method Feb. 25, 2014
8660447 Multi-pass image forming apparatus having voltage divider Feb. 25, 2014
8655210 Image forming apparatus with potential difference control Feb. 18, 2014
8655207 Image forming apparatus Feb. 18, 2014
8649048 Memory storing data of a toner cartridge is provided, and control of transfer, fixing or the like is performed based on the data Feb. 11, 2014
8639140 Image forming apparatus Jan. 28, 2014
8634734 Power supply circuit for supplying power to electronic device such as image forming apparatus Jan. 21, 2014
8626032 Image forming apparatus that sets a bias supplied to a developer carrying member Jan. 7, 2014
8626039 Image forming apparatus and method capable of obtaining high quality image suppressing edge effect Jan. 7, 2014
8626016 Image forming apparatus Jan. 7, 2014
8615176 Electrophotographic image forming apparatus using a periodic wave as a developing bias Dec. 24, 2013
8606128 Image forming apparatus and method of controlling image forming apparatus for more efficient printing Dec. 10, 2013
8600250 Image forming unit and apparatus that performs stand-by charging of toner Dec. 3, 2013
8600265 Image forming apparatus Dec. 3, 2013
8588635 Development device, process cartridge incorporating same, and image forming apparatus incorporating same Nov. 19, 2013
8577236 Reducing reload image quality defects Nov. 5, 2013
8571430 Wet-type image forming apparatus Oct. 29, 2013
8559853 Image forming apparatus with different pressing forces between image carriers and developer carriers Oct. 15, 2013
8554096 Power source and image forming apparatus Oct. 8, 2013
8543023 Electrophotographic color image forming apparatus Sep. 24, 2013
8478140 Image forming apparatus featuring a developer replenishing device Jul. 2, 2013
8478150 Image forming apparatus and method for controlling same Jul. 2, 2013
8467692 Image forming apparatus and image forming method Jun. 18, 2013
8457508 Developing bias setting in an image forming apparatus Jun. 4, 2013
8437650 Image forming apparatus May. 7, 2013
8433211 Developing device, process cartridge, and image forming apparatus Apr. 30, 2013
8417134 Electrophotographic color image forming apparatus Apr. 9, 2013
8412065 Image forming apparatus with developing roller cleaning capability Apr. 2, 2013
8406645 Image forming apparatus and image forming method for adjusting developing bias Mar. 26, 2013
8391737 Image forming apparatus Mar. 5, 2013
8369728 Image forming apparatus Feb. 5, 2013
8364046 Image forming apparatus and control parameter correcting method Jan. 29, 2013
8351826 Image forming method, image forming device, and image forming program Jan. 8, 2013
8346110 Image forming apparatus Jan. 1, 2013
8346109 Image forming apparatus with reset operation processing unit Jan. 1, 2013
8335445 Development apparatus and image forming apparatus Dec. 18, 2012
8326166 Image forming apparatus Dec. 4, 2012
8326165 Image forming apparatus having a photosenstive member of high capacitance Dec. 4, 2012
8311427 Image forming device and method Nov. 13, 2012
8311429 Image forming apparatus having development bias voltage generating circuit Nov. 13, 2012
8311428 Image forming apparatus with density correction function and density correction method Nov. 13, 2012
8301047 Image forming apparatus and method of controlling development electric field strength therein Oct. 30, 2012
8290408 Method and system for non-contact powder image development Oct. 16, 2012

1 2 3 4 5 6 7 8 9 10










 
 
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