JPS6393344U - - Google Patents
Info
- Publication number
- JPS6393344U JPS6393344U JP18771486U JP18771486U JPS6393344U JP S6393344 U JPS6393344 U JP S6393344U JP 18771486 U JP18771486 U JP 18771486U JP 18771486 U JP18771486 U JP 18771486U JP S6393344 U JPS6393344 U JP S6393344U
- Authority
- JP
- Japan
- Prior art keywords
- paper
- pulse
- detects
- length
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Controlling Sheets Or Webs (AREA)
Description
第１図は本考案の一実施例の紙葉多重給紙機構
を示す概念図、第２図は正常な給紙状態における
第１図実施例のイメージセンサ１の出力波形図、
第３図は多重給紙状態における第１図実施例のイ
メージセンサ１の出力波形図、第４図は従来の多
重給紙機構を示す概念図である。
１…イメージセンサ、２，２′，５，５′…紙
葉類、３…パルス検出回路、４，４′…ローラ。
FIG. 1 is a conceptual diagram showing a paper sheet multiple feeding mechanism according to an embodiment of the present invention, FIG. 2 is an output waveform diagram of the image sensor 1 of the embodiment shown in FIG. 1 in a normal paper feeding state,
FIG. 3 is an output waveform diagram of the image sensor 1 of the embodiment shown in FIG. 1 in a multiple sheet feeding state, and FIG. 4 is a conceptual diagram showing a conventional multiple sheet feeding mechanism. 1... Image sensor, 2, 2', 5, 5'... Paper sheet, 3... Pulse detection circuit, 4, 4'... Roller.
Claims (1)
紙検出装置において、所定間隔おきに前記紙葉類
の表面上を端から端まで給紙方向に対して直角に
走査し、前記端から端までの長さに相当する時間
幅のパルス信号を前記各走査ごとに送出するイメ
ージセンサと、前記各パルス信号のパルス幅の長
短を調べてそのパルス幅が一様でないときに多重
給紙状態であると判定するパルス検出回路とを備
えていることを特徴とする紙葉類多重給紙検出装
置。 In a multiple paper feed detection device that detects a multiple paper feed state of rectangular paper sheets, the surface of the paper sheet is scanned at a predetermined interval from one end to the other at right angles to the paper feeding direction, and An image sensor that sends out a pulse signal with a time width corresponding to the length to the end for each scan, and checks the length of the pulse width of each pulse signal and detects a multiple paper feeding state when the pulse width is not uniform. What is claimed is: 1. A paper sheet multiple feeding detection device, comprising: a pulse detection circuit that determines that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18771486U JPH0444515Y2 (en) | 1986-12-05 | 1986-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18771486U JPH0444515Y2 (en) | 1986-12-05 | 1986-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6393344U true JPS6393344U (en) | 1988-06-16 |
| JPH0444515Y2 JPH0444515Y2 (en) | 1992-10-20 |
Family
ID=31138432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18771486U Expired JPH0444515Y2 (en) | 1986-12-05 | 1986-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444515Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8142087B2 (en) | 2007-03-30 | 2012-03-27 | Seiko Epson Corporation | Printing device with paper width detector mounted to carriage and method of controlling the printing device |
-
1986
- 1986-12-05 JP JP18771486U patent/JPH0444515Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8142087B2 (en) | 2007-03-30 | 2012-03-27 | Seiko Epson Corporation | Printing device with paper width detector mounted to carriage and method of controlling the printing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0444515Y2 (en) | 1992-10-20 |