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1. EP1927033 - METHOD AND DEVICE TO REGULATE TONER IN AN IMAGE FORMING DEVICE

Office European Patent Office
Application Number 06739283
Application Date 22.03.2006
Publication Number 1927033
Publication Date 04.06.2008
Publication Kind A1
IPC
G03G 15/08
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
06for developing
08using a solid developer, e.g. powder developer
CPC
G03G 15/0812
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
06for developing
08using a solid developer, e.g. powder developer
0806on a donor element, e.g. belt, roller
0812characterised by the developer regulating means, e.g. structure of doctor blade
G03G 2215/0634
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
2215Apparatus for electrophotographic processes
06Developing structures, details
0634Developing device
G03G 2215/0866
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
2215Apparatus for electrophotographic processes
08Details of powder developing device not concerning the development directly
0855Materials and manufacturing of the developing device
0866Metering member
Applicants LEXMARK INT INC
Inventors LEEMHUIS MICHAEL CRAIG
BAKER RONALD WILLARD
COUSOULIS MARC
GOGATE HRISHIKESH PRAMOD
Designated States
Priority Data 2006010427 22.03.2006 US
11086941 22.03.2005 US
Title
(DE) VERFAHREN UND EINRICHTUNG ZUM REGULIEREN VON TONER IN EINER BILDERZEUGUNGSEINRICHTUNG
(EN) METHOD AND DEVICE TO REGULATE TONER IN AN IMAGE FORMING DEVICE
(FR) PROCEDE ET REGULATION DU TONER DANS UN DISPOSITIF DE FORMATION D'IMAGE
Abstract
(EN)
A device to regulate toner within an image forming apparatus. The regulating member has a first section and a toner regulating edge with at least one gap. The regulating member controls the amount of toner that is distributed on the surface of the toner developer roller by contacting the toner developing roller in a contact region. The gap, having at least one upper edge, may regulate toner on the toner developer roller near the contact region. The toner regulating device may prevent inadvertent toner marks that may appear on printed media.

(FR)
L'invention concerne un dispositif de régulation du toner dans un appareil de formation d'image. L'élément de régulation possède une première partie et un bord de régulation du toner comportant au moins un espace. L'élément de régulation commande la quantité de toner distribuée sur la surface du rouleau à révélateur à toner par mise en contact dudit rouleau avec une zone de contact. L'espace, qui possède au moins un bord supérieur, peut réguler le toner sur le rouleau à révélateur à toner à proximité de la zone de contact. Le dispositif de régulation de toner peut prévenir l'apparition de marques de toner indésirables sur le support imprimé.

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