Global Patent Index - EP 0308429 B1

EP 0308429 B1 19911023 - CO- AND COUNTER-ROTATING DEVELOPMENT SYSTEM FOR AN ELECTRO-PHOTOGRAPHIC INSTALLATION

Title (en)

CO- AND COUNTER-ROTATING DEVELOPMENT SYSTEM FOR AN ELECTRO-PHOTOGRAPHIC INSTALLATION

Publication

EP 0308429 B1 19911023 (DE)

Application

EP 87905942 A 19870921

Priority

DE 3632441 A 19860924

Abstract (en)

[origin: WO8802506A1] Development system comprising several development cylinders (16, 17, 18) rotating in the same direction as the charge image carrier and a counter-rotating development cylinder (19). The mixture (11) is dispensed from a store (12) and by means of a bucket wheel (14) to the first co-rotating cylinder (16), and from there is conveyed to the counter-rotating cylinder (19), passing via other co-rotating cylinders (17, 18). Outside said cylinder (19) is provided a light-exposure system consisting of a transparent protection tube (26) containing an LED strip (25), and connected to this system is a collector cylinder (28).

IPC 1-7

G03G 15/08; G03G 15/09

IPC 8 full level

G03G 15/08 (2006.01); G03G 15/09 (2006.01)

CPC (source: EP US)

G03G 15/0806 (2013.01 - EP US); G03G 15/09 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT NL SE

DOCDB simple family (publication)

WO 8802506 A1 19880407; DE 3632441 A1 19880331; DE 3774126 D1 19911128; EP 0308429 A1 19890329; EP 0308429 B1 19911023; JP 2865668 B2 19990308; JP H01503811 A 19891221; US 4952979 A 19900828

DOCDB simple family (application)

DE 8700429 W 19870921; DE 3632441 A 19860924; DE 3774126 T 19870921; EP 87905942 A 19870921; JP 50532387 A 19870921; US 33166689 A 19890322