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
Links
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
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)
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61277534A (en) * | 1985-05-02 | 1986-12-08 | Ricoh Co Ltd | Label end detecting system |
-
1985
- 1985-08-09 JP JP1985122905U patent/JPH052522Y2/ja not_active Expired - Lifetime
Patent Citations (1)
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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