JPS5771551A - Disc driver - Google Patents

Disc driver

Info

Publication number
JPS5771551A
JPS5771551A JP55149073A JP14907380A JPS5771551A JP S5771551 A JPS5771551 A JP S5771551A JP 55149073 A JP55149073 A JP 55149073A JP 14907380 A JP14907380 A JP 14907380A JP S5771551 A JPS5771551 A JP S5771551A
Authority
JP
Japan
Prior art keywords
disc
level
goes
output signal
pushed
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.)
Granted
Application number
JP55149073A
Other languages
Japanese (ja)
Other versions
JPH0135413B2 (en
Inventor
Shugoro Ueno
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP55149073A priority Critical patent/JPS5771551A/en
Publication of JPS5771551A publication Critical patent/JPS5771551A/en
Publication of JPH0135413B2 publication Critical patent/JPH0135413B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Feeding And Guiding Record Carriers (AREA)

Abstract

PURPOSE: To prevent generation of errors owing to a disc by using the disc surface located in a head window part as an area unnecessary for data processing.
CONSTITUTION: First, whether a floppy disc discharge key 7 is pushed or not is discriminted, and when it is pushed, the output signal KON of a discharge key detection circuit 8 goes to the "1" level. Next, the position of an index hole is detected with an LED9 and a phototransistor 10, and the output signal INX goes to the "1" level during the time of the index hole. Thence, the output signal EJCT of an AND gate 1 goes to the "1" level, and a disc driving motor 6 is stopped by a motor, magnet controller part 12. further, the MAG signal is put to the "1", and a magnet 13 is turned on, then a cover 2 is opened by means of a stopper 3. The respective output signals KON, MAG are returned to the "0" level, and the device is now ready to accept the insertion of a floppy disc 14.
COPYRIGHT: (C)1982,JPO&Japio
JP55149073A 1980-10-23 1980-10-23 Disc driver Granted JPS5771551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55149073A JPS5771551A (en) 1980-10-23 1980-10-23 Disc driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55149073A JPS5771551A (en) 1980-10-23 1980-10-23 Disc driver

Publications (2)

Publication Number Publication Date
JPS5771551A true JPS5771551A (en) 1982-05-04
JPH0135413B2 JPH0135413B2 (en) 1989-07-25

Family

ID=15467093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55149073A Granted JPS5771551A (en) 1980-10-23 1980-10-23 Disc driver

Country Status (1)

Country Link
JP (1) JPS5771551A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733314A (en) * 1982-10-14 1988-03-22 Canon Denshi Kabushiki Kaisha Disc unit including automatic ejection upon misinsertion detection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733314A (en) * 1982-10-14 1988-03-22 Canon Denshi Kabushiki Kaisha Disc unit including automatic ejection upon misinsertion detection

Also Published As

Publication number Publication date
JPH0135413B2 (en) 1989-07-25

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