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Class Information
Number: 399/231
Name: Electrophotography > Image formation > Development > Plural diverse (e.g., color) > Toner images overlapped
Description: Subject matter wherein a second or subsequent toner image is developed on the previously developed image(s).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7526235 |
Image-forming device |
Apr. 28, 2009 |
| 7499659 |
Image-forming apparatus and image-forming method |
Mar. 3, 2009 |
| 7450888 |
Image forming apparatus and method of detecting home position error by sensing an indicating unit |
Nov. 11, 2008 |
| 7406281 |
Image forming apparatus and method thereof |
Jul. 29, 2008 |
| 7135260 |
Imaging system |
Nov. 14, 2006 |
| 6968148 |
Image adjusting method and image forming apparatus |
Nov. 22, 2005 |
| 6885841 |
Image forming apparatus and color superimposition adjustment method of image forming apparatus |
Apr. 26, 2005 |
| 6671479 |
Selective depopulation and/or repopulation of a full color image forming device |
Dec. 30, 2003 |
| 6374072 |
Electrographic printer device with additional color printing unit as well as method therefor |
Apr. 16, 2002 |
| 6360070 |
Image forming apparatus including a plurality of closely spaced transfer stations for sequentially transferring aligned, superimposed image portions to a printing medium |
Mar. 19, 2002 |
| 6266073 |
Four beam electrophotographic printing apparatus |
Jul. 24, 2001 |
| 6188860 |
Method and arrangement for developing a plurality of electrostatic images on a substrate |
Feb. 13, 2001 |
| 6184914 |
Electrophotographic printing system and method, using toners that exhibit different charge states |
Feb. 6, 2001 |
| 6148168 |
Apparatus for forming superimposed image patterns having controlled densities |
Nov. 14, 2000 |
| 6088477 |
System for controlling an amount of undercolor removal based on a grayness signal, a darkness signal, and a black signal |
Jul. 11, 2000 |
| 6047155 |
Color printing machine having AC pretransfer toner treatment |
Apr. 4, 2000 |
| 5999783 |
Multiple charging of a toner image for transfer |
Dec. 7, 1999 |
| 5985499 |
Method and apparatus for forming two toner images in a single frame |
Nov. 16, 1999 |
| 5963764 |
Method and image-forming apparatus for forming at least two toner images in register on a charge retentive medium |
Oct. 5, 1999 |
| 5926674 |
Reverse polarity split recharge in recharge-expose-and-develop image on imaging printing |
Jul. 20, 1999 |
| 5926679 |
Method and apparatus for forming an image for transfer to a receiver sheet using a clear toner and sintering of a pigmented toner layer |
Jul. 20, 1999 |
| 5893658 |
Image plane registration system for electrographic systems |
Apr. 13, 1999 |
| 5848335 |
Internal erase before last development in color electrophotographic printing |
Dec. 8, 1998 |
| 5848337 |
Electrical biasing scheme for preventing overplating in an image-on-image electrostatographic printing system |
Dec. 8, 1998 |
| 5797070 |
Image-forming apparatus featuring a plurality of image forming means |
Aug. 18, 1998 |
| 5794106 |
Erase before D.C. recharge in color electrophotographic printing |
Aug. 11, 1998 |
| 5778288 |
Erase before A.C. recharge in color electrographic printing |
Jul. 7, 1998 |
| 5778289 |
D.C. recharge to reduce cross contamination in the read IOI process |
Jul. 7, 1998 |
| 5774771 |
Image forming method and apparatus using a particular toner |
Jun. 30, 1998 |
| 5740502 |
Image forming apparatus and image forming method for forming adjacent images |
Apr. 14, 1998 |
| 5729809 |
Color image forming apparatus with intermediate transfer |
Mar. 17, 1998 |
| 5715329 |
Digital copying machine with memory for compressed image data |
Feb. 3, 1998 |
| 5666612 |
Roller to press the image toner on the photoreceptor |
Sep. 9, 1997 |
| 5655191 |
Color image recording method for transferring a multi-colored image to an image receptor |
Aug. 5, 1997 |
| 5627629 |
Image forming apparatus for forming an image on an image receiving member by multiple image transfer |
May. 6, 1997 |
| 5515155 |
Method and apparatus for establishing exposure and developer set points for color image formation |
May. 7, 1996 |
| 5347345 |
Method and apparatus of creating two-color images in a single pass |
Sep. 13, 1994 |
| 5329346 |
Multi-color image forming system |
Jul. 12, 1994 |
| 5285246 |
Image forming method and apparatus that maintains uniform image glossiness |
Feb. 8, 1994 |
| 5283615 |
Image forming apparatus having a plurality of developing devices |
Feb. 1, 1994 |
| 5276487 |
Method of preventing colors from being mixed for a two-color image forming apparatus |
Jan. 4, 1994 |
| 5260752 |
Image forming method including an additional exposing step |
Nov. 9, 1993 |
| 5258813 |
Developing device for a multicolor image forming apparatus having a toner particle size distribution which prevents mixture of toners of different colors |
Nov. 2, 1993 |
| 5255062 |
Image forming apparatus having a removal means for separating developers |
Oct. 19, 1993 |
| 5241357 |
Color image forming equipment with two developers and a pulse bias |
Aug. 31, 1993 |
| 5204729 |
Full color copying machine |
Apr. 20, 1993 |
| 5187535 |
Image forming apparatus |
Feb. 16, 1993 |
| 5184183 |
Apparatus for printing grey scale images |
Feb. 2, 1993 |
| 5160969 |
Image forming apparatus having a separate black developer stored for a color image |
Nov. 3, 1992 |
| 5142337 |
Printing grey scale images |
Aug. 25, 1992 |
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