In one example, a printing device is described. The printing device may include a transport roller to move a print medium through the printing device, a sensor to detect a trailing edge of the print medium, a processor, and a non-transitory computer-readable medium storing instructions. In one example, the instructions, when executed by the processor, cause the processor to move the print medium toward an output of the printing device via the transport roller after a printing to the print medium, detect the trailing edge of the print medium via the sensor during a movement of the print medium via the transport roller, and hold the print medium in a position in contact with the transport roller, in response to a detection of the trailing edge of the print medium via the sensor.

Provided are a rubber composition which is a base of a roller main body and capable of imparting favorable flexibility to the roller main body while maintaining high abrasion resistance to form, for example, a paper feeding roller that has a favorable paper feeding performance and can be used as a paper supply roller or the like; and a paper feeding roller in which the roller main body is formed using the rubber composition. There is provided a rubber composition contains a rubber that includes 20 to 80 parts by mass of a non-oil extended EPDM having an ethylene content of 55% to 72%, and an oil extended EPDM; and 20 parts by mass or less of a filler and 2.5 parts by mass or more of a peroxide crosslinking agent per 100 parts by mass of the rubber.

Provided are a rubber composition capable of imparting a high tensile strength to a roller main body so as to be able to be used for equipment that allows paper to pass through at high speed, while maintaining high abrasion resistance of the roller main body and a favorable paper feeding performance of the paper feeding roller; and a paper feeding roller. There is provided a rubber composition contains: a rubber that includes a non-oil extended EPDM having an ethylene content of 55 to 72%; and more than 20 parts by mass and 30 parts by mass or less of a filler, and 2.5 parts by mass or more of a peroxide crosslinking agent per 100 parts by mass of the rubber, in which the filler contains 15 to 30 parts by mass of an amorphous silica per 100 parts by mass of the rubber.

A sheet conveying device includes a housing, an opening unit, and a drive rotator. The opening unit is openably close the housing, the opening unit including a driven rotator including first driven rollers at each end regions of an axis of the driven rotator, and a second driven roller at a center region of the axis. The drive rotator forms a conveyance roller pair with the driven rotator to convey a sheet. The second driven roller has an outer diameter greater than each of the first driven rollers.

A sheet conveying device includes a housing, an opening unit, and a drive rotator. The opening unit is openably close the housing, the opening unit including a driven rotator including first driven rollers at each end regions of an axis of the driven rotator, and a second driven roller at a center region of the axis. The drive rotator forms a conveyance roller pair with the driven rotator to convey a sheet. The second driven roller has an outer diameter greater than each of the first driven rollers.

Systems and methods of hot forming a metal blank include receiving the metal blank at a heater and positioning the blank adjacent a magnetic rotor of the heater. The systems and methods also include heating the metal blank through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal blank such that the metal blank is heated.

Systems and methods of hot forming a metal blank include receiving the metal blank at a heater and positioning the blank adjacent a magnetic rotor of the heater. The systems and methods also include heating the metal blank through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal blank such that the metal blank is heated.

A sheet processing apparatus includes a conveying roller that conveys a sheet, a processing tray on which the sheet from the conveying roller is loaded, a reference stopper provided at one end of the processing tray, a return paddle having an elastic piece for transferring the sheet from the conveying roller to the reference member, and a roller arm that moves the return paddle in the sheet thickness direction at a predetermined moving rate according to the number of sheets loaded on the processing tray. The moving rate of the roller arm is reduced as the number of sheets loaded on the processing tray is increased. With this configuration, aligning property of even a wavy sheet can be suppressed from being deteriorated at sheet loading.

A sheet processing apparatus includes a conveying roller that conveys a sheet, a processing tray on which the sheet from the conveying roller is loaded, a reference stopper provided at one end of the processing tray, a return paddle having an elastic piece for transferring the sheet from the conveying roller to the reference member, and a roller arm that moves the return paddle in the sheet thickness direction at a predetermined moving rate according to the number of sheets loaded on the processing tray. The moving rate of the roller arm is reduced as the number of sheets loaded on the processing tray is increased. With this configuration, aligning property of even a wavy sheet can be suppressed from being deteriorated at sheet loading.

A thick document conveying device includes a paper pickup mechanism. The paper pickup mechanism has a pick roller base, a pick roller axle, a pick roller, a switching assembly, a first universal coupling, a driving mechanism, a second universal coupling, a bearing and a gear. The pick roller axle and the pick roller are located in the pick roller base. The switching assembly is located under the pick roller base. The first universal coupling is connected to the pick roller axle. The driving mechanism is sleeved on the first universal coupling. The second universal coupling is connected to the driving mechanism. The bearing is connected to the driving mechanism. The gear is connected to the bearing. As described above, both a thick document and a thin document can be adapted.