Abstract: A laser scanning unit includes a first light source, a second light source, a scanning portion, a light detection portion, a timing control portion, and a light source control portion. The scanning portion is configured to cause light emitted from the first light source and the second light source to be scanned. The light detection portion is configured to detect the light that is scanned by the scanning portion. The timing control portion is configured to control a timing of writing an electrostatic latent image according to a timing of light detection by the light detection portion. The light source control portion is configured to: cause the light detected by the light detection portion to be emitted from the first light source in the first mode; and cause the light detected by the light detection portion to be emitted from the second light source in the second mode.

Abstract: A laser scanning unit includes a first light source, a second light source, a scanning portion, a light detection portion, a timing control portion, and a light source control portion. The scanning portion is configured to cause light emitted from the first light source and the second light source to be scanned. The light detection portion is configured to detect the light that is scanned by the scanning portion. The timing control portion is configured to control a timing of writing an electrostatic latent image according to a timing of light detection by the light detection portion. The light source control portion is configured to: cause the light detected by the light detection portion to be emitted from the first light source in the first mode; and cause the light detected by the light detection portion to be emitted from the second light source in the second mode.

Abstract: An electronic device includes an operation panel, an electric power control circuit, an operation confirming circuit, an electric power mode switching circuit, a human body detecting circuit, and a cycle changing circuit. The electric power control circuit switches a plurality of electric power supply modes including a standby mode and a low electric power consumption mode that uses less electric power consumption amount than the standby mode. The operation confirming circuit periodically confirms an operation to the operation panel in the low electric power consumption mode. The electric power mode switching circuit causes the electric power control circuit to switch the electric power supply mode when the operation confirming circuit detects the operation to the operation panel. The cycle changing circuit changes an operation confirmation cycle by the operation confirming circuit corresponding to a detection state of the human body detecting circuit.

Abstract: An image forming apparatus includes an exposing section, a pulse generating section, a frequency storing section, an emission control section, a smoothing section, and a driving-current generating section. The pulse generating section generates a periodic pulse signal indicating light amount of light beam emitted by a light source of the exposing section. The frequency storing section stores in advance a plurality of frequencies of the pulse signal. The emission control section selects, in the rendering of each main scanning line, any one of the plurality of frequencies and instructs the pulse generating section to generate the pulse signal having the selected frequency. The smoothing section smoothes the pulse signal generated by the pulse generating section according to the instruction of the emission control section and generates analog signal. The driving-current generating section generates driving current for the light source of the exposing section on the basis of the analog signal.

Abstract: Image forming apparatus includes elements as follows. Light-amount storing section stores, in the main scanning line divided into a plurality of blocks, light amounts of a light beam irradiated on the blocks. Change-data storing section stores a plurality of change data items set in the vicinity of each of block boundaries of the plurality of blocks. The plurality of change data items are used to cope with each of a plurality of events that are likely to affect the image quality in the vicinity of the block boundary. Irradiation control section selects, out of the plurality of change data items, change data for coping with an event selected out of the plurality of events and instructs Pulse generating section to generate, in the vicinity of the block boundary, pulse signal from which analog signal indicating a change in a value represented by the selected change data is obtained.

Abstract: An image forming apparatus includes a photosensitive body, an exposure unit, a pulse generating unit, a smoothing unit, a drive current generating unit, and a second emitting control unit. The exposure unit includes a light source for emitting a light beam, and causes the light beam emitted from the light source to perform scanning in a main scanning direction, thereby drawing a main scanning line on the photosensitive body. The second emitting control unit causes the light source to emit the light beam, in an APC period of automatically controlling the light quantity of the light beam, by causing the pulse generating unit to generate a pulse signal having a duty ratio of 100 percent, causing the smoothing unit to smooth the pulse signal thereby generating an analog signal, and causing the drive current generating unit to generate a drive current based on the analog signal.

Abstract: Image forming apparatus includes elements as follows. Light-amount storing section stores, in the main scanning line divided into a plurality of blocks, light amounts of a light beam irradiated on the blocks. Change-data storing section stores a plurality of change data items set in the vicinity of each of block boundaries of the plurality of blocks. The plurality of change data items are used to cope with each of a plurality of events that are likely to affect the image quality in the vicinity of the block boundary. Irradiation control section selects, out of the plurality of change data items, change data for coping with an event selected out of the plurality of events and instructs Pulse generating section to generate, in the vicinity of the block boundary, pulse signal from which analog signal indicating a change in a value represented by the selected change data is obtained.

Abstract: A method of manufacturing a glass substrate for an optical disk using a press-mold formed of a super-hard material and having a surface of a prescribed roughness. A track pattern is formed in the surface of the glass substrate by inserting the substrate and a stamper containing track patterns into the press mold and pressing the substrate against the stamper. A film-like thermoplastic synthetic resin is disposed between the glass substrate and the stamper, and the glass substrate is heated to the distortion temperature point of glass.

Abstract: A method of manufacturing a glass substrate for an optical disk using a press-mold formed of a super-hard material and having a surface of a prescribed roughness. A track pattern is formed in the surface of the glass substrate by inserting the substrate and a stamper containing track patterns into the press mold and pressing the substrate against the stamper. A film-like thermoplastic synthetic resin is disposed between the glass substrate and the stamper, and the glass substrate is heated to the distortion temperature point of glass.

Abstract: An adhesive-tape dispenser of this invention comprises a tape roll holder, a dispenser housing for accommodating the tape roll holder, and a tape-leading and cutting means. The tape-leading and cutting means enables to separate the suitable length of a tape from a tape roll and to easily adhere the separated tape to an objective material, before (almost at the same time) or after the tape is cut off. Furthermore, a tape separator mounted on the tape roll holder enables multi-use for various adhesive tapes such as a non-protected single-side adhesive tape in roll, and a double-side adhesive tape in roll, of which one or both adhesive surfaces are protected by a peeling tape.

Abstract: A method of manufacturing a 1-inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using nitrogen ions is performed on the surface of the mold, after which ion implantation using palladium ions, platinum ions, and carbon ions is performed in the order given. Finally, the surface of the mold is coated with a graphite or amorphous diamond-like carbon coating.

Abstract: A method of manufacturing a 2-5 inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using nitrogen ions is performed on the surface of the mold, after which ion implantation using palladium ions, platinum ions, and carbon ions is performed in the order given. Finally, the surface of the mold is coated with a graphite or amorphous diamond-like carbon coating.

Abstract: A surface reforming method of a metal product, wherein a platinum film is formed on the surface of a metal product by injecting onto that surface a nitrogen ion, a carbon ion and a platinum ion in that order, and then injected onto said platinum film a second platinum ion with the aim of improving the exfoliation resistance of the platinum film being formed on the metal surface, and the abrasion resistance of the surface.

Abstract: In advance of carbon coating, by injecting ion into the shaped surface of metallic mold made of super-hard materials, it becomes possible to increase the adhesiveness of the carbon coat onto the mold material, and to increase the life of the mold. In a metallic pressing mold with the required flatness secured by carbon coating on the surfaces, it is characterized in that the surface layer of the shaped surfaces is modified by ion injection in advance of carbon coating.

Abstract: In advance of carbon coating, by injecting ions into the shaped surface of a metallic mold made of super-hard materials, it becomes possible to increase the adhesiveness of the carbon coat onto the mold material, and to increase the life of the mold. In a metallic pressing mold with the required flatness secured by carbon coating on the surfaces, the surface layer of the shaped surfaces is modified by ion injection in advance of carbon coating.