JPS59176985U - paper detection device - Google Patents
paper detection deviceInfo
- Publication number
- JPS59176985U JPS59176985U JP7122383U JP7122383U JPS59176985U JP S59176985 U JPS59176985 U JP S59176985U JP 7122383 U JP7122383 U JP 7122383U JP 7122383 U JP7122383 U JP 7122383U JP S59176985 U JPS59176985 U JP S59176985U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- paper
- absence
- output voltage
- determination reference
- 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
Links
Landscapes
- Controlling Sheets Or Webs (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示すブロック図、第２図は
第１図に示す実施例の動作を説明するためのタイムチャ
ートである。
図において、１・・・・・・検出回路、２・・・・・・
アナログディジタル変換回路、３・・・・・・用紙有無
判定回路、４・・・・・・比較回路、５・・・・・・出
力電圧切替え回路、Ｃ・・・・・・用紙有無判定基準電
圧、Ｄ・・・・・・障害予知電圧、Ｅ・・・・・・障害
予知信号。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a time chart for explaining the operation of the embodiment shown in FIG. In the figure, 1...detection circuit, 2...
Analog-digital conversion circuit, 3...Paper presence/absence determination circuit, 4...Comparison circuit, 5...Output voltage switching circuit, C...Paper presence/absence determination standard Voltage, D...Fault prediction voltage, E...Fault prediction signal.
Claims (1)
力電圧を弁別して用紙のありなしに対応するそれぞれ異
なる電圧値を出力する電圧弁別手段と、該電圧弁別手段
からの出力電圧と予め設定した用紙有無判定基準電圧と
を比較し前記用紙のありなしを判定する判定手段と、前
記電圧弁別手段からの出力電圧と前記用紙有無判定基準
電圧より高い値に予め定めた障害予知電圧とを比較し一
致がとれたとき障害予知信号を発生する障害予知手段と
、該障害予知信号の発生時に前記光学的用紙検出手段か
らの出力電圧を上昇せしめる切替え手段とを含むことを
特徴とする用紙検出装置。an optical paper detecting means; a voltage discriminating means for discriminating the output voltage from the optical paper detecting means and outputting different voltage values corresponding to the presence or absence of paper; and an output voltage from the voltage discriminating means and a preset value. determining means for determining the presence or absence of the paper by comparing the paper presence/absence determination reference voltage with the paper presence/absence determination reference voltage; and comparing the output voltage from the voltage discrimination means with a failure prediction voltage preset to a value higher than the paper presence/absence determination reference voltage. A paper detecting device characterized in that it includes a fault predicting means that generates a fault predicting signal when a match is found, and a switching means that increases the output voltage from the optical paper detecting means when the fault predicting signal is generated. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7122383U JPS59176985U (en) | 1983-05-13 | 1983-05-13 | paper detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7122383U JPS59176985U (en) | 1983-05-13 | 1983-05-13 | paper detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59176985U true JPS59176985U (en) | 1984-11-27 |
Family
ID=30201372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7122383U Pending JPS59176985U (en) | 1983-05-13 | 1983-05-13 | paper detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59176985U (en) |
-
1983
- 1983-05-13 JP JP7122383U patent/JPS59176985U/en active Pending
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