摘要:
In a dust removing system, the level of influence of dust sticking to an objective lens of an optical head is detected from either an amount of light emitted from the optical head and reflected from an optical head or from an access time. Three stages of levels with regard to the degree of influence of the dust are set in accordance with such detection value, and a different message for the removal of dust is indicated on a display unit in response to the level of the influence. When the influence is low, a dust removing mechanism is automatically rendered operative to remove the dust. At the first level at which the influence of dust is low, the optical disk in the optical disk device is discharged and cleaning of the objective lens is performed, and an indication is provided on the display unit representing that cleaning is proceeding. When the second stage is detected, the optical disk in the optical disk device is discharged, and a message is indicated on the display unit representing that cleaning of the objective lens should be performed using a cleaning disk. When the third stage is detected, a message is indicated on the display unit representing that cleaning of the objective lens should be performed by manual operation.
摘要:
The surface of a slider for a magnetic recording head, a burnishing head, or a glide head includes a pair of rails that, in operation, face the magnetic recording medium to form air bearing surfaces. These air bearing surfaces have slots cut into them at the same prescribed angle relative to the longitudinal axis of the slider, and along a single straight line. This provides slots which are asymmetric about the longitudinal axis, causing the slider to fly nearer the recording medium and at almost constant height.
摘要:
Electrical grounding is provided for an optional device in a computer system, and a gap of varying width adjacent to the device is filled with a conductive shield, by means of a flexible grounding spring having a folded central section from which tabs extend in one direction to contact a conductive surface of the device and in the opposite direction to contact a conductive surface of the machine framework. This grounding spring is held by means of a mounting bracket having a slot through which the folded central section extends to be held in place by locking tabs formed in this section.
摘要:
An apparatus for cleaning disks includes an enclosed housing with an operable door therein adapted to permit access to the interior of the housing. A rack is removably mounted within the housing, and will retain a plurality of disks in parallel spaced-apart relation within a disk-retaining cradle within the housing. The disk-retaining cradle is operably mounted so as to rotate about an axis passing through the centers of all of the disks. A spray bar projects within the housing and through all of the central openings in each of the disks, and has a plurality of spray nozzles therein to spray fluid radially outwardly therefrom to cover all of the disks, as they rotate in the cradle. A method for cleaning disks includes the initial step of providing a housing with an operable door and a cradle therein adapted to rotate a plurality of disks. The disks to be cleaned are then loaded in a rack which retains the disks in parallel spaced-apart orientation, which is loaded in the cradle within the housing. A spray arm within the housing projects through the central openings of the disks as the disks are loaded within the housing. Once the door is shut, the cradle is operated so as to rotate, thereby rotating all of the disks. Fluid is then sprayed from the spray arm onto the disks as they rotate.
摘要:
Described herein is a surface treating tape cartridge packaging a surface treating tape in a casing ready for loading the tape on a surface treating machine, and a surface treating machine capable of automatically loading a surface treating tape in position from such a cartridge, the tape cartridge being basically composed of: a casing formed by separably joined upper and lower halves; and a pair of reels carrying a roll of surface treating tape and rotatably accommodated between the upper and lower halves of the casing.
摘要:
An apparatus for cleaning electromagnetic tape wound onto dual reels of a tape cartridge is disclosed. A housing is provided having a pair of spindles rotatably supported thereon for receiving respective reels of a tape cartridge. A drive mechanism is drivingly connected to one of the spindles for causing the tape to be transferred from one reel to the other. A first absorbent pad is supported on the housing for wiping engagement with one side of the tape and a cleaner post carrier is supported on the housing for movement between a cleaning position adjacent the first pad and a loading position spaced from the first pad. The cleaner post has opposite first and second cleaner surfaces and is removably and reversably mounted on the carrier such that one surface faces the first pad. A cleaning fluid reservoir is mounted on the housing and in communication with at least the first pad.
摘要:
A disk storage drive is provided with a brushless drive motor having a stator with a winding. An external rotor coaxially surrounds the stator and is spaced therefrom by a substantially cylindrical air gap. The rotor includes a permanent magnet and a soft magnetic yoke. A hub is provided that is concentric to the yoke and is connected to the rotor for rotation therewith. The hub has a disk mounting portion on its outer peripheral surface that can be passed through the central opening of a standardized storage disk for mounting the storage disks for rotation therewith. At least half of the axial longitudinal dimension of the stator winding and the rotor magnet interacting therewith is housed within the disk mounting portion of the hub. The hub is made from a non-ferromagnetic material that is suitable for storage drive clean chamber use after dimensional finishing of the hub.
摘要:
Disclosed is a disc cartridge comprising a cartridge case, a disc set rotatably in the cartridge case, and cleaning sheets secured to the inside of the cartridge case, wherein at least the disc side surface layer of each cleaning sheet, which is brought into direct sliding contact with the disc in operation, is almost entirely composed of ultrafine fibers having a diameter of less than 10 .mu.m producing an excellent disc cleaning effect on the disc, lessening the errors in the recording and reproducing operations of the disc.
摘要:
A recording medium comprising a substrate, a memory layer supported by the substrate, and a liquid crystal lubricant overlying the recording medium. The recording medium preferably has a wear layer over the memory layer. The liquid crystal lubricant comprises a cholesteric liquid crystal and cholestryl oleyl carbonate is particularly preferred. The lubricant may be applied to the recording medium by dipping in a dilute solution containing a volatile solvent and then evaporating the solvent, leaving a thin lubricant film over the wear layer.
摘要:
A tape cassette for a magnetic recording tape having metallic magnetic recording layer is provided with a gas trapping layer which is disposed on a portion of the cassette near the path of the magnetic recording tape stretched between a pair of reels. The trapping layer has a trapping tendency which is at least equivalent to that of the magnetic recording tape. Any corrosive gas components coming into the cassette is adsorbed by and made to react with the trapping layer so as to reduce the concentration of the corrosive gas reaching the metallic magnetic recording layer, thus preventing degradation of the magnetic recording layer and ensuring that recording is conducted with high recording density.