Abstract: A change necessity determination unit (12) determines necessity of change of a monitoring time interval of each performance item from a performance value of at least one performance item held by a performance value holding unit (11). A time interval computation unit (15) shortens a monitoring time interval of a performance item, for which the monitoring time interval is determined to need to be shortened by the change necessity determination unit (12), and extends a monitoring time interval of at least one performance item other than the performance item for which the monitoring time interval is determined to need to be shortened. A time interval update unit (16) updates the monitoring time interval held by the time interval holding unit (10), to the monitoring time interval of each performance item, which is computed by the time interval computation unit (15).

Abstract: A server device without a means for accessing an IC memory included in a data storage medium can check whether or not a data storage medium includes an IC memory. A portable optical disc medium (100) includes an IC memory (106) accessible through proximity wireless communication and a computer-readable recording part (101). The recording part (101) includes a user-data area (104) in which content data is recorded and a disc management information area (103) in which information for management of recording and reproducing the content data. In the disc management information area (103), medium identification information identifying the optical disc medium (100) and presence indication information indicating that the optical disc medium (100) includes presence of the IC memory (106) in a manner such that the presence indication information does not allow changing.

Abstract: To adjust the symmetry of a focus error signal, the symmetry of the focus error signal needs to be measured during upward and downward driving of an objective lens, which is performed at every varying setting of a signal correction gain value of the focus error signal, and such adjustment takes a long time. An optical disc device (100) measures a focus error signal before differentiation at a local maximum point and a local minimum point of a focus error signal using a prior-to-differentiation FE measurement unit (50), and calculates the symmetry of the S-shape of a focus error signal using a symmetry calculation unit (51), and performs balance adjustment based on the calculation result. The device with this structure adjusts the symmetry of a focus error signal at a high speed by requiring an upward and downward operation to be performed only once.

Abstract: An optical disc device comprises a spherical or coma aberration correction unit to pre-correct spherical or coma aberration occurring in the light beam, a focus or tracking detection unit operable to detect a focus or tracking error signal, and an FE or TE amplitude adjustment unit operable to adjust the signal amplitude of the focus or tracking detection unit to a specific value after the amount of spherical or coma aberration has been matched to a specific value by the spherical or coma aberration correction unit.

Abstract: An optical disc drive apparatus determines which one of a plurality of discs with different specifications has been mounted on the apparatus in a short time as well as in a safe manner without damaging information recorded on the disc. An optical disc apparatus 100 illuminates an optical disc 1 simultaneously with a first laser beam and a second laser beam that have been mixed by a laser beam mixing and separating unit. The second laser beam has a shorter wavelength than the first laser beam. An objective lens 29 focuses the first laser beam and the second laser beam in a manner that the first laser beam has a greater focal length than the second laser beam. An information recording surface of the optical disc 1 is first illuminated with the first laser beam having a long wavelength. This eliminates the risk of damaging the information recording surface of the optical disc 1.

Abstract: A semiconductor memory includes a semiconductor region, floating gate electrodes arranged in a matrix on the semiconductor region through a tunnel insulating layer, inter-gate insulating layers disposed only on the plurality of floating gate electrodes, respectively, control gate electrodes disposed on the plurality of inter-gate insulating layers, respectively, and isolation insulators extending between arrangements of the control gate electrodes along a column direction of the matrix, each of the isolation insulators penetrating into the semiconductor region so as to electrically isolate the inter-gate insulating layers from each other in the column direction.

Abstract: An optical disc device comprises a spherical or coma aberration correction unit to pre-correct spherical or coma aberration occurring in the light beam, a focus or tracking detection unit operable to detect a focus or tracking error signal, and an FE or TE amplitude adjustment unit operable to adjust the signal amplitude of the focus or tracking detection unit to a specific value after the amount of spherical or coma aberration has been matched to a specific value by the spherical or coma aberration correction unit.

