Abstract: A light beam scanning apparatus that causes a beam generated by a light source to scan corresponding to recording direction along a photosensitive medium by rotating polygonal mirrors, wherein to form a latent image on the photosensitive medium, comprising a first polygonal mirror that rotates at a first velocity, a second polygonal mirror that rotates at a second velocity different from the first velocity, and a controller that carries out image formation by selectively using the first polygonal mirror and the second polygonal mirror.

Abstract: The developer replenishment apparatus includes a first developer container for accommodating the developer for replenishment, a first conveyance member disposed in the first developer container to discharge the developer for replenishment through a first opening of the first developer container, a second developer container for receiving the developer for replenishment discharged from the first opening, an agitating member disposed in the second developer container to agitate the developer for replenishment, a second conveyance member disposed in the second developer container to discharge the developer for replenishment through a second opening of the second developer container toward the developing apparatus, and a driving device which does not drive the second conveyance member but drives the agitating member when driving the first conveyance member. The bulk density of the developer is thereby stabilized to make possible replenishment with the developer at high accuracy.

Abstract: An image reading apparatus reads an image from a document being simultaneously fed by the apparatus. A document feeder unit feeds the document on a original plate. A first image reading unit reads an image from the fed document at a first document-read position on the original plate. A second image reading unit reads an image from the fed document at a second document-read position located at a predetermined distance from the first document-read position in a document feeding direction. An abnormal pixel detection unit detects abnormal pixels resulting from rubbish moved between the first document-read position and second document-read position on the original plate together with the document.

Abstract: The developer replenishment apparatus includes a first developer container for accommodating the developer for replenishment, a first conveyance member disposed in the first developer container to discharge the developer for replenishment through a first opening of the first developer container, a second developer container for receiving the developer for replenishment discharged from the first opening, an agitating member disposed in the second developer container to agitate the developer for replenishment, a second conveyance member disposed in the second developer container to discharge the developer for replenishment through a second opening of the second developer container toward the developing apparatus, and a driving device which does not drive the second conveyance member but drives the agitating member when driving the first conveyance member. The bulk density of the developer is thereby stabilized to make possible replenishment with the developer at high accuracy.

Abstract: A sheet conveying apparatus has a conveyor for conveying a sheet to a prescribed position, a pair of reverse-discharge rotating members capable of rotating forward and reverse for feeding the sheet to the conveyor by switchback and an electricity removal unit for removing electricity from the conveyed sheet. The switchback serves to feed a sheet having a maximum conveyable length from the pair of reverse-discharge rotating members to the conveyor and the electricity removal unit is arranged downstream in a sheet discharging direction from a cross over position fro a front edge of the sheet and a back edge of the sheet during discharge of the sheet, and at a downstream side to the sheet discharging direction the pair of reverse-discharge rotating members again.

Abstract: This present invention provides an image reading apparatus aiming at improving its operability while saving the cost and an image forming apparatus provided with the same. Sponges for pressing a pressing plate against a platen glass are constituted of nine sponges. Then, restoration forces Fa to Fc generated when sponges on a front side of a document feeding apparatus far from a fulcrum shaft of a hinge unit are crushed are set smaller than restoration forces Fg to Fi generated when sponges on a deep side of the document feeding apparatus near the fulcrum shaft 45 of the hinge unit are crushed.

Abstract: A pharmaceutical composition comprises the sequence of SEQ ID NO:s 3-5 or pharmaceutically equivalent sequences. Methods employing the pharmaceutical compositions include treatments to increase angiogenesis, to stimulate HIF-1? function, to treat hypoxia-related conditions, and to maintain normal cell functions under hypoxia.

Abstract: This present invention provides an image reading apparatus aiming at improving its operability while saving the cost and an image forming apparatus provided with the same. Sponges for pressing a pressing plate against a platen glass are constituted of nine sponges. Then, restoration forces Fa to Fc generated when sponges on a front side of a document feeding apparatus far from a fulcrum shaft of a hinge unit are crushed are set smaller than restoration forces Fg to Fi generated when sponges on a deep side of the document feeding apparatus near the fulcrum shaft 45 of the hinge unit are crushed.

Abstract: An image reading apparatus including: a supply device for supplying sheets to a reading position, a platen glass plate in the reading position, a platen roller opposed to the platen glass plate, a reading device for exposing a sheet on the platen glass plate to read an image on the sheet, and a white guide member upstream of the platen roller in the transporting direction, wherein a portion of the guide member closest to the platen roller is on the platen roller side with respect to a plane which includes the point in the outer periphery of the platen roller closest to the platen glass plate and which is parallel to the platen glass plate, and wherein the longitudinal length of the guide member is the same as or larger than the width of the range of the reading device.

Abstract: The present invention is to provide an image reading apparatus reading image information of an original while moving the original on an original base plate comprising: a transport rotary member provided opposite the original base plate to transport the original; a supporting member that supports the transport rotary member to be rotatable; and a gap forming section provided in the supporting member to form a gap between the transport rotary member and the original base plate, wherein the transport rotary member and the supporting member each have a high reflectance surface condition.

Abstract: The present invention relates to an image reading apparatus comprising a conveying means for conveying a sheet to a reading position; a platen glass guiding the sheet conveyed at the reading position; a reading apparatus for reading through the platen glass an image on the sheet conveyed at the reading position; a sheet guide member disposed on a side opposite to the reading device with respect to the platen glass for forming a small gap with the platen glass; and a driving means for moving the reading device. The drive device can move the reading device to a main reading position for reading operation at a position at which the sheet conveyed to the reading position is in contact with the platen glass and to at least one sub reading position for reading operation at a position at which the sheet conveyed to the reading position is not in contact with the platen glass.

Abstract: The present invention relates to a sheet conveying apparatus comprising a conveying means for conveying a sheet to a prescribed position, a pair of reverse-discharge rotating members capable of rotating forward and reverse for feeding the sheet to the conveying means by switchback and

Abstract: A sheet conveying apparatus has a conveyor for conveying a sheet to a prescribed position, a pair of reverse-discharge rotating members capable of rotating forward and reverse for feeding the sheet to the conveyor by switchback and an electricity removal unit for removing electricity from the conveyed sheet. The switchback serves to feed a sheet having a maximum conveyable length from the pair of reverse-discharge rotating members to the conveyor and the electricity removal unit is arranged downstream in a sheet discharging direction from a cross over position for a front edge of the sheet and a back edge of the sheet during discharge of the sheet, and at a downstream side to the sheet discharging direction of the pair of reverse-discharge rotating members.

Abstract: The present invention relates to a sheet conveying apparatus comprising a conveying means for conveying a sheet to a prescribed position, a pair of reverse-discharge rotating members capable of rotating forward and reverse for feeding the sheet to the conveying means by switchback and an electricity removal means for removing electricity from the conveyed sheet. The switchback serves to feed a sheet having a maximum conveyable length from the pair of reverse-discharge rotating members to the conveying means and the electricity removal means is arranged nearer toward a sheet discharging direction than a cross over position for a front edge of the sheet and a back edge of the sheet during discharge of the sheet after having passed the prescribed position, and passed the pair of reverse-discharge rotating members again.