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Class Information
Number: 399/298
Name: Electrophotography > Image formation > Transfer > Color
Description: Subject matter wherein an arrangement is provided for either sequentially or simultaneously transferring a developed image having two or more different colors from one surface to another.

Sub-classes under this class:

Class Number Class Name Patents
399/302 By intermediate transfer member 1,188
399/303 Copy medium carrier (e.g., drum or belt) 431
399/300 From multiple positions 63
399/299 From plural photoconductive members (e.g., drums) 425
399/301 Registration 626

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8681374 Image forming apparatus and auto color registration method thereof Mar. 25, 2014
8626040 Image forming apparatus Jan. 7, 2014
8526866 Image forming device Sep. 3, 2013
8379067 Image forming apparatus and control method thereof Feb. 19, 2013
8335026 Image forming apparatus and color shift correction method thereof Dec. 18, 2012
8290384 Image forming device Oct. 16, 2012
8284458 Image processing apparatus and method for managing documents with output-prohibit area Oct. 9, 2012
8260179 Image forming apparatus including first and second image forming devices and first and second belt units Sep. 4, 2012
8223390 Systems and methods for reducing color registration errors in tandem engines Jul. 17, 2012
8200133 Image forming apparatus Jun. 12, 2012
8169657 Registration method using sensed image marks and digital realignment May. 1, 2012
8149456 Color processing method and image forming apparatus for creating a color separation table Apr. 3, 2012
8103200 Image forming apparatus Jan. 24, 2012
8090303 Image forming apparatus Jan. 3, 2012
8081912 Image forming apparatus with marginless printing mode Dec. 20, 2011
8078071 Image forming apparatus and control method of the image forming apparatus Dec. 13, 2011
8045873 Image forming apparatus and image density adjusting method Oct. 25, 2011
8040365 Image forming apparatus and control method thereof Oct. 18, 2011
8010004 Belt transfer device Aug. 30, 2011
8005391 Methods for determining when to transition between color printing and black-only printing in an image forming device Aug. 23, 2011
8000617 Image forming apparatus having toner containers of varying sizes Aug. 16, 2011
7937016 Transfer device and image forming apparatus including the same May. 3, 2011
7929877 Transfer device and image forming apparatus having at least two contacting members applied with corresponding transfer biases Apr. 19, 2011
7923183 Image forming apparatus and image forming method Apr. 12, 2011
7869750 Image forming apparatus with a phase of a first load torque substantially opposite to a phase of a second load torque Jan. 11, 2011
7837320 Liquid droplet ejection apparatus Nov. 23, 2010
7826755 Image forming apparatus and drive control method of the same Nov. 2, 2010
7773925 Image forming apparatus Aug. 10, 2010
7756454 Hybrid single pass, multi-pass full color printing system Jul. 13, 2010
7751756 Color image forming method and color image forming apparatus Jul. 6, 2010
7734225 Tri-level tandem xerographic architecture using reduced strength toner Jun. 8, 2010
7706731 Hybrid printing system Apr. 27, 2010
7643186 Image forming device, method for adjusting toner concentration, programs, and recording media of the same Jan. 5, 2010
7623814 Single-pass bypass printing method and apparatus Nov. 24, 2009
7613418 Image forming apparatus Nov. 3, 2009
7583919 Color image forming apparatus capable of effectively matching registration between elementary color images Sep. 1, 2009
7561839 Image forming apparatus and image forming method Jul. 14, 2009
7548716 Color gamut and enhanced transfer using hybrid architecture design Jun. 16, 2009
7509077 Method and printing machine used for printing with the use of toner Mar. 24, 2009
7463855 Color image forming apparatus and image forming method Dec. 9, 2008
7436417 Color image forming apparatus, and toner replenishing apparatus Oct. 14, 2008
7430389 Image forming apparatus with transparent toner developer Sep. 30, 2008
7423783 Color image scanning and printing device with efficient conversion of scanned image data into print image data Sep. 9, 2008
RE40435 Modular copying system using light wave, electric wave, or sonic wave interconnections Jul. 15, 2008
7386262 Belt driving control apparatus and image forming apparatus which uses a moving average process and a revolution average process Jun. 10, 2008
7375853 Image processing apparatus and method May. 20, 2008
7313343 Image forming apparatus Dec. 25, 2007
7292812 Image forming apparatus Nov. 6, 2007
7274900 Color image forming apparatus and image forming method Sep. 25, 2007
7177571 Image forming apparatus using a belt-like intermediate transfer member Feb. 13, 2007

1 2 3 4

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