JPS6417731A - Paper feeder - Google Patents

Paper feeder

Info

Publication number
JPS6417731A
JPS6417731A JP62172483A JP17248387A JPS6417731A JP S6417731 A JPS6417731 A JP S6417731A JP 62172483 A JP62172483 A JP 62172483A JP 17248387 A JP17248387 A JP 17248387A JP S6417731 A JPS6417731 A JP S6417731A
Authority
JP
Japan
Prior art keywords
paper feed
feed motor
timer
motor
roller
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
JP62172483A
Other languages
Japanese (ja)
Inventor
Junichi Kimizuka
Kaoru Sato
Takashi Soya
Satohiko Inuyama
Akihisa Kusano
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 JP62172483A priority Critical patent/JPS6417731A/en
Publication of JPS6417731A publication Critical patent/JPS6417731A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To detect overload of a paper feed motor and to prevent burning of the paper feed motor by stopping the paper feed motor if the paper feed roller does not return to home position upon elapse of a specific time after start of rotation. CONSTITUTION:A timer 30 is constituted with resistors 31, 32, 33 and a comparator 35, and when a power source is turned ON and when the collector voltage of a transistor 36 goes from low level to high level, charging of a capacitor 34 is started so as to start a timer 30. If the optical path of a roller position sensor 19 is not blocked by a barrier board fixed to the gear of a paper feed roller even upon elapse of a specific time after start of rotation of the paper feed roller, a transistor 37 is turned ON so as to stop the motor 2. Consequently, overload of the paper feed motor 2 can be detected accurately through a timer 30 and the paper feed motor 2 can be protected from burning.
JP62172483A 1987-07-10 1987-07-10 Paper feeder Pending JPS6417731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62172483A JPS6417731A (en) 1987-07-10 1987-07-10 Paper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62172483A JPS6417731A (en) 1987-07-10 1987-07-10 Paper feeder

Publications (1)

Publication Number Publication Date
JPS6417731A true JPS6417731A (en) 1989-01-20

Family

ID=15942825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62172483A Pending JPS6417731A (en) 1987-07-10 1987-07-10 Paper feeder

Country Status (1)

Country Link
JP (1) JPS6417731A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05171293A (en) * 1991-12-25 1993-07-09 Kobe Steel Ltd Production of cold rolled steel sheet having high strength and excellent in deep drawability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05171293A (en) * 1991-12-25 1993-07-09 Kobe Steel Ltd Production of cold rolled steel sheet having high strength and excellent in deep drawability

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