Man Roland Druckmaschinen Ag

Dieter Wagner

Bernd Hennig

Thomas Fuchs

Johannes Slotta

A cassette for a wedge-shaped ink well of a printing machine has a bottom and a rear wall and two side walls. A front of the cassette, opposite the rear wall, faces a duct roller of the printing machine when the cassette is inserted into the ink well and is open. A handle connected to the upper portions of the side walls is positioned such that the cassette tends to incline to prevent ink from flowing out of the front of the cassette when the cassette is handled outside of the printing machine. The bottom and the sides of the cassette are sealed against the ink well adjacent to the duct roller. A seating arrests movement of the cassette relative to the ink well when the cassette is inserted in the ink well thus ensuring that the duct roller uniformly inked between sides of the ink well.

Cassette for a wedge-shaped ink well of printing machines

An inking apparatus for rotary printing machines includes a rotatably mounted, drivable ink roller and at least one ink container mounted such that it can be swivelled away from the roller, favoring cleaning and ink change. The swivelably mounted ink container permits the ink container to be emptied in an operator-friendly fashion avoiding ink residues to the greatest possible extent and also permits thorough cleaning of the ink container and the roller with good accessibility. The roller is mounted in a separate holder and the holder is mounted in the frame in such a way as to be swivelable separately from as well as together with the ink container.

Inking apparatus for rotary printing machines

A method for controlling the ink guidance of a printing machine, especially a sheet-fed offset printing machine. Ink-density spectra are recorded by means of a spectral photometer at a plurality of image points of the original and of the printed copy and the differential ink-density spectra are determined from these values. These differential ink-density spectra are then represented as a linear combination of the individual ink-density spectra of the inks participating in the composite printing. Regulating commands for the ink-guide members of the printing machine are thereupon derived from the proportionality factors of this linear combination.

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Neundorf, Germany

Dieter Wagner