JPS57101872A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS57101872A
JPS57101872A JP55178429A JP17842980A JPS57101872A JP S57101872 A JPS57101872 A JP S57101872A JP 55178429 A JP55178429 A JP 55178429A JP 17842980 A JP17842980 A JP 17842980A JP S57101872 A JPS57101872 A JP S57101872A
Authority
JP
Japan
Prior art keywords
human body
signal
dangerous parts
contact
heater unit
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
JP55178429A
Other languages
Japanese (ja)
Inventor
Toshio Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55178429A priority Critical patent/JPS57101872A/en
Publication of JPS57101872A publication Critical patent/JPS57101872A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To prevent the contact of a human body with dangerous parts by detecting the approach of an object to the dangerous parts when it occurs and emitting an alarm. CONSTITUTION:An infrared ray detector 5 is provided to the upper part of a heater unit 1. A narrow band amplifier 11 of an electric circuit amplifies only the signal in accordance with the infrared rays from a human body out of the output signal of an IR detector 5. A comparator 12 is so arranged as to output a signal when the temps. of upper, lower heaters 2, 3 are above a constant value and the human body is in proximity to the heater unit 1. Now, when the hand of an operator or the like goes close to the unit 1 while the heaters 2, 3 are still maintaining a high temp. state, an alarm sound is emitted from a buzzer 14. Thereby, the contact or the like of the human body with the dangerous parts is prevented.
JP55178429A 1980-12-17 1980-12-17 Copying machine Pending JPS57101872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178429A JPS57101872A (en) 1980-12-17 1980-12-17 Copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178429A JPS57101872A (en) 1980-12-17 1980-12-17 Copying machine

Publications (1)

Publication Number Publication Date
JPS57101872A true JPS57101872A (en) 1982-06-24

Family

ID=16048347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178429A Pending JPS57101872A (en) 1980-12-17 1980-12-17 Copying machine

Country Status (1)

Country Link
JP (1) JPS57101872A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7176463B2 (en) * 2004-07-15 2007-02-13 Honeywell International, Inc. Method and apparatus for large signal detection in passive infrared sensor applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7176463B2 (en) * 2004-07-15 2007-02-13 Honeywell International, Inc. Method and apparatus for large signal detection in passive infrared sensor applications

Similar Documents

Publication Publication Date Title
SE8800625D0 (en) DEVICE FOR INFRARED RADIO DETECTION
ES8206676A1 (en) Machine operator protection system
EP0250841A3 (en) Method of remotely measuring the temperature of a body, and arrangement therefor
DE3479691D1 (en) Fire detector equipped with sensor
JPS57101872A (en) Copying machine
FR2379290A1 (en) Air bubble detector for blood transfusion unit - with IR rays passed through catheter tube by air bubble to be picked up by detector which actuates alarm and cuts off blood supply
JPS5770995A (en) Fan
DE59510989D1 (en) smoke detector
JPS6451159A (en) Air cleaner
JPS6435326A (en) Temperature detector
JPS56147025A (en) Temperature detector for microwave oven
JPS6488392A (en) Human body position detecting device
JPS55163421A (en) Fire detector employing pyroelectric infrared ray detector
JPS547641A (en) High-frequency heating device
JPS6413700A (en) Automatic water shortage warning device
JPS54162235A (en) Abnormal condition monitoring device for tube bulb sealing burner
JPS53114380A (en) Tomographic pickup unit by radiation
JPS5728275A (en) Automatic ri monitor system having self-diagnostic function
JPS6456994A (en) Electric fan
JPS5784323A (en) Device for sensing heated material
JPS5274142A (en) High frequency heater
JPS55151796A (en) Circuit for preventing destruction of x-ray tube
JPS5726300A (en) Detector of dust stuck to turbo unit
JPH01165595U (en)
JPS6479544A (en) Safety device for warm-air heater