A control scale is a set of control elements (fields, test objects) on a print that allows to evaluate its quality. In doing so, both individual defects arising from certain defects in the printing process and their overall effect are controlled.
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This is me, Sergey Voropay, in a Heidelberg demo hall in Moscow on 25 of June, 1998. Exactly 26 years ago. I'm already working for Heidelberg, but still here for another session at the University of Printing.
I started to study printing in 1989, and had time to catch up with letterpress printing with its linotypes and flatbed printing machines with manual overlays. I studied at Minsk Vocational School No. 32 on Vera Khoruzhaya Street. 7 in Minsk. In those times there was no talk about any adequate quality control of the impression at all.
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