EP 2769269 B1 20180418 - DEVELOPMENT ROLLER WITH INCREASING MAGNETIC FIELD
Title (en)
DEVELOPMENT ROLLER WITH INCREASING MAGNETIC FIELD
Title (de)
ENTWICKLUNGSWALZE MIT EINEM ZUNEHMENDEN MAGNETFELD
Title (fr)
ROULEAU DE DÉVELOPPEMENT AVEC CHAMP MAGNÉTIQUE CROISSANT
Publication
Application
Priority
- US 201113278241 A 20111021
- US 201113278248 A 20111021
- US 2012055305 W 20120914
Abstract (en)
[origin: WO2013058905A1] A development system (10) for an electrophotographic printer (100) with multiple augers and containing a development roller (11) and a first channel (12) containing a feed auger (13) and developer (14), where the magnetic strength of the feed pole of the development roller increases in the direction of developer flow (18) in the first channel. This increase in magnetic field strength of the feed pole (50) ensures that a uniform layer of developer is formed on the development roller despite the volume of developer in the first channel decreasing along the length of the first channel in the direction of developer flow.
IPC 8 full level
G03G 15/09 (2006.01)
CPC (source: EP)
G03G 15/0921 (2013.01); G03G 2215/0827 (2013.01); G03G 2215/0838 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013058905 A1 20130425; CN 103890664 A 20140625; CN 103890664 B 20170517; EP 2769269 A1 20140827; EP 2769269 B1 20180418
DOCDB simple family (application)
US 2012055305 W 20120914; CN 201280051502 A 20120914; EP 12766541 A 20120914