Man Roland Druckmaschinen Ag

Manroland Ag

Manroland Sheetfed Gmbh

Gerhard Augsberg

Helmut Schild

Klemens Kemmerer

Ulrich Jung

Harald Bayer

Peter Schramm

Nikola Pupic

Gerd Steiner

Georg Herzan

Jürgen Schölzig

Armin Schafer

Jurgen Kramp

Stefan Vogel

Jens Kaiser

Dirk Meinhardt

Bernd Dipl-Ing Lindner

Holger Dr-Ing Wiese

A sheet-fed printing machine having a control console at the downstream end of a sheet transfer system which transfers printed sheets to a delivery unit. The control console has an inclined proof sheet support surface disposed in direct overlying relation to the delivery unit and sheet transfer system upon which a proof sheet withdrawn from the delivery unit may be positioned and assessed for quality. The support surface further includes control elements for directly adjusting and controlling printing quality based upon assessment of the proof sheet. With the control console support surface in overlying relation to the sheet transfer system and the delivery unit, the support surface is at a height which can be comfortably used by an operator of average height and does not impede access to the end of the printing machine nor increase its overall length.

Sheet-fed printing machine with improved quality control console

A clamping device for attachment of a printing plate having registry defining notches in the leading edge thereof in proper registry on the plate cylinder of a sheet-fed printing machine is provided. The clamping device includes a clamping rail disposed in an axis-parallel recess in the plate cylinder and has a closable plate receiving gap therein for fastening the leading edge of the printing plate to the clamping rail. A plurality of adjustable stops are disposed in the plate receiving gap of the clamping rail for abutting the corresponding registry defining notches in the leading edge of the printing plate for locating the printing plate on the cylinder in proper registry.

Clamping device for attaching printing plates in proper registry on the

As ink is conveyed through the inking unit of a printing machine, a state of equilibrium occurs which ensures adequate inking of the printing plate during continuous printing. The equilibrium state includes different ink gradients for the respective printing zones superimposed on a uniform base level. In order to achieve the state of equilibrium rapidly and easily at the start of printing, an ink distribution is produced in the inking unit before printing closely matching the state of equilibrium for continuous printing. An accurately defined ink film distribution is initially fed to the inking unit rollers via the vibrator. Preferably, when the ink applicator rollers are thrown off of the plate cylinder and the sheet feed is off, a predetermined amount of ink is introduced to the inking unit. The vibrator is then shut off and the base level of ink is allowed to become uniformly distributed. Next the ink profile is set at the ink metering elements and the vibrator is turned on. When the ink profile propagates to the applicator rollers, the applicator rollers are thrown on to the plate cylinder and the sheet feed is turned on.

Inking unit pre-adjustment method

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Seligenstadt, Germany

Gerhard Augsberg