Abstract: An image forming apparatus includes: a first image forming unit which forms a first image on a first recording medium with a first material that is not thermally decolorizable; a second image forming unit which forms a second image on a second recording medium with a second material that is thermally decolorizable; a fixing device which is on a common carrying path shared by the first recording medium and the second recording medium and fixes the first image to the first recording medium; and a controller which controls the fixing device so that a temperature of the fixing device is lower than a decolorizing temperature of the second material when the second recording medium reaches the fixing device.

Abstract: Disclosed is a vehicular environment estimation device capable of accurately estimating a travel environment around own vehicle on the basis of a predicted route of a mobile object or the like, which is moving in a blind area. A vehicular environment estimation device that is mounted in the own vehicle detects a behavior of another vehicle in the vicinity of the own vehicle, and estimates a travel environment, which affects the traveling of another vehicle, on the basis of the behavior of another vehicle. For example, the presence of another vehicle, which is traveling in a blind area, is estimated on the basis of the behavior of another vehicle. Therefore, it is possible to estimate a vehicle travel environment that cannot be recognized by the own vehicle but can be recognized by another vehicle in the vicinity of the own vehicle.

Abstract: An image forming apparatus spools normal print requests received from external equipment as normal print jobs which are sequentially executed by a printer, spools a private print request received from an external equipment in a spooler as a private print job executed by a printer in response to an instruction by a user who has requested the private print, and changes a normal print job in an execution waiting state of the user which is spooled in the spooler to a private print job of the user in response to a request from the user authenticated by a user authenticating portion.

Abstract: A fixing device of the invention detects a temperature of plural positions of a heat roller by a multiple non-contact temperature sensor at the same time and controls the temperature of plural heat source members. The non-contact temperature sensor and a contact temperature sensor detect the temperature of the same position. According to the detection result, maintenance is performed or a temperature conversion table is corrected, the non-contact temperature sensor is maintained with high precision, and the heat roller is controlled the temperature with high precision.

Abstract: A sheet handling apparatus includes a first module arranged along a sheet conveyance route from the upstream to the downstream thereof, and a second module arranged adjacent to the first module, wherein the first module including a take-out part to take out sheets one by one from a bundle of sheets fed into a supply part; a first conveyance route to convey the taken out sheets with the take-out part; a discriminating device to discriminate category of the sheets conveyed along the first conveyance route; and a first control part to transmit destination information and category information of the sheet discriminated by the discriminating device and to execute a conveyance control to the sheet residing along the first conveyance route, and wherein the second module including: a second conveyance route to convey further the sheets conveyed from the first module; a first stacking device to stack the sheet conveyed along the second conveyance route based on the destination information and category information rece

Abstract: A radiodiagnostic apparatus includes a data collection unit, a primary correction unit, a body contour detection unit, a secondary correction unit, and a reconstruction unit. The primary correction unit calculates a plurality of primary extrapolation expression candidates for correcting second projection data so as to obtain third projection data candidates formed from the second projection data and a plurality of primary extrapolation expression candidates and for obtaining third projection data from the plurality of third projection data candidates.

Abstract: A cleaning device in an image forming apparatus, which performs cleaning, includes a roll-shaped electrically conductive brush grounded via a varistor (non-linear resistor element), a flicker metal rod which is put in pressure contact with the electrically conductive brush and connected to have a potential equal to a potential of the electrically conductive brush, and a cleaning blade formed of an elastic material.

Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.

Abstract: A community server categorizes and accumulates messages exchanged by users on a virtual community for respective topics. The community server includes a user access limiting control unit. The user access limiting control unit determines user's access authority of each client terminal for each community as an access destination. For this purpose, the user access limiting control unit manages a community type indicating the open level of each community, and a member type indicating the participation attribute of each user to the virtual community, using community management information, and limits access to a community as an access destination for each client terminal on the basis of the combination of the community type and member type.

Abstract: A community server categorizes and accumulates messages exchanged by users on a virtual community for respective topics. Since the community server includes a thread moving unit, i.e., a mechanism that allows an administrator to move a thread as a set of messages posted to a given virtual community to another virtual community, each user can utilize collected and accumulated knowledge via his or her desired interface. Since the administrator can move a thread between communities, virtual communities can be combined or divided.