Browse Prior Art Database

Magnetic Recorder Cleaning Control

IP.com Disclosure Number: IPCOM000047272D
Original Publication Date: 1983-Oct-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Danielsen, KD: AUTHOR [+2]

Abstract

Magnetic recorders of the disk and tape type often employ recording techniques which require some contact between a transducer and a relatively moving magnetic storage media. Such contact results in the accumulation of debris on the transducer which can degrade the recording and reproducing operation. Accordingly, it has been the practice to insert cleaning cartridges into such disk and tape recorders. This article teaches that the external configuration of a cartridge can be used to distinguish between cartridges containing a data recording medium and a cleaning medium. Electronic circuitry of the recorder is simplified in that a cartridge-present detector in combination with a write enable or file protect have their outputs decoded for indicating the presence of a data-containing or a cleaning medium-containing cartridge.

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Magnetic Recorder Cleaning Control

Magnetic recorders of the disk and tape type often employ recording techniques which require some contact between a transducer and a relatively moving magnetic storage media. Such contact results in the accumulation of debris on the transducer which can degrade the recording and reproducing operation. Accordingly, it has been the practice to insert cleaning cartridges into such disk and tape recorders. This article teaches that the external configuration of a cartridge can be used to distinguish between cartridges containing a data recording medium and a cleaning medium. Electronic circuitry of the recorder is simplified in that a cartridge-present detector in combination with a write enable or file protect have their outputs decoded for indicating the presence of a data- containing or a cleaning medium-containing cartridge. When a cleaner recess in the cleaning cartridge fails to activate the presence sensor and the write-enable sensor is active, the combination signifies a cleaning cartridge. In a first embodiment, the record medium-containing cartridge is inserted into a stationary holder and electronic circuits decode the write enable and presence sensors for indicating the type of cartridge being inserted. For a data cartridge, the external outline causes activation of a cartridge presence sensor (PS) which activates AND circuits 1 and 2 to respond to the write enable sensor (WE) for respectively enabling the recording operation or file-protected operations (read only). A ready indicator from the recorder circuit (not shown), completes the enablement of AND circuits 1 and 2. When a cleaning cartridge is inserted into the stationary holder (not shown) the cleaner recess fails to activate PS while the write enable of the cleaning cartridge, a...