Abstract: A document conveying apparatus for a document processor has a pair of width restriction members for correctly positioning documents to be processed. The width restriction members are movable in the width direction of the document processor. First and second rack-and-pinion mechanisms are spaced apart in the document conveying direction and are interlocked so that the racks of both mechanisms move together in a synchronized manner. Each width restriction member is coupled to two of the racks that move in the same direction.

Abstract: A document conveying apparatus has a document pushing-down/adjusting mechanism disposed at an upper position on the downstream side of a document discharge port. The document pushing-down/adjusting mechanism acts on the rear end of the document on delivery after its rear end is substantially liberated from being nipped by a pair of document discharge rollers, forcibly pushes the rear end of the document down toward the upstream end position on the document-placing plate means, and holds the document for the document-placing plate means for a predetermined period of time.

Abstract: A paper feeder having a feed unit for dispensing paper from a paper containing unit and delivering the paper to a transport assembly. The feeder comprises a first guide portion for guiding the paper containing unit and a second guide portion for guiding the feed unit. The paper containing unit and the feed unit are slidably supported by the first guide portion and the second guide portion respectively individually.

Abstract: An overlapped-transfer preventing paper supply device in an image-forming apparatus includes an overlapped-transfer preventing member and a rotary paper supply member in an overlapped-transfer preventing portion. A sheet-returning member returns a sheet located in the vicinity of the overlapped-transfer preventing portion to a sheet source or supply and moves from a downstream side to an upstream side of the overlapped-transfer preventing portion. A drive operates in response to a sheet-returning signal to move the sheet-returning member in a sheet-returning direction. A sheet located in the vicinity of the overlapped-transfer preventing portion can be prevented from being damaged, and jamming due to such sheet can be prevented.

Abstract: An apparatus for the formation of images having a body of the apparatus provided with a corona charger, in which a corona wire is strung along a charging opening of the corona charger. An image-forming device is installed in the body of the apparatus. The device is removable from the body of the apparatus along the corona wire. The apparatus further includes a cleaning device that is attached to the end portion of the image-forming device opposite to the direction in which the image-forming device is pulled out of the body of the apparatus. The cleaning device touching the corona wire through the charging opening when the image-forming device moves along the corona wire and separating from the corona wire when the image-forming device is installed into the body of the apparatus.

Abstract: The present invention is of a paper transferring apparatus for a copying machine which consists of a pair of upper and lower resist rollers and a pair of upper and lower pre-transfer rollers located at a photoreceptor-drum side from these resist rollers, andthe upper roller out of the paired upper and lower resists rollers has a substantially larger roller diameter at the center part in the axial direction of the roller in comparison with that at the both ends, and the lower roller thereof has a uniform roller diameter throughout the roller, andthe upper roller out of the paired upper and lower pre-transfer rollers has a substantially smaller roller diameter at the center part in the axial direction of the roller in comparison with that at the both end parts, and the lower roller thereof has a uniform roller diameter throughout the roller.