A sheet handling apparatus includes: a transport path along which a sheet is transported; a first transport member disposed on one side of the transport path; and a second transport member disposed opposed to the first transport member with the transport path interposed therebetween. The first transport member and the second transport member are driven to rotate. The sheet is transported by the first transport member rotating with an outer peripheral surface thereof being in contact with a first face of the sheet, and by the second transport member rotating in a direction opposite to a rotation direction of the first transport member, with an outer peripheral surface thereof being in contact with a second face of the sheet different from the first face.

A winding device includes a winding portion that winds a continuous medium, a friction roller that contacts the continuous medium while the continuous medium is being fed to the winding portion and that applies friction resistance to the continuous medium, and a roller driving portion that causes the friction roller to rotate in a direction in which the continuous medium is fed, in which the roller driving portion includes a roller gear train that transmits rotation of a feed motor, which is input via a winding-portion gear train, to the friction roller.

An image reading apparatus, includes: a supply tray; a discharge tray; a conveyance guide; a reading sensor; a discharge unit, which includes a discharge opening to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth as the document supported by the paper feed tray is decreased, the fourth position being higher than the third position; a first drive source, which generates a drive force; a first rotation body, which moves the movable plate by transmitting the drive force from the first drive source to the movable plate; and a second rotation body, which moves the discharge unit by transmitting the drive force from the first drive source to the discharge unit, wherein a diameter of the first rotation body and a diameter of the second rotation body are different from each other.

An image reading apparatus includes a supply tray which supports sheets and includes a movable plate configured to move in correspondence to reduction in a number of the sheets, a discharge tray which is located below the supply tray; a discharge unit which has a discharge opening for discharging the sheet and moves from a lower position and a higher position in correspondence to reduction in the number of the sheets supported on the supply tray, a controller which controls movements of the movable plate and the discharge unit, and a sheet detection unit which detects whether the sheets supported on the discharge tray is lower than a predetermined height. The controller determines a timing to move the discharge unit from the higher position toward the lower position based on a detection result of the sheet detection unit.

With a cover in a closed position, a first internal gear and a first spur gear do not mesh with each other, and a second internal gear and a second spur gear do not mesh with each other. When the cover rotates by a predetermined angle around a first support shaft from the closed position, the first internal gear and the first spur gear start to mesh with each other. When the cover rotates by a predetermined angle around a second support shaft from the closed position, the second internal gear and the second spur gear start to mesh with each other.

An image reading apparatus, includes: a supply tray; a discharge tray; a conveyance guide; a reading sensor; a discharge unit, which includes a discharge opening to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth as the document supported by the paper feed tray is decreased, the fourth position being higher than the third position; a first drive source, which generates a drive force; a first rotation body, which moves the movable plate by transmitting the drive force from the first drive source to the movable plate; and a second rotation body, which moves the discharge unit by transmitting the drive force from the first drive source to the discharge unit, wherein a diameter of the first rotation body and a diameter of the second rotation body are different from each other.

In accordance with an embodiment, an image processing apparatus comprises a first opening and closing member, a second opening and closing member, a first tooth section, a second tooth section, and an intermediary tooth section. The first opening and closing member is opened and closed with respect to an apparatus main body with a first hinge as the center. The second opening and closing member is opened and closed with a second hinge arranged in the first opening and closing member as the center. The first tooth section comprises a plurality of teeth fixed coaxially with the first hinge. The second tooth section comprises a plurality of teeth supported coaxially with the second hinge. The intermediary tooth section is engaged with the first tooth section and the second tooth section between the first tooth section and the second tooth section.

A sheet conveying apparatus includes a rotation member unit, a supporting shaft and a moving shaft to support the rotation member unit, a locking unit to lock the moving shaft, and an engaged portion. The rotation member unit includes an engaging portion and a sheet conveyance rotation member held by the engaging portion. When the moving shaft is at a first position, the moving shaft and the supporting shaft support the rotation member unit. When the moving shaft is moved away from the supporting shaft to a second position at which the rotation member unit is not supported by the supporting shaft, the moving shaft is locked at the second position by the locking unit after moving from the first position to the second position, and the rotation member unit is held by the engaged portion in a state in which the engaging portion engages with the engaged portion.

The present invention relates to a web film movement compensating device for a web film movement compensation between continuous forward movement section and intermittent forward movement section comprising two guide rollers (1, 2) rotating freely in stationary positions between a continuous driving device (5) and an intermittent driving device (6), two compensation rollers (3, 4) rotating freely on two respective pivoting arms (7, 8) oscillating about pivot shafts (11, 12), an elastic element (9) connected to one of the pivoting arms to actuate the corresponding compensation roller to move away from the guide rollers, and a movement transmission mechanism including lever arms and transmission rods (13, 14, 15) transmitting an oscillating movement from one of the pivoting arms (7, 8) to the other. A web film (50) moved by the driving devices is supported on the guide rollers (1, 2) and on the compensation rollers (3, 4) forming a meander.

A drive transmission device includes a shaft supporting member attached to a drive frame. The shaft supporting member rotatably supports a driving shaft. The shaft supporting member includes two bearing surfaces for rotatably holding the driving shaft, where the two bearing surfaces are disposed so as to be on a straight line, and a boss portion having the center thereof located on the straight line for positioning the drive transmission device relative to the drive frame.