A replaceable stack sheet replaceably provided in a medium integration/separation device to guide integration of a medium according to an embodiment includes a body which is coupled to a rotary shaft and in which a plurality of support shafts are spaced apart from each other in a circumferential direction, and a plurality of sheet pieces having ends rotatably coupled to the plurality of support shafts.

Systems and methods of non-contact tensioning of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor. The magnetic rotor is spaced apart from the metal strip by a first distance. The systems and methods also include tensioning the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is tensioned in an upstream direction or a downstream direction. In other aspects, rotating the magnetic rotor induces a magnetic field into the metal strip such that a force normal to a surface of the metal strip is applied to the metal strip.

Systems and methods of non-contact tensioning of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor. The magnetic rotor is spaced apart from the metal strip by a first distance. The systems and methods also include tensioning the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is tensioned in an upstream direction or a downstream direction. In other aspects, rotating the magnetic rotor induces a magnetic field into the metal strip such that a force normal to a surface of the metal strip is applied to the metal strip.

Systems and methods of pre-ageing of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor of a reheater. The systems and methods also include heating the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is heated.

Systems and methods of pre-ageing of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor of a reheater. The systems and methods also include heating the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is heated.

Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

A sheet loading device includes a discharge roller pair, a loading tray, a paddle member, a sheet holding member, a tray lifting-lowering drive portion, a top surface detection sensor, and a control portion. The control portion is capable of performing a lifting-lowering operation to arrange the loading tray at a reference position by lowering the loading tray with the sheet holding member arranged at the holding position to turn the top surface detection sensor into an off state, then lifting the loading tray to turn the top surface detection sensor into an on state, and then lowering the loading tray again to turn the top surface detection sensor into the off state and stopping the loading tray. With the loading tray at the reference position, a predetermined clearance is provided between a top surface of a sheet loaded on the loading tray and a rotational orbit of the paddle member.

A sheet loading device includes a discharge roller pair, a loading tray, a paddle member, a sheet holding member, a tray lifting-lowering drive portion, a top surface detection sensor, and a control portion. The control portion is capable of performing a lifting-lowering operation to arrange the loading tray at a reference position by lowering the loading tray with the sheet holding member arranged at the holding position to turn the top surface detection sensor into an off state, then lifting the loading tray to turn the top surface detection sensor into an on state, and then lowering the loading tray again to turn the top surface detection sensor into the off state and stopping the loading tray. With the loading tray at the reference position, a predetermined clearance is provided between a top surface of a sheet loaded on the loading tray and a rotational orbit of the paddle member.

An image forming apparatus includes a stacking portion, a pickup roller, a motor, an image forming unit, and a controller. Upon receiving an instruction for starting a first image forming job, the controller performs an initial operation of supplying current to a motor winding of the motor in a stop state and determining a phase of the rotor based on the flowing current. Based on the determined phase, the controller supplies current to rotate the rotor from its stop state and holds the rotor at a first phase when the first job ends. Upon receiving start instructions for a second image forming job within a period until a predetermined time elapses from when the rotor is held at the first phase, the controller rotates the rotor without performing the initial operation. The controller stops supplying current to the winding if no instructions are not received for starting the second job.