Abstract: An image forming apparatus comprises a tray, a conveyor, a detector and a movement mechanism. The tray accommodates at least one document. The conveyor conveys the document placed on the tray. The detector detects that the document is placed on the tray. The movement mechanism moves the tray from a first position to a second position closer to the conveyor than the first position based on the detection that the document is placed on the tray, and after moving the tray from the first position to the second position, moves the tray to the first position based on a setting of a mixed stacking mode in which mixing of the documents with different sizes on the tray is permitted.

Abstract: An image forming apparatus comprises a tray, a conveyor, a detector and a movement mechanism. The tray accommodates at least one document. The conveyor conveys the document placed on the tray. The detector detects that the document is placed on the tray. The movement mechanism moves the tray from a first position to a second position closer to the conveyor than the first position based on the detection that the document is placed on the tray, and after moving the tray from the first position to the second position, moves the tray to the first position based on a setting of a mixed stacking mode in which mixing of the documents with different sizes on the tray is permitted.

Abstract: An image forming apparatus comprises a tray, a conveyor, a detector and a movement mechanism. The tray accommodates at least one document. The conveyor conveys the document placed on the tray. The detector detects that the document is placed on the tray. The movement mechanism moves the tray from a first position to a second position closer to the conveyor than the first position based on the detection that the document is placed on the tray, and after moving the tray from the first position to the second position, moves the tray to the first position based on a setting of a mixed stacking mode in which mixing of the documents with different sizes on the tray is permitted.

Abstract: An image forming apparatus comprises a tray, a conveyor, a detector and a movement mechanism. The tray accommodates at least one document. The conveyor conveys the document placed on the tray. The detector detects that the document is placed on the tray. The movement mechanism moves the tray from a first position to a second position closer to the conveyor than the first position based on the detection that the document is placed on the tray, and after moving the tray from the first position to the second position, moves the tray to the first position based on a setting of a mixed stacking mode in which mixing of the documents with different sizes on the tray is permitted.

Abstract: Certain embodiments provide an image reading apparatus including: a monochrome CCD sensor including a first photo-diode array; plural color CCD sensors each including a second photodiode array; an AD converter configured to apply analog-to-digital conversion to each of analog outputs from the second photodiode array and the first photodiode array; a delay processing unit configured to delay at least one of color image data of plural colors from the AD converter and interpolate, with delayed any one or more of the color image data, a blank of image data that is to be read on a line in a sub-scanning direction; and an inter-line correction unit configured to correct, by the intervals and a set reduction magnification, a positional deviation in the sub-scanning direction between the monochrome image data and the color image data, respective timings of which are aligned on the line by the delay processing unit.

Abstract: Certain embodiments provide an image reading apparatus including: a monochrome CCD sensor including a first photo-diode array; plural color CCD sensors each including a second photodiode array; an AD converter configured to apply analog-to-digital conversion to each of analog outputs from the second photodiode array and the first photodiode array; a delay processing unit configured to delay at least one of color image data of plural colors from the AD converter and interpolate, with delayed any one or more of the color image data, a blank of image data that is to be read on a line in a sub-scanning direction; and an inter-line correction unit configured to correct, by the intervals and a set reduction magnification, a positional deviation in the sub-scanning direction between the monochrome image data and the color image data, respective timings of which are aligned on the line by the delay processing unit.

Abstract: A fixing apparatus for fixing visible images formed on a recording medium has a heat roller having a heating member in the inner portion of the heat roller, and a flat plate-like elastic member forming a nip in contact with the heat roller and capable of exerting a pressure at the nip portion by an elastic stress, the recording medium being fed into the nip portion. According to the fixing apparatus and the fixing method using this apparatus, since a pressure roller is not necessary, the system can be simplified, which leads to miniaturization of the overall fixing apparatus, reduction of overall weight and cost reduction.

Abstract: A process for producing a metal wire for use as a reinforcement of rubber products, in which the step of drawing a steel wire is preceded by a preliminary treatment that includes the step of smoothing the surface of the steel wire by electropolishing and the step of forming on the smoothed surface of the steel wire a coating of any one metal selected from the group consisting of copper, zinc, a copper-zinc binary alloy, and a ternary alloy which is composed of copper, zinc and third element selected from among nickel, cobalt, tin and iron.

Abstract: In an inductive radio control system for a vehicle, data transmission between a vehicle which travels along a predetermined route and a ground operation control unit is performed by inductive radio means in such a manner that one of the loop antennas discretely arranged along the predetermined route is coupled to a corresponding transmitter/receiver in accordance with the traveling position of the vehicle. The number of transmitters/receivers is the same as the maximum number of operating vehicles.

Abstract: Radiation-shielding transparent material comprising an aqueous solution of thallium formate with or without thallium malonate, the solution having a density of 2.5 to 4.3 g/cm.sup.3, a radiation length of 3.8 to 1.9 cm, and a transmission of not less than 93% for light of 400 nm wavelength. The material is produced by deoxidizing thallium formate and dissolving the deoxidized thallium formate in deoxidized distilled water.

Abstract: An enzyme being capable of lysing cells of dental caries-inducing microorganisms and a method for producing the same by cultivating a microorganism belonging to the genus Streptomyces, especially wild type strains of Streptomyces diastatochromogenes, Streptomyces farinosus, Streptomyces globisporus and Streptomyces griseus var. H-402, compositions for preventing and treating dental caries containing the said enzyme and methods for preventing and treating dental caries.