Abstract: An automatic document feeder including an automatic sheet winding device and an exposure device. The automatic sheet winding device includes a rotary drum and a sheet clamping device for clamping the original sheet wound around a circumferential face of the rotary drum such that a sheet clamping region and an exposure region on the circumferential face of the rotary drum are only slightly circumferentially spaced from each other.

Abstract: An automatic document feeder including an automatic sheet winding device and an exposure device. The automatic sheet winding device includes a rotary drum and a sheet clamping device for clamping the original sheet wound around a circumferential face of the rotary drum such that a sheet clamping region and an exposure region on the circumferential face of the rotary drum are circumferentially spaced from each other.

Abstract: Described is an automatic sheet winding and discharging device which includes of the following: a rotary drum for winding a sheet onto it; a sheet holding device provided on the circumferential surface of the rotary drum to sandwich the tip-end of the wound-up sheet; a sheet holding roller unit provided in the vicinity of the sheet discharger unit for pressing the sheet wound onto the rotary drum surface; and a device for allowing the sheet-holding roller unit to either come into contact with or separate from the surface of the rotary drum in conjunction with the operations for automatically winding and discharging a sheet onto and from the surface of the rotary drum.

Abstract: An automatic sheet-like winding and outputting apparatus with a drum for mounting a sheet-like member, a first claw for catching the front edge of the sheet-like member, a second claw for gripping the sheet-like member in cooperation with the first claw, and a cam member for driving the first and second claws in accordance with the rotation of the drum. The second claw is also operated to separate the front edge of the sheet-like member from the drum. A sheet pressure member is further provided for pressing the sheet-like member toward the surface of the drum thereby pressing the sheet-like member in close contact with that surface.

Abstract: A sheet winding and discharging device which includes a drum rotatably mounted in the device for winding a sheet therearound, sheet feeding members for feeding the sheet to the drum, a pair of sheet detecting sensors for detecting the length of the sheet to be fed, a pair of claw members mounted on the drum for holding the sheet which is fed to the drum and control members for controlling the movement of the claw members, the control members having a function for discharging the sheet without winding it around the drum in case that the sheet has a length more than the predetermined length.