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Class Information
Number: 399/313
Name: Electrophotography > Image formation > Transfer > Electrostatic > Roller or belt
Description: Subject matter wherein the electrostatic force for causing (inducing) transfer is applied to (a) a drumlike cylinder or (b) a flat, broad, continuous web or belt.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616909 |
Image forming apparatus and image forming method |
Nov. 10, 2009 |
| 7609998 |
Transfer unit and image forming apparatus |
Oct. 27, 2009 |
| 7599651 |
Image forming apparatus including grooved cam and link mechanism engaging with grooves of the grooved cam |
Oct. 6, 2009 |
| 7593677 |
Image forming apparatus with decreased potential difference between a belt member transfer portion and a belt member bending portion |
Sep. 22, 2009 |
| 7583921 |
Image forming apparatus and transfer unit |
Sep. 1, 2009 |
| 7540981 |
Biasable transfer composition and member |
Jun. 2, 2009 |
| 7534376 |
Biasable transfer composition and member |
May. 19, 2009 |
| 7519303 |
Image forming apparatus with color shift correction |
Apr. 14, 2009 |
| 7515842 |
Image forming apparatus with resistance controlled transfer member |
Apr. 7, 2009 |
| 7496302 |
Black print quality enhancement for high humidity environment |
Feb. 24, 2009 |
| 7496322 |
Device and method for charging a media transport belt conveyor in a printer or copier |
Feb. 24, 2009 |
| 7486919 |
Transfer apparatus and image forming apparatus |
Feb. 3, 2009 |
| 7474868 |
Belt unit and image-forming device having the same |
Jan. 6, 2009 |
| 7466948 |
Transfer station for an electrographic printer or copier |
Dec. 16, 2008 |
| 7462389 |
Transfer belt and image forming apparatus |
Dec. 9, 2008 |
| 7460804 |
Image forming device having an image detector |
Dec. 2, 2008 |
| 7460811 |
Image forming apparatus |
Dec. 2, 2008 |
| 7440720 |
Image forming apparatus and image transferring unit for the same |
Oct. 21, 2008 |
| 7428400 |
Primary transfer unit of image forming apparatus |
Sep. 23, 2008 |
| 7418218 |
Conductive backer brush for electrostatic brush cleaning of a belt without a ground layer |
Aug. 26, 2008 |
| 7418221 |
Transfer unit used with image forming apparatus |
Aug. 26, 2008 |
| 7412187 |
Apparatus and method for cleaning the transfer roller of image forming apparatus |
Aug. 12, 2008 |
| 7409182 |
Brush member and transfer device and image forming apparatus using the same |
Aug. 5, 2008 |
| 7406277 |
Semiconductive rubber member |
Jul. 29, 2008 |
| 7400853 |
Transfer device and image forming apparatus |
Jul. 15, 2008 |
| 7398043 |
Image forming apparatus free of defect due to substances bleeding from transferring member |
Jul. 8, 2008 |
| 7389076 |
Belt transfer device and image forming apparatus having the same |
Jun. 17, 2008 |
| 7386263 |
Device and method for electrically charging a transport belt using a contact lip made of a rubber material |
Jun. 10, 2008 |
| 7383006 |
Image forming apparatus |
Jun. 3, 2008 |
| 7379694 |
Belt transfer apparatus and image forming device |
May. 27, 2008 |
| 7376375 |
Belt-drive control device, color-shift detecting method, color-shift detecting device, and image forming apparatus |
May. 20, 2008 |
| 7335420 |
Feed/transport roller |
Feb. 26, 2008 |
| 7327972 |
Belt driving control apparatus, belt apparatus and image forming apparatus |
Feb. 5, 2008 |
| 7320822 |
Electrophotographic conductive member and electrophotographic apparatus |
Jan. 22, 2008 |
| 7319832 |
Attaching and detaching a process cartridge of an image forming device |
Jan. 15, 2008 |
| 7313345 |
Image forming unit |
Dec. 25, 2007 |
| 7308226 |
Image forming method and apparatus with reduced reverse toner transfer |
Dec. 11, 2007 |
| 7302215 |
Electrophotographic image forming apparatus having a separator to separate a printing medium from a transfer belt |
Nov. 27, 2007 |
| 7302218 |
Image forming apparatus with constant conveying velocity |
Nov. 27, 2007 |
| 7302217 |
Image forming apparatus and transfer apparatus employing endless belt |
Nov. 27, 2007 |
| 7298989 |
Image forming apparatus and cartridge with holding device |
Nov. 20, 2007 |
| 7283771 |
Charging roller |
Oct. 16, 2007 |
| 7269376 |
Image forming device |
Sep. 11, 2007 |
| 7260335 |
Image-information detecting device and image forming apparatus |
Aug. 21, 2007 |
| 7242897 |
Image forming apparatus, roller, belt, and fixing unit of image forming apparatus |
Jul. 10, 2007 |
| 7242894 |
Xerographic transfer station using a belt |
Jul. 10, 2007 |
| 7239834 |
Transport belt and image formation device using the same |
Jul. 3, 2007 |
| 7239835 |
Image forming apparatus with contact/separation mechanism |
Jul. 3, 2007 |
| 7236717 |
Rotatable roller, image forming apparatus employing same, and image forming apparatus cartridge employing same |
Jun. 26, 2007 |
| 7233750 |
Image forming apparatus with control of transfer charge |
Jun. 19, 2007 |
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