EP 0182930 B1 19880629 - MAGNETIC ROLLS FOR COPIER MACHINES AND METHOD OF MAKING THE SAME
Title (en)
MAGNETIC ROLLS FOR COPIER MACHINES AND METHOD OF MAKING THE SAME
Publication
Application
Priority
EP 84114262 A 19841126
Abstract (en)
[origin: US4638281A] A magnetic roll for electro-photographic copy machines is provided with a carrier to which strip-shaped permanent magnetic components are fastened in an axial direction. Recesses are provided in the carrier having a cross-section larger than the magnetic components so as to permit selective radial, tangential and pivotal movement for universal positioning of the components within the recess. The components are selectively oriented to provide a predetermined induction value as measured at a predetermined distance outwardly of the carrier or with respect to adjacent poles as determined by discretely located Hall probes. The permanent magnetic components are fixed in the prescribed orientation by an injection moldable plastic material such as a plastic foam.
IPC 1-7
IPC 8 full level
B03C 1/12 (2006.01); G03G 13/09 (2006.01); G03G 15/09 (2006.01); H01F 7/02 (2006.01)
CPC (source: EP US)
G03G 15/0921 (2013.01 - EP US); Y10T 29/49075 (2015.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0182930 A1 19860604; EP 0182930 B1 19880629; AT E35466 T1 19880715; CA 1240731 A 19880816; DE 3472475 D1 19880804; JP S61148474 A 19860707; US 4638281 A 19870120
DOCDB simple family (application)
EP 84114262 A 19841126; AT 84114262 T 19841126; CA 489995 A 19850904; DE 3472475 T 19841126; JP 26396485 A 19851126; US 71863785 A 19850401