JPS5535310A - Safety device - Google Patents

Safety device

Info

Publication number
JPS5535310A
JPS5535310A JP10709578A JP10709578A JPS5535310A JP S5535310 A JPS5535310 A JP S5535310A JP 10709578 A JP10709578 A JP 10709578A JP 10709578 A JP10709578 A JP 10709578A JP S5535310 A JPS5535310 A JP S5535310A
Authority
JP
Japan
Prior art keywords
optical system
lamp
lighting
exposure
drum
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
JP10709578A
Other languages
Japanese (ja)
Other versions
JPS6244266B2 (en
Inventor
Tsuneki Inuzuka
Koichi Murakami
Kenji Kurita
Hisashi Sakamaki
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 JP10709578A priority Critical patent/JPS5535310A/en
Publication of JPS5535310A publication Critical patent/JPS5535310A/en
Publication of JPS6244266B2 publication Critical patent/JPS6244266B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Systems Of Projection Type Copiers (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To prevent breakage near optical system owing to abnormal lighting by so arranging the safety device that current is supplied to the exposure lamp after it has been detected that the operation is of exposure process in an electrophotographic copier. CONSTITUTION:In a copying machine in which the original images are exposed to a drum 47 by a scanning optical system 53, the exposure lamp is lighted after it has been checked that the optical system is in the start position and that the next process is the forward movement of the optical system. When the lamp is lighting while the drum is not rotating or the optical system advance clutch fails to operate after lighting, the optical system over-runs (detected by MS), and when the optical systems fails to turn over and move backward or when the above checking cannot be done and the lamp is overheated, the lamp is put out, whereby the breakage of the original platen and lamp is prevented.
JP10709578A 1978-09-01 1978-09-01 Safety device Granted JPS5535310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10709578A JPS5535310A (en) 1978-09-01 1978-09-01 Safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10709578A JPS5535310A (en) 1978-09-01 1978-09-01 Safety device

Publications (2)

Publication Number Publication Date
JPS5535310A true JPS5535310A (en) 1980-03-12
JPS6244266B2 JPS6244266B2 (en) 1987-09-18

Family

ID=14450322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10709578A Granted JPS5535310A (en) 1978-09-01 1978-09-01 Safety device

Country Status (1)

Country Link
JP (1) JPS5535310A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852063A (en) * 1981-08-21 1983-03-28 ダブリユ−・ア−ル・グレイス・アンド・カンパニ− Packing with seal which is easily unsealed
JPS59199463A (en) * 1983-04-20 1984-11-12 テルモ株式会社 Packing vessel
US4729476A (en) * 1985-02-21 1988-03-08 W.R. Grace & Co., Cryovac Div. Easy open shrinkable laminate
JPS6391238A (en) * 1986-10-04 1988-04-21 株式会社ダイワバツクス Unsealing structure
US5024044A (en) * 1987-06-12 1991-06-18 W. R. Grace & Co.-Conn. Process for producing an easily opened package

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5053051A (en) * 1973-09-07 1975-05-10
JPS5084245A (en) * 1973-11-24 1975-07-08
JPS5147242U (en) * 1974-10-04 1976-04-08
JPS51120716A (en) * 1975-04-16 1976-10-22 Hitachi Ltd Safety device for duplicators
JPS5226827A (en) * 1975-08-25 1977-02-28 Hitachi Ltd Scanning exposure type copying machine
JPS5280123A (en) * 1975-12-26 1977-07-05 Toshiba Corp Detection of irregularity in copier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5053051A (en) * 1973-09-07 1975-05-10
JPS5084245A (en) * 1973-11-24 1975-07-08
JPS5147242U (en) * 1974-10-04 1976-04-08
JPS51120716A (en) * 1975-04-16 1976-10-22 Hitachi Ltd Safety device for duplicators
JPS5226827A (en) * 1975-08-25 1977-02-28 Hitachi Ltd Scanning exposure type copying machine
JPS5280123A (en) * 1975-12-26 1977-07-05 Toshiba Corp Detection of irregularity in copier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852063A (en) * 1981-08-21 1983-03-28 ダブリユ−・ア−ル・グレイス・アンド・カンパニ− Packing with seal which is easily unsealed
JPS59199463A (en) * 1983-04-20 1984-11-12 テルモ株式会社 Packing vessel
US4729476A (en) * 1985-02-21 1988-03-08 W.R. Grace & Co., Cryovac Div. Easy open shrinkable laminate
JPS6391238A (en) * 1986-10-04 1988-04-21 株式会社ダイワバツクス Unsealing structure
US5024044A (en) * 1987-06-12 1991-06-18 W. R. Grace & Co.-Conn. Process for producing an easily opened package

Also Published As

Publication number Publication date
JPS6244266B2 (en) 1987-09-18

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