Method for operating a printing press

Details Method for operating a printing press Method for operating a printing press

2005-03-28

2008-12-09

Yan, Ren (Department: 2854)

Printing

Processes

Condition responsive

C101S422000, C101S480000, C101S485000

Reexamination Certificate

active

07461595

ABSTRACT:
A method for operating a printing press, which enables a uniform print quality to be achieved during long periods of operation without replacement of the impression cylinder. The printing press comprises several printing units having impression cylinders and a sheet turning device disposed between the printing units. The circumferential surface of the impression cylinder has an ink-repelling surface. The printing press is used to print sheets, until the ink-repelling surface of the circumferential surface of the impression cylinder has been worn away to an extent that the ink-repelling effect is less than a predetermined threshold value, after which a foil, of which the side facing away from the circumferential surface has an ink-repelling surface, is removably placed on the circumferential surface of the impression cylinder.

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patent: 0 457 955 (1991-11-01), None
patent: 2 236 508 (1991-04-01), None

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