Abstract: The invention relates to a device for observing a moving material web, in particular to observe a printed material web during the printing process, with a light source positioned on the front side of the material web to illuminate an observed section of the material web, with a camera positioned on the front side of the material web to record still images of the material web within the observed section, and with a light-diffusing surface positioned on the back side of the material web and within the observed section of the material web. In order to create a device for print image observation that can without exception detect color defects for any print job on an otherwise transparent material web, it is provided that the light-diffusing surface has elements to control the color of the light-diffusing surface.

Abstract: The invention relates to a changing station for sleeves of printing machines with a lifting platform, disposed on the side of the printing machine, and with a wagon, in which a vertically adjustable shelf with carrying mandrels for receiving sleeves is received, whereby the shelf can be coupled to the lifting platform for joint lifting and lowering.

Abstract: The invention relates to a changing station for sleeves of printing machines with a lifting platform, disposed on the side of the printing machine, and with a wagon, in which a vertically adjustable shelf with carrying mandrels for receiving sleeves is received, whereby the shelf can be coupled to the lifting platform for joint lifting and lowering.

Abstract: A changing station for sleeves of printing machines with a lifting platform, disposed on the side of the printing machine, and with a wagon, in which a vertically adjustable shelf with carrying mandrels for receiving sleeves is received, whereby the shelf can be coupled to the lifting platform for joint lifting and lowering while the wagon remains on the ground.

Abstract: The invention relates to a changing station for sleeves of printing machines with a lifting platform, disposed on the side of the printing machine, and with a wagon, in which a vertically adjustable shelf with carrying mandrels for receiving sleeves is received, whereby the shelf can be coupled to the lifting platform for joint lifting and lowering.

Abstract: An ink chamber doctor, bearing two doctor blades that are arranged in the shape of a roof can be placed in position at an anilox roller of a printing machine and moved away from the same. To guarantee that the central plane of the ink chamber doctor always agrees with a diametral plane of the anilox roller so that the result is a uniform wearing of the doctor blades, the side faces of the strip-shaped housing of the ink chamber doctor bear guide means, which can be used in guides of the side members. The ink chamber doctor can be slid in the guides at least in its end region facing the anilox roller up to its positioning at said anilox roller in a plane that includes both the central plane of the ink chamber doctor and also the axis of the anilox roller. Furthermore, means for pressing the ink chamber doctor against the anilox roller and/or for holding the ink chamber doctor at the anilox roller are envisaged.