Patent ID: 8096238
Filing Date: 2012-01-17
Classification: B41F

Abstract:
1. A satellite printing unit of a web-fed printing press, comprising four printing couples, wherein each printing couple is comprised of a plate cylinder, a transfer cylinder, an inking system and a dampening system, wherein each of the transfer cylinders of said respective printing couples rolls off a common impression cylinder to form a corresponding nip, wherein each plate cylinder features a high lockup slot and a low lockup slot, so that, as viewed in a circumferential direction, two printing plates can be clamped in succession on the respective plate cylinder, and wherein each transfer cylinder has a single lockup slot, so that, as viewed in the circumferential direction, a transfer plate can be clamped on the respective transfer cylinder, wherein the transfer cylinders of the printing couples are aligned relative to the plate cylinders of the printing couples in such a way that, on a first group of printing couples, which is comprised of at least one printing couple, the single lockup slot of the respective transfer cylinder is positioned to roll over the high lockup slot of the respective plate cylinder to produce a first vibration effect, and that, on a second group of printing couples, which is comprised of at least one printing couple, the single lockup slot of the respective transfer cylinder is positioned to rolls over the low lockup slot of the respective plate cylinder to produce a second vibration effect being different from the first vibration effect, such that the impression cylinder is excited to fewer vibrations as a result of an interaction of the first and second vibration effects, wherein each of the printing couples is assigned to exactly one of the first and second group of printing couples.