JPS57209145A - Transfer condition detector of sheet - Google Patents

Transfer condition detector of sheet

Info

Publication number
JPS57209145A
JPS57209145A JP9188181A JP9188181A JPS57209145A JP S57209145 A JPS57209145 A JP S57209145A JP 9188181 A JP9188181 A JP 9188181A JP 9188181 A JP9188181 A JP 9188181A JP S57209145 A JPS57209145 A JP S57209145A
Authority
JP
Japan
Prior art keywords
sheet
transfer
ellipse
switch
major
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
JP9188181A
Other languages
Japanese (ja)
Inventor
Kazuo Isaka
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 JP9188181A priority Critical patent/JPS57209145A/en
Publication of JPS57209145A publication Critical patent/JPS57209145A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors

Landscapes

  • Controlling Sheets Or Webs (AREA)

Abstract

PURPOSE:To improve a detecting response of a sheet transfer condition and safety of the transfer, in a device used for a copying machine or the like, by constituting the device in such a manner that a sheet transfer condition detecting means being displayed by sheet transfer force, is provided to detect the transfer condition through detection of the displacement of said means. CONSTITUTION:Major and minor ellipses 2, 3 are provided on the passage of a sheet 1, and a surface 5 of larger friction coefficient is formed to a surface of the major sllipse 3. When a short axis of the minor ellipse 3 faces to the sheet 1, a microswitch 6 is turned off. At this off-time of the switch, if transfer of a sheet is stopped, the larger ellipse 2 is pulled by a spring 4 to hold the switch 6 in an off-state. At transfer of the sheet 1, contact force of the sheet 1 to the friction surface 5 of the major ellipse 2 can turn the major ellipse 2 to turn on the switch 6. Accordingly, despite rotation of the minor ellipse 3, the switch 6 can be always turned to an on-state. Alternate generation of on and off states shows a transfer stop condition of sheets. In this way, transfer of sheets can be surely detected, and safety can be improved.
JP9188181A 1981-06-15 1981-06-15 Transfer condition detector of sheet Pending JPS57209145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9188181A JPS57209145A (en) 1981-06-15 1981-06-15 Transfer condition detector of sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9188181A JPS57209145A (en) 1981-06-15 1981-06-15 Transfer condition detector of sheet

Publications (1)

Publication Number Publication Date
JPS57209145A true JPS57209145A (en) 1982-12-22

Family

ID=14038897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9188181A Pending JPS57209145A (en) 1981-06-15 1981-06-15 Transfer condition detector of sheet

Country Status (1)

Country Link
JP (1) JPS57209145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08310688A (en) * 1994-09-20 1996-11-26 Hewlett Packard Co <Hp> State detector for printing medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08310688A (en) * 1994-09-20 1996-11-26 Hewlett Packard Co <Hp> State detector for printing medium

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