The present invention relates to a force measuring device (10) for measuring the web tensions of a plurality of spaced apart longitudinal strips (5) of a longitudinally cut running material web that comprises a longitudinal direction defined by the running direction of the material web and a transverse direction, the force measuring device comprising an axle (12) and, supported on the axle, a measuring roll (20) wrapped around by the material web. Here, it is provided that the measuring roll is formed as a segmented measuring roll (20) having a plurality of measuring segments (22), the measuring segments (22) are arranged on the axle (12) in a respective measuring position, such that the spaced apart longitudinal strips (5) of the running material web wrap around in each case one or more measuring segments (22) and each measuring segment (22) is wrapped around by at most one longitudinal strip (5), each measuring segment (22) includes a dedicated load cell (26) for determining a web tension fraction of the longitudinal strip (5) wrapped around the measuring segment, the load cell providing a mount with which the measuring segment (22) sits on the axle (12), the force measuring device further comprising an evaluation unit (18) to which the measuring segments (22) are connected via electrical conductors and to which the measuring signals supplied by the load cells (26) in the measuring segments (22) are conductible, and the evaluation unit (18) comprising a web tension aggregation means (19) that is arranged and adapted to determine, for each longitudinal strip (5), from the web tension fractions that are determined by the load cells (26) of the measuring segments (22) wrapped around by said longitudinal strip (5), the total web tension of the longitudinal strip (5).

An image forming system includes: a sheet conveying section configured to convey a long sheet; an image forming/fixing section configured to execute an image forming/fixing operation to form and fix a toner image on the long sheet to be conveyed by the sheet conveying section; a skew detection section configured to detect a skew of the long sheet to be conveyed by the sheet conveying section; a skew correction section configured to execute a skew correction operation to correct the skew of the long sheet; and a control section configured to perform control to execute the skew correction operation when the skew has been detected in a first area where the skew correction operation does not affect the image forming/fixing operation, and perform control to execute the skew correction operation when the skew has been detected in a second area where the skew correction operation affects the image forming/fixing operation.

A web transport assembly is provided for transporting a web along a processing unit for processing the web, the web transport assembly comprising: a transport device arranged for moving the web in a transport direction through a transport path along the processing unit, the transport device being arranged downstream of the processing unit relative to the transport direction; and a friction-based tensioning device arranged upstream of the processing unit relative to the transport direction; wherein the friction-based tensioning device comprises a guiding surface for guiding the web towards the processing unit and a plurality of suction holes distributed over the guiding surface for providing a suction force to a contact side of the web, the plurality of suction holes being arranged in fluid communication to a suction source, which generates the suction force, wherein the guiding surface is configured to exert a friction force on the web in response to the suction force provided to the contact side of the web; and wherein the friction-based tensioning device is configured for controlling a tension of the web between the guiding surface and the transport device.

In wide format web printing the loading of a new web medium is a cumbersome process, requiring the operator to raise a very wide flexible web from the supply roll up to the print surface. The present invention provides a simple apparatus to aid in the manual loading process. The web transport assembly of the apparatus comprises a supply unit arranged for supplying the web from a media roll to a transport path and a pick-up device comprising a pick-up surface and a holding mechanism configured for releasably holding a leading edge section of the web onto the pick-up surface, wherein the pick-up device is moveable between a first position near the supply unit for attaching the leading edge section and a second position near the print surface. The leading edge section is moved upwards towards the print surface while held by the holding mechanism.

An apparatus for winding an elongated element onto a collection reel with the interposition of a service fabric, includes a device for feeding the elongated element toward the collection reel, a device for feeding the service fabric toward the collection reel, a device for driving in rotation the collection reel, and a control device for controlling the rotation speed of the collection reel. The control device includes a device for detecting the actual winding diameter of the collection reel and a device for adjusting the rotation speed of the collection reel according to the actual winding diameter of the collection reel.

The invention relates to a device for decurling a web of material, such as a paper web, which device comprises: a first main roller; a second main roller arranged parallel to and at a distance of the first main roller, wherein the first main roller and the second main roller are arranged in a main plane; and a decurling roller arranged parallel to and between the first and second main roller, when viewed in a direction perpendicular to the main plane, wherein the spacing between the first main roller and the second roller is smaller than the diameter of the decurling roller.

An image forming apparatus includes: a conveyance section configured to convey a sheet in a direction opposite to a first conveyance direction during image formation, the direction being a second conveyance direction; and a distortion correction section disposed on an upstream side of a transfer nip in the first conveyance direction and configured to correct, when the sheet is conveyed by the conveyance section in the second conveyance direction, distortion of the sheet generated when the sheet passes through a fixing nip.

The device includes a roller for guiding the web-like-material, supported idle about a rotation axis and having a first axial end and a second axial end. Two lateral supports support the guide roller. The guide roller is configured so that the rotation axis thereof may be inclined with respect to a position orthogonal to the advancement direction of the web-like material, to compensate changes in the transversal direction of the tension in the web-like material.