A rotary printing press has at least one printing group with at least one waterless planographic printing forme. An inking unit is assigned to the printing group as is provided with a screen roller for use in conveying printing ink to the printing group. The screen roller has line engraving or cross-hatchings, with an angle of inclination or an angle of rise of between 50.degree. and 80.degree. and preferably also has a raster frequency of less than 80 lines or cross hatchings per centimeter on its surface area.

 
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> Sheet combining device and a method for combining sheets

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