JPS5698636A - Printed matter testing device - Google Patents

Printed matter testing device

Info

Publication number
JPS5698636A
JPS5698636A JP7754280A JP7754280A JPS5698636A JP S5698636 A JPS5698636 A JP S5698636A JP 7754280 A JP7754280 A JP 7754280A JP 7754280 A JP7754280 A JP 7754280A JP S5698636 A JPS5698636 A JP S5698636A
Authority
JP
Japan
Prior art keywords
signal
inputs
coincide
circuit
differential
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
JP7754280A
Other languages
Japanese (ja)
Inventor
Yasuo Kato
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP7754280A priority Critical patent/JPS5698636A/en
Publication of JPS5698636A publication Critical patent/JPS5698636A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)

Abstract

PURPOSE:To detect precisely the bad printing like spot, by sending error signal, when the differential value of the picture information exceeds the preset value, if that differential information signal does not coincide comparing with the corresponding differential information signal in the memory. CONSTITUTION:The detected signal of printed matter out of the light receiving element 12011 is differentiated by the differential circuit 401 and that signal is compared with three kinds of preset values of presetter 405-407 by the comparator 402-404, and the signal which exceeds the preset value makes output to gate 411- 413 via single stable multi 408-410, along with inputs to address controller 414. By that signal AR2, the count signal CV of decoder 200 inputs to comparing circuit 422-424 via contact point (b) of the change-over circuit, along with the position signal MP1-MP3 from the memory 421 inputs also. If both coincide, the signal from the single stable multi 425-427 inputs to the gate circuit 411-413, and when both input signals do not coincide, error signal ER3-ER5 are developed. Thus it is able to detect precisely the bad printing like spot.
JP7754280A 1980-06-09 1980-06-09 Printed matter testing device Pending JPS5698636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7754280A JPS5698636A (en) 1980-06-09 1980-06-09 Printed matter testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7754280A JPS5698636A (en) 1980-06-09 1980-06-09 Printed matter testing device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP105180A Division JPS5698634A (en) 1980-01-09 1980-01-09 Printed matter testing device

Publications (1)

Publication Number Publication Date
JPS5698636A true JPS5698636A (en) 1981-08-08

Family

ID=13636880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7754280A Pending JPS5698636A (en) 1980-06-09 1980-06-09 Printed matter testing device

Country Status (1)

Country Link
JP (1) JPS5698636A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155465A (en) * 1984-01-25 1985-08-15 Toppan Printing Co Ltd Printing machine
JPS6446877A (en) * 1987-08-17 1989-02-21 Ryobi Ltd Print effect measuring instrument
US5780794A (en) * 1996-01-18 1998-07-14 Niles Parts Co., Ltd. Composite switch lever for automobiles with mechanically-coupled switch knobs
JP2008114655A (en) * 2006-11-01 2008-05-22 Denso Corp Illumination control device for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312377A (en) * 1976-07-20 1978-02-03 Nippon Steel Corp Inspecting apparatus for surface
JPS55162190A (en) * 1979-05-31 1980-12-17 Radioelectrique Comp Ind Machine for checking and selecting printed paper sheet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312377A (en) * 1976-07-20 1978-02-03 Nippon Steel Corp Inspecting apparatus for surface
JPS55162190A (en) * 1979-05-31 1980-12-17 Radioelectrique Comp Ind Machine for checking and selecting printed paper sheet

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155465A (en) * 1984-01-25 1985-08-15 Toppan Printing Co Ltd Printing machine
JPH0461774B2 (en) * 1984-01-25 1992-10-02 Totsupan Insatsu Kk
JPS6446877A (en) * 1987-08-17 1989-02-21 Ryobi Ltd Print effect measuring instrument
JPH07104939B2 (en) * 1987-08-17 1995-11-13 リョービ株式会社 Printing effect measuring device
US5780794A (en) * 1996-01-18 1998-07-14 Niles Parts Co., Ltd. Composite switch lever for automobiles with mechanically-coupled switch knobs
JP2008114655A (en) * 2006-11-01 2008-05-22 Denso Corp Illumination control device for vehicle

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