JPS63172565A - 光源不点灯検出装置 - Google Patents

光源不点灯検出装置

Info

Publication number
JPS63172565A
JPS63172565A JP62003337A JP333787A JPS63172565A JP S63172565 A JPS63172565 A JP S63172565A JP 62003337 A JP62003337 A JP 62003337A JP 333787 A JP333787 A JP 333787A JP S63172565 A JPS63172565 A JP S63172565A
Authority
JP
Japan
Prior art keywords
level
section
image signal
light source
detected
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
JP62003337A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0580190B2 (en, 2012
Inventor
Osamu Ishikawa
修 石川
Kiyoshi Sumiya
住谷　清
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP62003337A priority Critical patent/JPS63172565A/ja
Priority to US07/140,509 priority patent/US4876605A/en
Priority to EP19880300054 priority patent/EP0275143A3/en
Priority to CA000556153A priority patent/CA1285063C/en
Publication of JPS63172565A publication Critical patent/JPS63172565A/ja
Publication of JPH0580190B2 publication Critical patent/JPH0580190B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Facsimile Scanning Arrangements (AREA)
JP62003337A 1987-01-12 1987-01-12 光源不点灯検出装置 Granted JPS63172565A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62003337A JPS63172565A (ja) 1987-01-12 1987-01-12 光源不点灯検出装置
US07/140,509 US4876605A (en) 1987-01-12 1987-12-31 Image reading device
EP19880300054 EP0275143A3 (en) 1987-01-12 1988-01-06 Image reading device
CA000556153A CA1285063C (en) 1987-01-12 1988-01-08 Image reading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62003337A JPS63172565A (ja) 1987-01-12 1987-01-12 光源不点灯検出装置

Publications (2)

Publication Number Publication Date
JPS63172565A true JPS63172565A (ja) 1988-07-16
JPH0580190B2 JPH0580190B2 (en, 2012) 1993-11-08

Family

ID=11554538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62003337A Granted JPS63172565A (ja) 1987-01-12 1987-01-12 光源不点灯検出装置

Country Status (1)

Country Link
JP (1) JPS63172565A (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007150934A (ja) * 2005-11-30 2007-06-14 Fuji Xerox Co Ltd 画像読取装置
JP2013141079A (ja) * 2011-12-28 2013-07-18 Ricoh Co Ltd 画像読取装置、自動原稿搬送装置および画像形成装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625769A (ja) * 1985-07-01 1987-01-12 Canon Inc 画像読取装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625769A (ja) * 1985-07-01 1987-01-12 Canon Inc 画像読取装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007150934A (ja) * 2005-11-30 2007-06-14 Fuji Xerox Co Ltd 画像読取装置
JP2013141079A (ja) * 2011-12-28 2013-07-18 Ricoh Co Ltd 画像読取装置、自動原稿搬送装置および画像形成装置

Also Published As

Publication number Publication date
JPH0580190B2 (en, 2012) 1993-11-08

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees