Control device and method to prevent register errors

Printing – Rolling contact machines – Rotary

Reexamination Certificate

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Details

C101S127000, C101S118000

Reexamination Certificate

active

06848361

ABSTRACT:
A control device for removing register errors on printing machines. The control device for controlling the printing drums for a printing machine has at least a first sensor to detect sheets on a conveyor belt and printing drums to apply printing images, whereby a spacing, which is defined between a position on the conveyor belt determined by a signal of the first sensor and the nip of a printing cylinder on the conveyor belt, corresponding to a whole-numbered multiple of the circumference of a nip roller.

REFERENCES:
patent: 5551339 (1996-09-01), Schadlich et al.
patent: 6112655 (2000-09-01), Suzuki et al.
patent: 6283021 (2001-09-01), Watanabe et al.
patent: 6371019 (2002-04-01), Bosen et al.
patent: 20030029341 (2003-02-01), Metzler
patent: 06198858 (1994-07-01), None
patent: 11070703 (1999-03-01), None

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