JPS6232058U - - Google Patents

Info

Publication number
JPS6232058U
JPS6232058U JP12290585U JP12290585U JPS6232058U JP S6232058 U JPS6232058 U JP S6232058U JP 12290585 U JP12290585 U JP 12290585U JP 12290585 U JP12290585 U JP 12290585U JP S6232058 U JPS6232058 U JP S6232058U
Authority
JP
Japan
Prior art keywords
paper splicing
photoelectric conversion
conversion element
signal
output
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.)
Granted
Application number
JP12290585U
Other languages
Japanese (ja)
Other versions
JPH052522Y2 (en
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 filed Critical
Priority to JP1985122905U priority Critical patent/JPH052522Y2/ja
Publication of JPS6232058U publication Critical patent/JPS6232058U/ja
Application granted granted Critical
Publication of JPH052522Y2 publication Critical patent/JPH052522Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面第１図、第２図は本考案に係る紙継ぎ検出
器の一実施例を示し、第１図はそのブロツク回路
構成図、第２図はタイムチヤート図であり、第３
図は紙継ぎ状態の説明図である。 符号１は原紙、１０は検出器、１１は処理部、
１２は光源、１３は光電変換素子、１６は比較判
定回路、１７はピークホールド回路、１８は出力
タイマである。 1 and 2 show an embodiment of the paper splicing detector according to the present invention, FIG. 1 is a block circuit diagram thereof, FIG. 2 is a time chart, and FIG.
The figure is an explanatory diagram of the paper splicing state. 1 is a base paper, 10 is a detector, 11 is a processing unit,
12 is a light source, 13 is a photoelectric conversion element, 16 is a comparison/judgment circuit, 17 is a peak hold circuit, and 18 is an output timer.

Claims (1)

【実用新案登録請求の範囲】 １ 紙継ぎを検出すべき原紙を挾んで光源と光電
変換素子とを配置し、紙継ぎのない定常状態にお
いて前記光電変換素子が検出する透過光量の値を
記憶し、その値を或る分圧比による判定基準信号
として比較判定回路に送り、該比較判定回路では
前記判定基準信号と前記光電変換素子の検出信号
を比較して、前記光電変換素子からの信号が前記
判定基準信号よりも小さくなると、紙継ぎ検出信
号を出力することを特徴とする紙継ぎ検出器。 ２ 前記定常状態の記憶値は前記光電変換素子か
らの出力をピークホールド回路により求める実用
新案登録請求の範囲第１項に記載の紙継ぎ検出器
。 ３ 前記紙継ぎ検出信号を出力する度に、前記ピ
ークホールド回路をリセツトするようにした実用
新案登録請求の範囲第２項に記載の紙継ぎ検出器
。[Claims for Utility Model Registration] 1. A light source and a photoelectric conversion element are placed between the base paper whose paper splicing is to be detected, and the value of the amount of transmitted light detected by the photoelectric conversion element in a steady state without paper splicing is stored. , the value is sent to a comparison/judgment circuit as a judgment reference signal based on a certain voltage division ratio, and the comparison/judgment circuit compares the judgment reference signal with the detection signal of the photoelectric conversion element to determine whether the signal from the photoelectric conversion element is A paper splicing detector characterized in that a paper splicing detection signal is output when the signal becomes smaller than a determination reference signal. 2. The paper splicing detector according to claim 1, wherein the steady state memory value is determined by a peak hold circuit of the output from the photoelectric conversion element. 3. The paper splicing detector according to claim 2, wherein the peak hold circuit is reset each time the paper splicing detection signal is output.
JP1985122905U 1985-08-09 1985-08-09 Expired - Lifetime JPH052522Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985122905U JPH052522Y2 (en) 1985-08-09 1985-08-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985122905U JPH052522Y2 (en) 1985-08-09 1985-08-09

Publications (2)

Publication Number Publication Date
JPS6232058U true JPS6232058U (en) 1987-02-25
JPH052522Y2 JPH052522Y2 (en) 1993-01-21

Family

ID=31013530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985122905U Expired - Lifetime JPH052522Y2 (en) 1985-08-09 1985-08-09

Country Status (1)

Country Link
JP (1) JPH052522Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277534A (en) * 1985-05-02 1986-12-08 Ricoh Co Ltd Label end detecting system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277534A (en) * 1985-05-02 1986-12-08 Ricoh Co Ltd Label end detecting system

Also Published As

Publication number Publication date
JPH052522Y2 (en) 1993-01-21

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