JPS56143574A - Cassette tape - Google Patents

Cassette tape

Info

Publication number
JPS56143574A
JPS56143574A JP4603680A JP4603680A JPS56143574A JP S56143574 A JPS56143574 A JP S56143574A JP 4603680 A JP4603680 A JP 4603680A JP 4603680 A JP4603680 A JP 4603680A JP S56143574 A JPS56143574 A JP S56143574A
Authority
JP
Japan
Prior art keywords
tape
cleaning
extent
magnetic
sensing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4603680A
Other languages
Japanese (ja)
Inventor
Isao Yasuda
Masanobu Yoshisato
Kazuaki Koyama
Yoshihiko Kawai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP4603680A priority Critical patent/JPS56143574A/en
Publication of JPS56143574A publication Critical patent/JPS56143574A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/41—Cleaning of heads

Abstract

PURPOSE:To vary the extent of cleaning by shifting a magnetic tape in take-up stop position according to the degree of dirtiness of a magnetic head, by providing a cleaning tape and sensing tapes to the ends of the magnetic tape. CONSTITUTION:For example, the extent of cleaning is varied by three stages automatically according to the dirtiness of a magnetic head. In this case, a stop solenoid, when the magnetic head is extremely dirty, is put in operation on the passing of the 3rd sensing tape 6a over sensing coil 7 in the take-up operation of the tape, and at the start of the tape run, the extent of the contact of the head with cleaning tape 3 is maximized. According to the dirtiness of the magnetic tape, the tape is stopped at the position of sensing tape 6b or 6c, and the extent of cleaning at the start of the tape run is varied.
JP4603680A 1980-04-07 1980-04-07 Cassette tape Pending JPS56143574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4603680A JPS56143574A (en) 1980-04-07 1980-04-07 Cassette tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4603680A JPS56143574A (en) 1980-04-07 1980-04-07 Cassette tape

Publications (1)

Publication Number Publication Date
JPS56143574A true JPS56143574A (en) 1981-11-09

Family

ID=12735806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4603680A Pending JPS56143574A (en) 1980-04-07 1980-04-07 Cassette tape

Country Status (1)

Country Link
JP (1) JPS56143574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617427A3 (en) * 1993-03-23 1995-03-15 Minnesota Mining & Mfg Tape cassette for cleaning vcr heads and transport components.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617427A3 (en) * 1993-03-23 1995-03-15 Minnesota Mining & Mfg Tape cassette for cleaning vcr heads and transport components.
US6256166B1 (en) 1993-03-23 2001-07-03 3M Innovative Porperties Company Tape cassette for cleaning VCR heads and transport components

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