A cam projection sliding in a cam slot of an arm causes the arm to proceed to an arm when a shutter is in the closed position or the open position and to recede from the arm when the shutter is sliding between the open position and the closed position. A spring is thereby considerably displaced, providing a satisfactory operation of the shutter.

An inkjet printer having at least one print head in which an aerodynamic element is placed before (e.g. in a transport direction) a recording medium (e.g. in the form of a sheet or page or plate) to reduce or avoid turbulences that may arise due to the relative motion between print head(s) and recording medium at an edge of the recording medium.

A cartridge is provided and includes tape-shaped magnetic recording medium; and cartridge memory; wherein cartridge memory includes communication unit that communicates with recording/reproducing device in state where cartridge is loaded on recording/reproducing device; storage unit; and control unit that stores, reads, and transmits information, wherein information includes manufacturing information of cartridge and adjustment information for adjusting a tension applied to the tape-shaped magnetic recording medium in a longitudinal direction of tape-shaped magnetic recording medium thereof, tape-shaped magnetic recording medium has a plurality of servo bands, and wherein a temperature expansion coefficient ? of the tape-shaped magnetic recording medium satisfies 6 ppm/? C.???8 ppm/? C.

The technology disclosed herein enables automatic implementation of a physical barrier to protect access to data on removable storage media. In a particular embodiment, a method provides determining that the item moved into a storage position using an automatic transfer mechanism and determining that a condition for protecting the item is satisfied. Upon determining that the condition is satisfied, the method provides implementing a physical barrier that prevents the automatic transfer mechanism from removing the item from the storage position.

Provided is a glass for a magnetic recording medium substrate or for a glass spacer for a magnetic recording/reproducing apparatus, in which the total content of Li.sub.2O, Na.sub.2O, K.sub.2O, B.sub.2O.sub.3, and ZnO (Li.sub.2O+Na.sub.2O+K.sub.2O+B.sub.2O.sub.3+ZnO) is in a range of 0 mol % or more and 3 mol % or less, the mole ratio of the total content of Al.sub.2O.sub.3 and MgO relative to the total content of SiO.sub.2 and CaO [(Al.sub.2O.sub.3+MgO)/(SiO.sub.2+CaO)] is in a range of 0.30 or more and 0.6 or less, the total content of SiO.sub.2 and Al.sub.2O.sub.3 (SiO.sub.2+Al.sub.2O.sub.3) is in a range of 64 mol % or more and 85 mol % or less, and the total content of SiO.sub.2, Al.sub.2O.sub.3, MgO, and CaO (SiO.sub.2+Al.sub.2O.sub.3+MgO+CaO) is in a range of 87 mol % or more and 98 mol % or less.

Provided is a disc archive apparatus, including: a tray conveying robot that selects a specified disc tray and conveys the specified disc tray; a rotatable turn table, the disc tray conveyed by the tray conveying robot being placed on the rotatable turn table; a disc conveying picker for placing the discs from the disc tray placed on the turn table into the plurality of drives of the disc drive; and a controller that controls an operation, in which the controller performs a control operation including performing processing including recording or reproduction on/from the disc taken out from a disc tray currently placed on a first area of the turn table, rotating the turn table thereafter, and performing processing including recording or reproduction on/from a next disc tray placed on a second area of the turn table.

Provided is a disc archive apparatus, including: a tray conveying robot that selects a specified disc tray and conveys the specified disc tray; a rotatable turn table, the disc tray conveyed by the tray conveying robot being placed on the rotatable turn table; a disc conveying picker for placing the discs from the disc tray placed on the turn table into the plurality of drives of the disc drive; and a controller that controls an operation, in which the controller performs a control operation including performing processing including recording or reproduction on/from the disc taken out from a disc tray currently placed on a first area of the turn table, rotating the turn table thereafter, and performing processing including recording or reproduction on/from a next disc tray placed on a second area of the turn table.

A disc cassette includes a curved portion configured to hold multiple discs. A platform portion abuts the curved portion. A movable bale is configured to maintain discs securely in the disc cassette except when rotated off the discs.

A magazine management device stores a plurality of magazines in which a plurality of optical discs is housed. The magazine management device includes a case that supports the plurality of magazines, a plurality of partitions that divides the case so as to form a plurality of regions in which the magazines can be stored one by one, an antenna that transmits a radio wave for asking a radio identifier provided to the magazine for a response and receives a radio wave of the response transmitted from the radio identifier, and an arithmetic processor that receives information obtained from the radio wave of the response received by the antenna.

A disc cassette includes a curved portion configured to hold multiple discs. A platform portion abuts the curved portion. A movable bale is configured to maintain discs securely in the disc cassette except when rotated off the discs.