Abstract: A system for correcting skew of a web of material being fed through a machine includes first and second pinch assemblies placed at a distance transversely to a direction of feeding. First and second stepper motors drive the first and second pinch assemblies, respectively. A control provides first and second pulse trains to drive the first and second stepper motors, respectively. A device determines a value for the skew of the web of material. A method for controlling the system includes establishing first and second corrective pulse train sections for the first and second stepper motors, respectively, in accordance with a determined skew value, and providing first and second pulse trains for driving the first and second stepper motors, respectively.

Abstract: A hot melt ink jet printing system and method is defined in which sheets are advanced to a print surface where hot, molten ink is applied to the sheets, and the sheets, prior to reaching the print surface, are heated to a first temperature that is higher than a second temperature which they will assume on the print surface, so as to prevent the sheets from cockling.

Abstract: A sheet handling device for a printer or copier which includes a print surface for supporting a first surface of a sheet, a feed plate having an edge adjacent to the print surface, and a feed mechanism for feeding the sheet to the print surface through a gap between the edge of the feed plate and the print surface, wherein the edge of the feed plate has notches arranged such that at the edge, the notches provide space for the sheet at a second surface of the sheet.

Abstract: A printer including a reel for supplying a recording medium in the form of a coil of an endless web wound on the reel, a feed path leading from the reel to a print station, a cutting device disposed at the feed path for cutting the web, and a feed control system, wherein the feed control system is adapted to withdraw a cut end portion of the web onto the peripheral surface of the coil when the printer is in a predetermined operating condition.

Abstract: A printer having a sheet feed system for feeding an image receiving sheet to a print station, and a sheet treatment system for subjecting the paper to an anti-cockle treatment including a humidity sensor arranged to detect the degree of humidity of ambient air, and a control system adapted to control the sheet treatment system in response to the detected degree of humidity.

Abstract: A printer including a print unit, a supply unit for holding a web of receiving material wound into a roll, a system for unwinding the web and transporting it for printing to the print unit, which supply unit is adapted to carry an elongate member on which the roll is fixed, substantially concentrically, the elongated member being provided at its peripheral edge with a pattern of sensorially perceptible discrete transitions, which pattern is substantially symmetrical with respect to a reference position on the elongated member and extends from this position to the vicinity of the ends of the elongated member.

Abstract: A printer for printing a substrate, including a print unit and a supply unit for holding a substrate and delivering the substrate for transport to the print unit, wherein the supply unit is provided with a member for receiving a core on which the substrate is wound, whereby the member containing the core is functionally connected to a motor for rotatably driving the core, and a downstream transport nip for engaging and transporting an unwound part of the substrate, said transport nip for the driving thereof being functionally connected to the said motor, wherein the transmission from the motor to the core and the nip, respectively, is such that on transport of the substrate to the print unit only the nip is actively driven by the motor and on the return of the substrate for winding thereof on the core both the core and the nip are actively driven by the motor, the core winding up as many meters of substrate per second as the nip returns.