JPS55115534A - Two-sheet feeding detection method - Google Patents

Two-sheet feeding detection method

Info

Publication number
JPS55115534A
JPS55115534A JP2411279A JP2411279A JPS55115534A JP S55115534 A JPS55115534 A JP S55115534A JP 2411279 A JP2411279 A JP 2411279A JP 2411279 A JP2411279 A JP 2411279A JP S55115534 A JPS55115534 A JP S55115534A
Authority
JP
Japan
Prior art keywords
paper leaves
paper
leaves
lever
sheet feeding
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
JP2411279A
Other languages
Japanese (ja)
Inventor
Yasutomi Ejiri
Kenji Furukawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2411279A priority Critical patent/JPS55115534A/en
Publication of JPS55115534A publication Critical patent/JPS55115534A/en
Pending legal-status Critical Current

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  • Controlling Sheets Or Webs (AREA)

Abstract

PURPOSE: To simultaneously enable use of paper leaves whose paper thickness is different by giving the information of paper thickness based on the data entered on the paper leaves or with a switch.
CONSTITUTION: When the paper leaves 1 pass through between the upper guide 27 and the lower guide 28, they are bitten between the roller 16 and the pinch roller 17. When the paper leaves 1 are bitten into the feed roller 16 and the pinch roller 17, the magnifying lever 18 moves. The detector 22 is mounted above the lever 18 and the detector 22 detects the move of this lever 18. To detect the existence of the paper leaves, two sets of the lamp 34 and the photodiode 35 are provided. When the two sets of photodiodes 35 are bright, they detect that there are no paper leaves. By adding the value of the photodiode 35 for 1.5 sheets of paper leaves to the value for non-paper leaves, two-sheet feeding is detected.
COPYRIGHT: (C)1980,JPO&Japio
JP2411279A 1979-02-28 1979-02-28 Two-sheet feeding detection method Pending JPS55115534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2411279A JPS55115534A (en) 1979-02-28 1979-02-28 Two-sheet feeding detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2411279A JPS55115534A (en) 1979-02-28 1979-02-28 Two-sheet feeding detection method

Publications (1)

Publication Number Publication Date
JPS55115534A true JPS55115534A (en) 1980-09-05

Family

ID=12129238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2411279A Pending JPS55115534A (en) 1979-02-28 1979-02-28 Two-sheet feeding detection method

Country Status (1)

Country Link
JP (1) JPS55115534A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200364A1 (en) 1981-01-08 1982-07-22 Ricoh Co., Ltd., Tokyo "DEVICE FOR Distinguishing a Sheet Feeding Condition"
JPS5853746U (en) * 1981-10-08 1983-04-12 小林　廣 Bad collation detection device
JPS62161653A (en) * 1986-01-08 1987-07-17 Canon Inc Sheet body double-feed detector
JPS62161654A (en) * 1986-01-08 1987-07-17 Canon Inc Sheet body double-feed detector
JPH03192051A (en) * 1989-12-19 1991-08-21 Fuji Xerox Co Ltd Double feed detecting device for paper form
EP1247772A2 (en) * 2001-04-02 2002-10-09 FL Technology Inc. Apparatus for sensing the feeding of sheets of paper

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200364A1 (en) 1981-01-08 1982-07-22 Ricoh Co., Ltd., Tokyo "DEVICE FOR Distinguishing a Sheet Feeding Condition"
JPS5853746U (en) * 1981-10-08 1983-04-12 小林　廣 Bad collation detection device
JPH0235710Y2 (en) * 1981-10-08 1990-09-28
JPS62161653A (en) * 1986-01-08 1987-07-17 Canon Inc Sheet body double-feed detector
JPS62161654A (en) * 1986-01-08 1987-07-17 Canon Inc Sheet body double-feed detector
JPH03192051A (en) * 1989-12-19 1991-08-21 Fuji Xerox Co Ltd Double feed detecting device for paper form
EP1247772A2 (en) * 2001-04-02 2002-10-09 FL Technology Inc. Apparatus for sensing the feeding of sheets of paper
EP1247772A3 (en) * 2001-04-02 2003-08-06 FL Technology Inc. Apparatus for sensing the feeding of sheets of paper

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