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Class Information
Number: 399/223
Name: Electrophotography > Image formation > Development > Plural diverse (e.g., color)
Description: Subject matter wherein more than one color of developer material is provided for developing one or more latent images.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616917 |
Multiple-channeled layer printing by electrography |
Nov. 10, 2009 |
| 7610000 |
Developing device driver and an image forming apparatus using the same |
Oct. 27, 2009 |
| 7603064 |
Unit for tone-processing image data using screen pattern with different screen angles for toners of same hue and different density |
Oct. 13, 2009 |
| 7596345 |
Image forming apparatus with a developer comprising at least a toner and a first external additive |
Sep. 29, 2009 |
| 7592115 |
Carrier for electrostatic latent image developer, production method thereof, electrostatic latent image developer, and image-forming device |
Sep. 22, 2009 |
| 7567772 |
Color printer apparatus |
Jul. 28, 2009 |
| 7558512 |
Toner cartridge and electrophotographic printer employing the same |
Jul. 7, 2009 |
| 7558509 |
Image forming apparatus |
Jul. 7, 2009 |
| 7558516 |
Image forming apparatus wherein a carrier weight ratio in a first supply container and carrier weight ratio in a second supply container are substantially equal to each other |
Jul. 7, 2009 |
| 7555245 |
Image forming apparatus with cam members |
Jun. 30, 2009 |
| 7555244 |
Image forming apparatus with a latent image writing unit positioned and biased against positioning errors |
Jun. 30, 2009 |
| 7551867 |
Image forming apparatus including controller driving image carriers |
Jun. 23, 2009 |
| 7522864 |
Image forming apparatus and image forming method |
Apr. 21, 2009 |
| 7509077 |
Method and printing machine used for printing with the use of toner |
Mar. 24, 2009 |
| 7499066 |
Image forming apparatus with improved capability of image superposition |
Mar. 3, 2009 |
| 7489890 |
Color image forming apparatus with differing toner time constants |
Feb. 10, 2009 |
| 7463847 |
Image-forming apparatus having developing units in removable holding unit |
Dec. 9, 2008 |
| 7460817 |
Image forming apparatus |
Dec. 2, 2008 |
| 7450888 |
Image forming apparatus and method of detecting home position error by sensing an indicating unit |
Nov. 11, 2008 |
| 7450889 |
Image forming apparatus including developing units each having an agitation member |
Nov. 11, 2008 |
| 7447459 |
Image formation device which operates in a plurality of startup modes |
Nov. 4, 2008 |
| 7430389 |
Image forming apparatus with transparent toner developer |
Sep. 30, 2008 |
| 7421231 |
Image forming apparatus |
Sep. 2, 2008 |
| 7416826 |
Color toner for electrophotography and color toner set for electrophotography using the same, color developer for electrophotography, method for forming color image, and apparatus for form |
Aug. 26, 2008 |
| 7398036 |
Image forming apparatus and image forming method |
Jul. 8, 2008 |
| 7386259 |
Image forming apparatus including controller driving image carriers |
Jun. 10, 2008 |
| 7375853 |
Image processing apparatus and method |
May. 20, 2008 |
| 7376373 |
Image forming apparatus having a power transmitting device to selectively operate developing units thereof |
May. 20, 2008 |
| 7356283 |
Tandem type image-forming apparatus |
Apr. 8, 2008 |
| 7349655 |
Developing device and method of forming images |
Mar. 25, 2008 |
| 7349653 |
Developing apparatus and image forming method featuring colored and transparent toners |
Mar. 25, 2008 |
| 7340204 |
Color image forming apparatus and process cartridge therefor |
Mar. 4, 2008 |
| 7321741 |
Image forming apparatus featuring a transparent image forming station to achieve uniform gloss |
Jan. 22, 2008 |
| 7315712 |
Electrophotographic image recording apparatus and method therefore |
Jan. 1, 2008 |
| 7310483 |
Image-forming apparatus and image-forming method for making development using light toner and dark toner with substantially the same hue |
Dec. 18, 2007 |
| 7310484 |
Apparatus for forming visible black and white or color images and invisible images |
Dec. 18, 2007 |
| 7302196 |
Image forming apparatus, developer tank, and method of identifying developer tank |
Nov. 27, 2007 |
| 7298984 |
Image forming apparatus and developer control method |
Nov. 20, 2007 |
| 7277649 |
Developing apparatus and image forming method |
Oct. 2, 2007 |
| 7239830 |
Color image forming system and method of forming color image using the system |
Jul. 3, 2007 |
| 7236725 |
Image formation device enabling switching between color printing mode and monochrome printing mode |
Jun. 26, 2007 |
| 7200350 |
Image forming apparatus switching developing rollers of mounted process cartridges between contact and spaced states and switching the contact position of a feeding belt contactable to drums o |
Apr. 3, 2007 |
| 7197265 |
Color image forming devices for use in color printers |
Mar. 27, 2007 |
| 7194223 |
Tandem type image forming apparatus |
Mar. 20, 2007 |
| 7177574 |
Image forming apparatus and developing gap adjusting method in image forming apparatus |
Feb. 13, 2007 |
| 7167669 |
Image forming apparatus |
Jan. 23, 2007 |
| 7123862 |
Image forming apparatus |
Oct. 17, 2006 |
| 7120377 |
Color image forming system and method of forming color image using the system |
Oct. 10, 2006 |
| 7120368 |
Image forming apparatus using two or more toners for ordinary paper or OHP sheet |
Oct. 10, 2006 |
| 7113729 |
Image forming apparatus capable of accomplishing uniformity in glossiness |
Sep. 26, 2006 |
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