EP 0386489 A3 19910403 - METHOD OF CONTROLLING DAMPENING IN AN OFFSET PRINTING MACHINE
Title (en)
METHOD OF CONTROLLING DAMPENING IN AN OFFSET PRINTING MACHINE
Publication
Application
Priority
DE 3907584 A 19890309
Abstract (en)
[origin: EP0386489A2] For achieving a consistently good printing quality, it is of great importance that the control of the quantity of dampening liquid on the printing plate takes place very rapidly without this causing instabilities. Furthermore, the control should be capable of keeping the quantity of dampening liquid constant even under the influence of severe disturbing factors. To achieve the requirements set, the following method of controlling the quantity of dampening liquid on the printing plate is proposed: In the case of control deviations (Xd), in which the intended value (Sw soll) is greater than the actual value (Sw ist), the controller 24 is operated with a greater increase factor (KR) than in the case of control deviations (XD) in which the intended value (Sw soll) is smaller than the actual value (Sw ist). <IMAGE>
IPC 1-7
IPC 8 full level
B41F 7/24 (2006.01); B41F 33/00 (2006.01); B41F 33/10 (2006.01); G05B 11/36 (2006.01); G05B 11/42 (2006.01)
CPC (source: EP)
B41F 33/0054 (2013.01)
Citation (search report)
[A] DE 3636507 A1 19880428 - GRAPHO METRONIC GMBH & CO [DE]
Designated contracting state (EPC)
CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0386489 A2 19900912; EP 0386489 A3 19910403; EP 0386489 B1 19940518; AU 4879990 A 19900913; AU 625335 B2 19920709; CA 2008816 A1 19900909; CN 1019651 B 19921230; CN 1045366 A 19900919; DE 3907584 A1 19900913; DE 59005701 D1 19940623; ES 2056260 T3 19941001; JP H02273236 A 19901107
DOCDB simple family (application)
EP 90102549 A 19900209; AU 4879990 A 19900124; CA 2008816 A 19900129; CN 90101040 A 19900302; DE 3907584 A 19890309; DE 59005701 T 19900209; ES 90102549 T 19900209; JP 5517490 A 19900308