A post-processing apparatus includes: a cutter that cuts a transported sheet; a waste bin that stores a cutting waste generated by a cutting operation of the cutter and falling from the cutter; a sensor that detects the cutting waste at a predetermined position in a depth direction in the waste bin; and a hardware processor that controls the cutting operation of the cutter according to a cutting mode, sets a predetermined value according to the cutting mode when the sensor detects the cutting waste, counts the number of times of cutting by the cutter after the sensor starts to detect the cutting waste, and detects that the waste bin is full when the counted number of times of cutting reaches the predetermined value.

The invention relates to a device for producing an adhesive tape (2), comprising a supply unit (5) for supplying a strip-type textile carrier (3) of the adhesive tape (2), and a coating unit (6) for applying an at least lamellar adhesive coating (4) to at least one side of the carrier (3). The invention also relates to an ultrasound unit (9 and 10) and/or a laser unit for producing perforations and/or cut edges in the carrier (3).

The invention relates to a device for producing an adhesive tape (2), comprising a supply unit (5) for supplying a strip-type textile carrier (3) of the adhesive tape (2), and a coating unit (6) for applying an at least lamellar adhesive coating (4) to at least one side of the carrier (3). The invention also relates to an ultrasound unit (9 and 10) and/or a laser unit for producing perforations and/or cut edges in the carrier (3).

A method of converting a plurality of coreless roll products includes providing a first support structure and winding a paper product around the first support structure. The method also includes cutting through the paper product and the first support structure to form a plurality of cut portions of the paper product each wound around a cut portion of the first support structure. The method further includes removing the cut portion of the first support structure from each of the cut portions of the paper product to form a plurality of coreless roll products each comprising a center aperture. A method of preparing a coreless roll product for storage or shipment includes providing a coreless roll product comprising a center aperture and inserting a temporary support device into the center aperture of the coreless roll product. The method also includes expanding the temporary support device to approximate dimensions of the center aperture, wherein the temporary support device is configured to reduce deformation of the center aperture during storage or shipment.

A method of converting a plurality of coreless roll products includes providing a first support structure and winding a paper product around the first support structure. The method also includes cutting through the paper product and the first support structure to form a plurality of cut portions of the paper product each wound around a cut portion of the first support structure. The method further includes removing the cut portion of the first support structure from each of the cut portions of the paper product to form a plurality of coreless roll products each comprising a center aperture. A method of preparing a coreless roll product for storage or shipment includes providing a coreless roll product comprising a center aperture and inserting a temporary support device into the center aperture of the coreless roll product. The method also includes expanding the temporary support device to approximate dimensions of the center aperture, wherein the temporary support device is configured to reduce deformation of the center aperture during storage or shipment.

The apparatus for processing flat objects includes a transport system with several rotatably mounted conveyor rollers, the flat objects transportable in the direction of transport, and at least one releasably mounted tool module releasably coupled to only one drive shaft or to a lower and an upper rotatably mounted drive shaft; is supported displaceable along the only one drive shaft or the lower and the upper drive shaft; and is equipped with tool parts for processing the flat objects, of which at least one is drivable by the lower or the upper drive shaft. The tool module is supported by a tool carrier which is displaceable by means of a rotatably mounted setting shaft in parallel to the only one drive shaft and to the lower and the upper drive shafts, and which tool carrier has at least one holding element which serves for releasably holding the tool module.

The apparatus for processing flat objects includes a transport system with several rotatably mounted conveyor rollers, the flat objects transportable in the direction of transport, and at least one releasably mounted tool module releasably coupled to only one drive shaft or to a lower and an upper rotatably mounted drive shaft; is supported displaceable along the only one drive shaft or the lower and the upper drive shaft; and is equipped with tool parts for processing the flat objects, of which at least one is drivable by the lower or the upper drive shaft. The tool module is supported by a tool carrier which is displaceable by means of a rotatably mounted setting shaft in parallel to the only one drive shaft and to the lower and the upper drive shafts, and which tool carrier has at least one holding element which serves for releasably holding the tool module.

Each of a first rotary blade and a second rotary blade includes a rough surface portion and a smooth surface portion. The rough surface portion has a predetermined width from a blade edge at its circumferential edge portion and has an arithmetical mean roughness of greater than 0.5. The smooth surface portion is provided radially inward of the rough surface portion and has an arithmetical mean roughness less than the arithmetical mean roughness of the rough surface portion.

Each of a first rotary blade and a second rotary blade includes a rough surface portion and a smooth surface portion. The rough surface portion has a predetermined width from a blade edge at its circumferential edge portion and has an arithmetical mean roughness of greater than 0.5. The smooth surface portion is provided radially inward of the rough surface portion and has an arithmetical mean roughness less than the arithmetical mean roughness of the rough surface portion.

In an example, a cutting module may include a housing to engage the cutting module with a drive shaft, a cutter disposed in the housing, and a drive system to drive the cutter such that the cutter cuts media along a media path of an imaging device. The cutting module may move along the drive shaft laterally to the media path.