Abstract: A method for repairing a compact disc (1) damaged by a circumferential scratch (2) comprises subjecting a localized area (21) around the scratch (2) to a treatment regime comprising fifty rubbing cycles with a first abrasive sheet (10) of abrasive particle size of 1 micron. Each rubbing cycle comprises one manual radial stroke in the radial direction A and a return radial stroke in the radial direction B. After the first treatment regime if the scratch (2) has not been sufficiently removed the localized area (21) is then subjected to a similar treatment regime with a second abrasive sheet of abrasive particle size 3 microns. A further similar treatment regime is carried out using a third abrasive sheet of abrasive particle size 5 microns in the event that the second abrasive sheet did not sufficiently remove the scratch (2).

Abstract: A cleaning device (1) for cleaning a lens (2) of a laser head (3) of a compact disc player comprises a carrier disc (5) which is substantially similar to a standard compact disc. Cleaning brushes (14) and (15) are located on the carrier disc (5) on a face (6) thereof which, in use, faces the laser head (3) for cleaning the lens (2) as the carrier disc (5) rotates in the compact disc receiving location of the compact disc player. A non-reflective band (25) is printed on and extends around the outer periphery (12) of the carrier disc (5) for returning the laser head (3) from the outer periphery (12) of the carrier disc (5) to an inner periphery (11), so that as the laser head (3) cycles between the inner and outer peripheries (11) and (12) across the brushes (14) and (15), the brushes (14) and (15) engage the lens (2) in two different relative directions for cleaning thereof.

Abstract: A cleaning device for cleaning a printing head of an ink jet cartridge of an ink jet printer comprises a box having a base closed by a lid. A resilient support pad laminated to the base supports a cleaning member for cleaning the printing head. The cleaning member comprises a backing sheet laminated to the support pad, and a plurality of upstanding fibres woven into and extending upwardly from the backing sheet. The maximum dimension of the fibres is less than the minimum dimension of the ink jet orifices of the printing head for enabling the fibres to project into the ink jet orifices for cleaning thereof. The fibres are of hydrophobic material but are packed sufficiently tightly together for retaining a cleaning liquid by a capillary type action therebetween.

Abstract: A cleaning device (1) for cleaning a video head and drum of a camcorder consists of a housing (2) for engaging the cassette receiving area of the camcorder. A brush (5) on a carrier arm (3) is urged from a rest position within the housing (2) into cleaning engagement with the head and drum under the control of a control mechanism (7). The control mechanism (7) is powered by a drive spindle in the cassette receiving area. A retaining latch (10) secured in the housing (2) consists of a camming member (14) for engaging the carrier arm (3) for retaining the carrier arm (3) and the brush (5) in the rest position. A portion (30) of the retaining latch (10) is resilient for urging the retaining latch (10) downwardly for retaining the carrier arm in the rest position. An engagement member (25) on the retaining latch (10) engages a light post (28) in the cassette receiving area as the housing (2) is being lowered into the cassette receiving area for releasing the retaining latch (10).

Abstract: A cleaning device for cleaning a video drum or video head of a video unit comprises a cassette tape type housing. A carrier arm pivotal in the housing carries a brush for cleaning the video drum and video head. A linkage arm under the action of a drive spring pivots the carrier arm into cleaning engagement with the video drum. A control member under the action of a return spring pivots the linkage arm to return the carrier arm. A timing wheel times a cleaning cycle and controls the linkage arm and the control member.

Abstract: A cassette cleaner for a video player/recorder, comprising a cassette housing having a cleaning device for a capstan and pinch roller. There are separate cleaning pads for the capstan and pinch roller, mounted on resilient arms, and a cleaning ribbon extends between the two cleaning pads in a manner to be able to be engaged by the capstan and pinch roller. A shut off mechanism is provided so as to be operated by the player/recorder so as to shut off the player/recorder after a predetermined number of revolutions of a drive spindle of the player/recorder.

