JPS567267A - Magnetic disc pack unit - Google Patents
Magnetic disc pack unitInfo
- Publication number
- JPS567267A JPS567267A JP8038979A JP8038979A JPS567267A JP S567267 A JPS567267 A JP S567267A JP 8038979 A JP8038979 A JP 8038979A JP 8038979 A JP8038979 A JP 8038979A JP S567267 A JPS567267 A JP S567267A
- Authority
- JP
- Japan
- Prior art keywords
- pack
- medium
- loading
- circuit
- signal
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
Landscapes
- Feeding And Guiding Record Carriers (AREA)
Abstract
PURPOSE:To prevent accidents from being generated due to the operation miss for pack medium loading, by detecting the loading state of the pack medium cover to inhibit the start-up operation. CONSTITUTION:When pack medium 6 is put on spindle 7 of the magnetic disc pack unit, inhibiting circuit 5 is operated by cover fitting and removing signal (a) since the light from a light source does not reach the photodetecting element; and when the driving start operation is performed under this state, driving start signal (b) is transmitted, however, the operation of driving start circuit 9 is stopped by inhibiting signal C from circuit 5, and spindle motor starting signal (d) is not transmitted, and spindle motor driving circuit 10 is not operated, and spindle motor 11 continues the stop state. Next, when pack medium cover 1 is lifted and removed after loading of medium 6, the shielded light from the light source reaches the photodetecting element, and therefore, respective circuits are operated normally by this operation. As a result, accidents are prevented from being generated due to the operation miss for pack medium loading.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8038979A JPS567267A (en) | 1979-06-26 | 1979-06-26 | Magnetic disc pack unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8038979A JPS567267A (en) | 1979-06-26 | 1979-06-26 | Magnetic disc pack unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS567267A true JPS567267A (en) | 1981-01-24 |
Family
ID=13716925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8038979A Pending JPS567267A (en) | 1979-06-26 | 1979-06-26 | Magnetic disc pack unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS567267A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5871571A (en) * | 1981-10-24 | 1983-04-28 | 株式会社明電舎 | Connecting structure for insulator coated bus |
US4646192A (en) * | 1981-12-23 | 1987-02-24 | Cii-Honeywell Bull (Societe Anonyme) | Magnetic disc cartridge having improved disc brake |
-
1979
- 1979-06-26 JP JP8038979A patent/JPS567267A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5871571A (en) * | 1981-10-24 | 1983-04-28 | 株式会社明電舎 | Connecting structure for insulator coated bus |
US4646192A (en) * | 1981-12-23 | 1987-02-24 | Cii-Honeywell Bull (Societe Anonyme) | Magnetic disc cartridge having improved disc brake |
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