Printing plate holding device for use on drum of printing plate illuminator, has electrostatic plate holder to hold plates on drum and including voltage source to bring region in external section of drum to electrical level

摘要

The device has an electrostatic plate holder (6) to hold metallic printing plates (5) on a drum (1) of a printing plate illuminator. The holder has a voltage source to bring an external region in an external section of the drum to an electrical level that differs relative to the plates. The region has a metal foil electrically separated from the drum and the plates by internal and external insulating layers (2, 4).