JPS55111354A - Paper jamming detection system - Google Patents

Paper jamming detection system

Info

Publication number
JPS55111354A
JPS55111354A JP1746879A JP1746879A JPS55111354A JP S55111354 A JPS55111354 A JP S55111354A JP 1746879 A JP1746879 A JP 1746879A JP 1746879 A JP1746879 A JP 1746879A JP S55111354 A JPS55111354 A JP S55111354A
Authority
JP
Japan
Prior art keywords
conveyance
paper
state
roller
jamming
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
JP1746879A
Other languages
Japanese (ja)
Inventor
Shuichi Takahashi
Masanori Yoshimura
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP1746879A priority Critical patent/JPS55111354A/en
Publication of JPS55111354A publication Critical patent/JPS55111354A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

PURPOSE: To surely detect the jamming of paper, by providing a roller which is rotated synchronously with the conveyance of continuous paper, installing a detector for the rotative state of the roller, and monitoring the output of the detector when a conveyance instruction is applied.
CONSTITUTION: A driven roller 7b is rotated synchronously with the conveyance of recording paper 1a. As a result, a slitted disc 7b3 is rotated and a photocoupler 7b5 generates a detection pulse P which shows the state of conveyance of the recording paper. When the detection pulse P is applied to a one-shot circuit 11, an "H"-level signal V is continuously produced throughout the state of conveyance. A judgement circuit 12 detects a conveyance instruction signal S and the output V to generate a signal W to raise an alarm and turn off a power source or the like. Thus, a trouble due to the jamming of the paper can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP1746879A 1979-02-17 1979-02-17 Paper jamming detection system Pending JPS55111354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1746879A JPS55111354A (en) 1979-02-17 1979-02-17 Paper jamming detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1746879A JPS55111354A (en) 1979-02-17 1979-02-17 Paper jamming detection system

Publications (1)

Publication Number Publication Date
JPS55111354A true JPS55111354A (en) 1980-08-27

Family

ID=11944843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1746879A Pending JPS55111354A (en) 1979-02-17 1979-02-17 Paper jamming detection system

Country Status (1)

Country Link
JP (1) JPS55111354A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103050U (en) * 1989-02-03 1990-08-16

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115440A (en) * 1974-07-30 1976-02-06 Mitsubishi Electric Corp Shiitono jamingukenshutsuhoho oyobi sonosochi
JPS5178245A (en) * 1974-12-27 1976-07-07 Sharp Kk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115440A (en) * 1974-07-30 1976-02-06 Mitsubishi Electric Corp Shiitono jamingukenshutsuhoho oyobi sonosochi
JPS5178245A (en) * 1974-12-27 1976-07-07 Sharp Kk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103050U (en) * 1989-02-03 1990-08-16

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