Abstract: Disclosed is an image forming apparatus including: an ejection section including an ejection roller to eject a sheet from a first sheet passing path to a sheet ejection port and a reverse roller to reverse a transport direction of a sheet transported along a second sheet passing path, the ejection roller and the reverse roller being placed close to each other and close to the sheet ejection port; and a switching lever switches the transport destination of the sheet between the first and the second sheet passing paths for transporting the sheet to the ejection roller and to the reverse roller, respectively. A moving trajectory of a sheet transported along the first sheet passing path between the ejection roller and the switching lever is substantially identical to a moving trajectory of a sheet transported along the second sheet passing path between the reverse roller and the switching lever.

Abstract: Disclosed is an image forming apparatus that forms an image on one side of a sheet and then forms an image on the other side of the sheet. A single-sided sheet passing path transports a sheet housed in a sheet-feeding tray to the image forming section, and a double-sided sheet passing path reverses a sheet with an image formed on one side and causes the sheet to join the single-sided sheet passing path. The single-sided sheet passing path is formed so as to include a second interval which includes a registration sensor placed near a joining position of the single-sided and double-sided sheet passing paths in the double-sided sheet passing path as one end point and in which a sheet draws a moving trajectory substantially identical to a moving trajectory of a sheet in a first interval extending toward an upstream side in the transport direction of the sheet.

Abstract: Disclosed is an image forming apparatus including: an ejection section including an ejection roller to eject a sheet from a first sheet passing path to a sheet ejection port and a reverse roller to reverse a transport direction of a sheet transported along a second sheet passing path, the ejection roller and the reverse roller being placed close to each other and close to the sheet ejection port; and a switching lever switches the transport destination of the sheet between the first and the second sheet passing paths for transporting the sheet to the ejection roller and to the reverse roller, respectively. A moving trajectory of a sheet transported along the first sheet passing path between the ejection roller and the switching lever is substantially identical to a moving trajectory of a sheet transported along the second sheet passing path between the reverse roller and the switching lever.

Abstract: With a small and simple constitution, a three-dimensional subject and a sheet document can be imaged. There are provided an image forming unit (110) for forming an image, an top face sheet ejecting unit (130) for ejecting a paper sheet (P) onto the top face of the device body (101), a top face ejected sheet tray (150) capable of receiving an ejected paper sheet (P) and openable/closable with respect to the device body (101), a platen glass (160) on which a subject is placed, a two-dimensional sensor (170) provided to the top face ejected sheet tray (150) to image the subject placed on the platen glass (160), and a manual feed unit (210) for transporting sheet originals (S) one by one and passing an original through an original information read section. The two-dimensional sensor (170) is so provided that the image of the sheet original appearing in the original information read section is formed on the partial area of the imaging area (170a).

Abstract: The present invention provides a developing apparatus to be provided in a quick start up electrophotographic image forming apparatus that can efficiently prevent generation of unevenness by a screw pitch in a short period of time. The developing apparatus rotates a developer transporting screw so as to transport and supply a developer to a developer bearing member, and develops a latent image formed on an image bearing member by the developer. The developer transporting screw includes a vane winding around a rotation shaft in a spiral form. A vane surface on other side of a developer transport direction of the vane includes two planes having different angles with a rotational center line of the rotation shaft.

Abstract: An image forming apparatus with three-dimensional object imaging capability is provided that is compact, has a small footprint, and is easy to use. This apparatus has a top-surface paper ejection unit (130) that ejects paper P on which an image has been formed by an image forming unit (110) onto the top surface of the apparatus body (101); a top-surface paper ejection tray (150) that can be opened and closed with respect to the apparatus body (101) and receives paper P ejected by the top-surface paper ejection unit (130); an object placement platform (160) whose object placement surface (161), on which an object is placed, is exposed by opening the top-surface paper ejection tray (150); and a two-dimensional sensor (170) for imaging an object placed on the object placement platform (160). The apparatus has a configuration in which the top-surface paper ejection tray (150), when open, serves as a support for the imaging section.

Abstract: The present invention provides a developing apparatus to be provided in a quick start up electrophotographic image forming apparatus that can efficiently prevent generation of unevenness by a screw pitch in a short period of time. The developing apparatus rotates a developer transporting screw so as to transport and supply a developer to a developer bearing member, and develops a latent image formed on an image bearing member by the developer. The developer transporting screw includes a vane winding around a rotation shaft in a spiral form. A vane surface on other side of a developer transport direction of the vane includes two planes having different angles with a rotational center line of the rotation shaft.

Abstract: A concave portion is formed on a surface of a connector body, and each end of first contact terminals and each end of second contact terminals are extended respectively to mutually opposite walls of the concave portion. When a countermeasure against EMI is necessary, an array which contains filters is fitted to the concave portion to insert the filters between the first contact terminals and the second contact terminals. When the countermeasure against EMI is not necessary, a conductive array which contains conductive lines is fitted to the concave portion instead of the filter array.