Abstract: The optical disc apparatus comprises a disc motor (114) operable to rotate an optical disc (1), a traverse (111) operable to move an optical beam spot which is irradiated on an optical beam on the optical disc (1) to the radius direction of the optical disc (1), a linear velocity operation unit (117) operable to detect the linear velocity of the optical beam spot, a disc motor control unit (116) operable to control the disc motor (114) so that the linear velocity detected by the linear velocity operation unit (117) remains roughly invariable in an arbitrary radius location on the optical disc (1) when information recorded on the optical disc (1) is read out, a search control unit (121) and a location profile adjustment unit (118) operable to control a traverse (111) so as to prevent the linear velocity from decreasing to the permissible linear velocity or below when the optical beam spot is moved by the traverse (111).

Abstract: In a device for removing toner or similar substance deposited on a recording sheet or similar sheet, projections are formed on a back-up member and located at portions on which the rear of a separating member slide. While a sheet is passed through a pressing portion in contact with the separating member, the projections raise the rear of the separating member toward the surface of the sheet carrying the toner. Hence, even solitary particles of the substance adjoining relatively thick and large masses of the substance can contact the front of the separating member. Hence, the solitary particles are prevented from remaining on the sheet.

Abstract: In a method for removing toner or similar substance deposited on a recording sheet or similar sheet, projections are formed on a back-up member and located at portions on which the rear of a separating member slide. While a sheet is passed through a pressing portion in contact with the separating member, the projections raise the rear of the separating member toward the surface of the sheet carrying the toner. Hence, even solitary particles of the substance adjoining relatively thick and large masses of the substance can contact the front of the separating member. Hence, the solitary particles are prevented from remaining on the sheet.

Abstract: In a device for removing toner or similar substance deposited on a recording sheet or similar sheet, projections are formed on a back-up member and located at portions on which the rear of a separating member slide. While a sheet is passed through a pressing portion in contact with the separating member, the projections raise the rear of the separating member toward the surface of the sheet carrying the toner. Hence, even solitary particles of the substance adjoining relatively thick and large masses of the substance can contact the front of the separating member. Hence, the solitary particles are prevented from remaining on the sheet.

Abstract: In a method and an apparatus for removing an image forming substance such as toner from an image holding member such as a sheet of transfer paper, a liquid providing unit is constructed by plural coating devices such as three coating devices each having a coating roller, a restricting roller and a liquid container for liquid storage. The coating devices are arranged along a conveying path of the transfer paper sheet. A liquid is provided to the transfer paper sheet from both face sides thereof by using a mist generator, etc. in the liquid providing unit. The coating and restricting rollers are arranged such that no coating and restricting rollers come in contact with the transfer paper sheet so as not to restrict the transfer paper sheet. A surface of each of the coating and restricting rollers is desirably constructed such that this surface is hydrophilic. Another toner removing apparatus is also shown. A drive roller device for supporting an offset belt for conveying the transfer paper sheet is also shown.

Abstract: In a device for removing toner or similar substance deposited on a recording sheet or similar sheet, projections are formed on a back-up member and located at portions on which the rear of a separating member slide. While a sheet is passed through a pressing portion in contact with the separating member, the projections raise the rear of the separating member toward the surface of the sheet carrying the toner. Hence, even solitary particles of the substance adjoining relatively thick and large masses of the substance can contact the front of the separating member. Hence, the solitary particles are prevented from remaining on the sheet.

Abstract: An apparatus capable of surely removing a toner or similar image forming substance stably cohered to a sheet, and an apparatus for processing a sheet are disclosed. A liquid supply unit uniformly supplies a liquid to a toner carried on the sheet. The sheet infiltrated with the liquid is heated by a toner removing unit to have to the toner thereof softened. As a result, the toner adheres to the surface of an offset member implemented as a belt or a drum. The sheet containing the liquid therein is conveyed to the toner removing unit without creasing, breaking or folding.