Title (en)

PROCESS AND APPARATUS FOR THE ELECTROPHOTOGRAPHIC PREPARATION OF HALF-TONE COLOUR COPIES

Publication

EP 0035203 A3 19821027 (DE)

Application

EP 81101289 A 19810223

Priority

DE 3008479 A 19800305

Abstract (en)

[origin: EP0035203A2] In a process and apparatus for the electrophotographic preparation of half-tone colour copies from an original in which at least three colour separation images are copied on top of one another successively onto an image carrier material and developed, during the entire copying process a photoconductive layer (5), the image carrier material (1) and a projection device (9) are mounted in a rigid arrangement with respect to one another and the charging units combined with the exposure units (19), further charging units (20), exposure orifices (21) with colour separation filter discs (36) and exposure shutters (37) and developing units (22) with air nozzles (35) are mounted together in a unit (16) which is mobile with respect to the rigid arrangement (5, 9) and are used in this way. <IMAGE>

IPC 1-7

G03G 13/01; G03G 15/01

IPC 8 full level

G03G 13/01 (2006.01); G03G 15/01 (2006.01)

CPC (source: EP)

G03G 13/01 (2013.01); G03G 15/0115 (2013.01); G03G 15/0142 (2013.01); G03G 15/0168 (2013.01)

Citation (search report)

• [Y] DE 2036140 B2 19731018
• [Y] US 2937943 A 19600524 - WALKUP LEWIS E
• [Y] US 3794418 A 19740226 - NAGASHIMA T, et al
• [Y] US 4008962 A 19770222 - NEPPER ROBERT F
• [Y] US 4176940 A 19791204 - KATAKABE NOBORU [JP], et al
• [Y] EP 0007193 A1 19800123 - GRACE ARCHIE R [AU], et al
• [A] US 3040621 A 19620626 - CRUMRINE HERBERT E
• [AD] DE 2625393 A1 19771215 - AGFA GEVAERT AG

Designated contracting state (EPC)

BE CH DE FR GB IT

DOCDB simple family (publication)

EP 0035203 A2 19810909; EP 0035203 A3 19821027; DE 3008479 A1 19810917; JP S56137358 A 19811027

DOCDB simple family (application)

EP 81101289 A 19810223; DE 3008479 A 19800305; JP 2852081 A 19810302