JPS5742434A - Paper feeder - Google Patents

Paper feeder

Info

Publication number
JPS5742434A
JPS5742434A JP55116254A JP11625480A JPS5742434A JP S5742434 A JPS5742434 A JP S5742434A JP 55116254 A JP55116254 A JP 55116254A JP 11625480 A JP11625480 A JP 11625480A JP S5742434 A JPS5742434 A JP S5742434A
Authority
JP
Japan
Prior art keywords
paper
difference
supply roller
contact
pressure
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
JP55116254A
Other languages
Japanese (ja)
Inventor
Yoshinobu Tonomura
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 JP55116254A priority Critical patent/JPS5742434A/en
Publication of JPS5742434A publication Critical patent/JPS5742434A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PURPOSE: To keep contact pressure constant and surely supply sheets of paper one by one, by feedbacking to an electromagnetic actuator the difference between a prescribed level and the contact pressure which is applied to a paper supply roller by the electromagnetic force of the electromagnetic actuator.
CONSTITUTION: Sheets of copying paper stacked on an internal plate 3 in a deck body 1 are supplied one by one by a paper supply roller 10 which comes into contact with the top of the paper. The pressure of the contact is measured by a strain gauge provided on the arm 12 of a paper supply roller shaft 11. The measured pressure is compared with a level prescribed depending on the kind of the paper. The difference between the compared quantities is feedbacked to the solenoid 16 of an electromagnetic actuator. The actuator causes constant torque depending on an electrical current level proportional to the difference, to apply upwardly turning torque to the rotary shaft 5 of the internal plate 3 through a gear train 13 and a coupler.
COPYRIGHT: (C)1982,JPO&Japio
JP55116254A 1980-08-23 1980-08-23 Paper feeder Pending JPS5742434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55116254A JPS5742434A (en) 1980-08-23 1980-08-23 Paper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55116254A JPS5742434A (en) 1980-08-23 1980-08-23 Paper feeder

Publications (1)

Publication Number Publication Date
JPS5742434A true JPS5742434A (en) 1982-03-10

Family

ID=14682564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55116254A Pending JPS5742434A (en) 1980-08-23 1980-08-23 Paper feeder

Country Status (1)

Country Link
JP (1) JPS5742434A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246223A (en) * 1992-01-03 1993-09-21 Bell & Howell Company Automatic magazine speed control for document processing system
US7396010B2 (en) * 2002-05-28 2008-07-08 Kabushiki Kaisha Toshiba Take-out apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246223A (en) * 1992-01-03 1993-09-21 Bell & Howell Company Automatic magazine speed control for document processing system
US7396010B2 (en) * 2002-05-28 2008-07-08 Kabushiki Kaisha Toshiba Take-out apparatus

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