There is disclosed a driver including an elongate shaft and at least one drive assembly. The drive assembly includes a housing which has an orifice for receiving the elongate shaft, and a drive wheel which is located at least partially within the housing. The drive wheel has a bore with a cross-section shaped so that the internal surface of the bore contacts the circumference of elongate shaft when the elongate shaft is inserted into the bore. The bore has at least two fulcrum surfaces so that the drive wheel is pivotable about the elongate shaft. The housing is slideable relative to the elongate shaft.

A printing apparatus includes: a printing unit configured to perform printing on a sheet; a driving unit configured to apply a rotational force to a roll member that is rotatably held; and a pressing unit having a roller configured to apply a pressing force to an outer peripheral surface of a roll sheet wound around the roll member, wherein the pressing unit changes the pressing force during a sequence in which the driving unit applies a rotational force to the roll member and a sheet that has passed through the printing unit is wound.

An apparatus and method for supporting sheet material, comprising a frame including a first arm and a second arm, the second arm in communication with the first arm to support a roll of the sheet material there-between, and a drive roller for transporting the sheet material from the roll. The first arm and the second arm automatically resize the frame corresponding to the dimensions of the roll of the sheet material to provide constant tension in the roll of sheet material by controlling a position of the roll of the sheet material.

An apparatus and method for supporting sheet material, comprising a frame including a first arm and a second arm, the second arm in communication with the first arm to support a roll of the sheet material there-between, and a drive roller for transporting the sheet material from the roll. The first arm and the second arm automatically resize the frame corresponding to the dimensions of the roll of the sheet material to provide constant tension in the roll of sheet material by controlling a position of the roll of the sheet material.

A roll paper holder is provided which rotatably holds belt-like paper to be conveyed towards a printing section when a roll of paper is obtained by winding the paper on an upstream side in a conveyance direction with respect to the printing section. The roll paper holder includes a side wall section in contact with both side ends of the roll of paper in a width direction to prevent the roll of paper from moving in the width direction. The holder further includes at least one protrusion located outside a range where it can contact with the side end of the roll paper to be held having the largest diameter in the side wall section. The at least one protrusion is configured to protrude by a predetermined dimension from a portion contacting with the side end to control a position of the paper in the width direction.

A cassette type tape feeder including a tape feeding device that feeds a component supply tape to a component pickup position from a reel; a cover tape drawing-in device that peels off a cover tape from the component supply tape forward of the component suction position in accordance with a feeding operation of the component supply tape, and draws in the cover tape in a direction opposite to a feeding direction of the component supply tape; and a cover tape collection case that collects the cover tape drawn in by the cover tape drawing-in device. The cover tape collection case is configured of a fixing case section fixed to a cassette case, and a movable case section which expands capacity of the cover tape collection case by being displaced in a direction of the vacant space in the reel corresponding to an increase in collection amount of the cover tape. The movable case section is biased in a reducing direction by a torsion coil spring.

A cassette type tape feeder including a tape feeding device that feeds a component supply tape to a component pickup position from a reel; a cover tape drawing-in device that peels off a cover tape from the component supply tape forward of the component suction position in accordance with a feeding operation of the component supply tape, and draws in the cover tape in a direction opposite to a feeding direction of the component supply tape; and a cover tape collection case that collects the cover tape drawn in by the cover tape drawing-in device. The cover tape collection case is configured of a fixing case section fixed to a cassette case, and a movable case section which expands capacity of the cover tape collection case by being displaced in a direction of the vacant space in the reel corresponding to an increase in collection amount of the cover tape. The movable case section is biased in a reducing direction by a torsion coil spring.

A substrate conveying device and a deposition apparatus are provided. The substrate conveying device includes a transmission shaft, a plurality of conveying rollers, and a plurality of bearings. The conveying rollers are configured to convey a substrate respectively. Each conveying roller is assembled to the transmission shaft via the corresponding bearing. Each bearing includes a stator and a rotator. Each conveying roller is fixed to the corresponding rotator. The stators are fixed to the transmission shaft. A magnetic repulsion force parallel to an axial direction of the transmission shaft exists between the stator and the rotator. The stator drives the rotator to rotate via a friction force generated by the magnetic repulsion force between the stator and the rotator.

A spool holder includes a cylinder defining a longitudinal axis and having an external surface on which a spool of wire may be supported. A first plate is positioned at a first end of the cylinder and a second plate is positioned at a second end of the cylinder. Both first and second plates have portions extending radially outward from the external surface of the cylinder. The first and second plates both have a perpendicular orientation relative to the longitudinal axis. The first and second plates restrict axial movement of the spool of wire therebetween. The first plate and cylinder are stationary relative to a mounting structure, while the second plate is configured to rotate with the spool of wire. A mechanism urges the second plate and, thus, the spool of wire toward the first plate, thereby regulating rotation of the spool of wire.

A conveying apparatus includes: a conveyor configured to convey a web while unwinding the web from a web roll; a brake configured to apply brakes to rotation of the web roll; and a controller configured to perform control to unwind the web from the web roll and convey the web with the conveyor while giving tension to the web by applying brakes to the rotation of the web roll using torque of the brake. The controller is configured to determine the torque of the brake during deceleration of the web to be a value depending on an inertial load of the web roll.