EP 0103310 B1 19870415 - DEVELOPING DEVICE FOR AN ELECTROSTATIC COPYING APPARATUS
Title (en)
DEVELOPING DEVICE FOR AN ELECTROSTATIC COPYING APPARATUS
Publication
Application
Priority
- EP 83109210 A 19810130
- JP 1181080 A 19800131
- JP 1181180 A 19800131
- JP 1203480 U 19800131
- JP 1203580 U 19800131
- JP 1203680 U 19800131
- JP 1203780 U 19800131
Abstract (en)
[origin: EP0103310A2] A developing device for a transfer type electrostatic copying apparatus in which a permanent magnet having a plurality of magnetic poles magnetized at each equal space in a peripheral direction of the permanent magnet is coaxially secured in a hollow developing sleeve made of non-magnetic material and driven to rotate, a one-component magnetizable toner is supplied on the developing sleeve so as to form a magnetic brush, and a bristle cutting member restricts a length of the magnetic brush, characterized in that there is provided a blade member made of non-magnetic material, disposed upstream along the rotational direction of the developing sleeve at the vicinity of the bristle cutting member. inclining to separate from the peripheral surtace of the developing sleeve downstream along the rotational direction. and contacting with the peripheral surface of the developing sleeve.
IPC 1-7
IPC 8 full level
G03G 15/09 (2006.01); G03G 21/00 (2006.01)
CPC (source: EP)
G03G 15/09 (2013.01); G03G 21/0035 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0103310 A2 19840321; EP 0103310 A3 19840926; EP 0103310 B1 19870415
DOCDB simple family (application)
EP 83109210 A 19810130