JPS55156153A - Detecting device for amount of paper - Google Patents

Detecting device for amount of paper

Info

Publication number
JPS55156153A
JPS55156153A JP6297979A JP6297979A JPS55156153A JP S55156153 A JPS55156153 A JP S55156153A JP 6297979 A JP6297979 A JP 6297979A JP 6297979 A JP6297979 A JP 6297979A JP S55156153 A JPS55156153 A JP S55156153A
Authority
JP
Japan
Prior art keywords
amount
paper
printing paper
printing
indicating
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
JP6297979A
Other languages
Japanese (ja)
Inventor
Kenzo Ina
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 JP6297979A priority Critical patent/JPS55156153A/en
Publication of JPS55156153A publication Critical patent/JPS55156153A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)

Abstract

PURPOSE: To inform a user a remained amount of printing paper and to prevent an interruption of a process due to insufficinet amount of the paper by a method wherein the amount of the printing paper being set in a printing device is detected to generate a signal indicating a using condition of the printing paper.
CONSTITUTION: A position of a paper carrying table PP elevated in accordance with an amount of a printing paper P is detected to inform a user the remained amount of the printing paper P by indicating a condition thereof in an operating portion OP. A proper sets of position detecting sensors are provided at predetermined plural positions within an elevating range of the paper carrying table PP, for example. Further, photocouplers 1W3 corresponding to each sensor are provided and amplifiers 5W7 are coupled to them respectively. On the other hand, LED drivers 8W11, flip flops 12, 13 and LEDs (luminous elements) 15W18 for indicating the amount of the paper are provided and each of them are coupled to the photocouplers 1W3. According to this method, respective LED15W18 are flickered sequentially and the remained amount of the printing paper P is indicated.
COPYRIGHT: (C)1980,JPO&Japio
JP6297979A 1979-05-22 1979-05-22 Detecting device for amount of paper Pending JPS55156153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6297979A JPS55156153A (en) 1979-05-22 1979-05-22 Detecting device for amount of paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6297979A JPS55156153A (en) 1979-05-22 1979-05-22 Detecting device for amount of paper

Publications (1)

Publication Number Publication Date
JPS55156153A true JPS55156153A (en) 1980-12-04

Family

ID=13215976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6297979A Pending JPS55156153A (en) 1979-05-22 1979-05-22 Detecting device for amount of paper

Country Status (1)

Country Link
JP (1) JPS55156153A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040352U (en) * 1983-08-24 1985-03-20 横河電機株式会社 Chart feed mechanism
KR20030017255A (en) * 2001-08-24 2003-03-03 주식회사 엘지이아이 A key display circuit
US7899342B2 (en) * 2003-04-25 2011-03-01 Sharp Kabushiki Kaisha Image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040352U (en) * 1983-08-24 1985-03-20 横河電機株式会社 Chart feed mechanism
KR20030017255A (en) * 2001-08-24 2003-03-03 주식회사 엘지이아이 A key display circuit
US7899342B2 (en) * 2003-04-25 2011-03-01 Sharp Kabushiki Kaisha Image forming apparatus

Similar Documents

Publication Publication Date Title
JPS52129541A (en) Signal judging system
JPS55156153A (en) Detecting device for amount of paper
JPS546437A (en) Discriminator for sheets of paper or the like
JPS5396674A (en) Photo mask
JPS54935A (en) Pattern detector
JPS52143882A (en) Vibration source position detection system
JPS5624508A (en) Device for measuring picture area from offset printing plate
JPS534562A (en) Width detecting system for printed matter
JPS52136630A (en) Inclination detection system
JPS5419360A (en) Ic case with resistors
JPS5242046A (en) Cash service unit
JPS533279A (en) Abnormal transfer detecting device
JPS5319906A (en) Inspecting machine for molten loss of refractories in furnace
JPS5345856A (en) Method of detecting overload by strain gauge of crane
JPS5296051A (en) Area measuring system for patterns
JPS51127441A (en) Sensor check circuit
JPS52127276A (en) Temperature compensation circuit for presure transmitter
JPS53125694A (en) Laser working device
JPS5422727A (en) Paper detecting device
JPS5295930A (en) Character separation device
JPS5423832A (en) Detecting system of air-fuel ratio control device
JPS52107494A (en) Failed fuel detecting method
JPS5774189A (en) Printer
JPS5233426A (en) Mark read circuit
JPS5372528A (en) Print detecting system