Abstract: Apparatus for cleaning the read/write head of a drive unit for a jacketted flexible magnetic disc comprises a thin substantially square jacket, having, in register on each side, a central aperture and a slot which extends radially from adjacent the central aperture in a direction towards and normal to the rear edge of the jacket. The jacket contains a double-sided cleaning element having a pair of opposite cleaning surfaces of which a portion of each is exposed by a respective slot. The cleaning surfaces comprise respective layers of cleaning material secured together via an intermediate layer of a material which is impermeable to magnetic head cleaning fluid.

Abstract: A cleaning device for cleaning a read/write head of a floppy disc drive unit comprises a plate member for insertion in the floppy disc receiving area. A cleaning member formed by a backing material with a plurality of upstanding tufts of fibres to clean the read/write head is provided in recesses on front and back surfaces of the plate member. Cleaning members are provided in recesses of the plate member to clean guide rails in the floppy disc receiving area.

Abstract: A demagnetizing device for demagnetizing a sound head in a cassette tape recorder, comprises a cassette type housing. A carrier member pivotal in the housing carries a permanent magnet which oscillates with the carrier member sidewardly across an opening in the housing adjacent the sound head of the cassette tape recorder to demagnetize the sound head. A cam driven by a spindle of the cassette tape recorder acting on a follower drives the carrier member with oscillating movement.

Abstract: A device for cleaning the components in the cassette receiving area of a video playing/recording unit comprises a housing having a cleaning tape 26 wound about a pair of spools 24, 25. A carrier member 28 pivotal in the housing carries a brush 29 for cleaning engagement with a drum 2 in the video unit. The cleaning tape extends behind a bearing member 42 of the carrier member and as the cleaning tape is moved into cleaning engagement with the drum of the video unit the carrier member, and in turn the brush are moved outwardly of the housing and the brush engages the drum of the video unit.

Abstract: A cleaning device for cleaning the elements in the tape path, such as the sound head and capstan, pinch roller of a cassette player recorder, the cleaning device comprises a housing with brush members projecting from a front opening to clean the elements. The brush members are mounted on a support member and carrier members. A drive means drives the support member with an oscillating action. The carrier members are driven by the support member so that oscillation of the support member pivots the carrier members inwardly and outwardly of the opening so that the brush members wipe the elements. A reciprocating member driven by the drive means intermittently rotates the feed spindle of the cassette player recorder.

Abstract: A cleaning device for cleaning a compact disc record when the record is in its case comprises a housing rotatable about a spindle for engaging the central portion of the base of the record case. A cleaning member with soft bristles is rotatable in the housing and connected to the spindle through a gear train within the housing. The cleaning member is tiltable relative to the housing to ensure even distribution of pressure over the cleaning surface of the cleaning member. Resilient members on the carrier member bear on a frictionless ring of the housing to accommodate tilting of the cleaning member.

Abstract: Apparatus for cleaning the read/write head of a drive unit for a jacketted flexible magnetic disc comprises a thin substantially square jacket, having, in register on each side, a central aperture and a slot which extends radially from adjacent the central aperture in a direction towards and normal to the rear edge of the jacket. The jacket contains a double-sided cleaning element having a pair of opposite cleaning surfaces of which a portion of each is exposed by a respective slot. The cleaning surfaces comprise respective layers of cleaning material secured together via an intermediate layer of a material which is impermeable to magnetic head cleaning fluid.

Abstract: A mechanism for intermittently wetting a cleaning tape contained within a tape cassette housing is located within the housing at a position along the tape path prior to the tape exit in the direction of forward motion of the tape. The mechanism comprises a star wheel rotatably mounted adjacent the inside surface of the cleaning tape whose arms are driven by friction with the tape to rotate the star wheel, and a lever pivotted adjacent the same surface of the tape as the star wheel, the lever being intermittently deflected in a first direction of rotation by engagement with successive arms of the star wheel as the star wheel rotates during forward motion of the tape.