JPS5767438A - Detector for existence of form - Google Patents

Detector for existence of form

Info

Publication number
JPS5767438A
JPS5767438A JP55139565A JP13956580A JPS5767438A JP S5767438 A JPS5767438 A JP S5767438A JP 55139565 A JP55139565 A JP 55139565A JP 13956580 A JP13956580 A JP 13956580A JP S5767438 A JPS5767438 A JP S5767438A
Authority
JP
Japan
Prior art keywords
forms
detecting
detecting ring
base plate
ring
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
JP55139565A
Other languages
Japanese (ja)
Inventor
Hiroyuki Miyake
Nobukazu Sasaki
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 JP55139565A priority Critical patent/JPS5767438A/en
Publication of JPS5767438A publication Critical patent/JPS5767438A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

PURPOSE: To simplify the loading and removal of a paper feeding cassette, and to detach jammed forms easily by detecting the change of the upper and lower positions of a form detecting ring by switching a switch and detecting the presence of the forms.
CONSTITUTION: When a paper feeding cassette 1 is loaded on a cassette base 3, the form detecting ring 16 is pushed up by the forms 6, and opens a switch 11 through a roller 18 contacting with an upper surface. When the forms 6 are removed from an upper section of a form base plate 2, the detecting ring 16 falls into a hole 12 of the base plate 2 by tare until an upper surface of an inner circumference of a hole is received by a paper feed roller shaft 8, and the presence of the forms is displayed by the change of the upper and lower positions of the detecting ring 16. The detecting ring 16 is not damaged because the detecting ring 16 is turned and contacting force is avoided even when the base plate 2, etc. contact with the detecting ring 16 when loading or removing the paper feeding cassette, and the jammed forms can easily be removed by pulling the base plate in the arrow direction.
COPYRIGHT: (C)1982,JPO&Japio
JP55139565A 1980-10-06 1980-10-06 Detector for existence of form Pending JPS5767438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55139565A JPS5767438A (en) 1980-10-06 1980-10-06 Detector for existence of form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55139565A JPS5767438A (en) 1980-10-06 1980-10-06 Detector for existence of form

Publications (1)

Publication Number Publication Date
JPS5767438A true JPS5767438A (en) 1982-04-24

Family

ID=15248218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55139565A Pending JPS5767438A (en) 1980-10-06 1980-10-06 Detector for existence of form

Country Status (1)

Country Link
JP (1) JPS5767438A (en)

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