JPH0449139U - - Google Patents
Info
- Publication number
- JPH0449139U JPH0449139U JP9003390U JP9003390U JPH0449139U JP H0449139 U JPH0449139 U JP H0449139U JP 9003390 U JP9003390 U JP 9003390U JP 9003390 U JP9003390 U JP 9003390U JP H0449139 U JPH0449139 U JP H0449139U
- Authority
- JP
- Japan
- Prior art keywords
- paper
- light
- feed cassette
- paper feed
- converts
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
Description
第1図は、本考案に係る用紙残量検知装置の一
実施例を示す概略構成図、第2図は、第1図の用
紙残量検知装置の配置例を示す説明図である。
1……用紙、2……給紙カセツト、3……紙検
知センサ、4……スライドレール、31……レー
ザダイオード(光源)、32,33……レンズ、
34……フオトダイオード(受光部)、35……
波形整形回路、36……制御回路。
FIG. 1 is a schematic configuration diagram showing an embodiment of the paper remaining amount detection device according to the present invention, and FIG. 2 is an explanatory diagram showing an example of the arrangement of the paper remaining amount detection device of FIG. 1... Paper, 2... Paper feed cassette, 3... Paper detection sensor, 4... Slide rail, 31... Laser diode (light source), 32, 33... Lens,
34...Photodiode (light receiving section), 35...
Waveform shaping circuit, 36...control circuit.
Claims (1)
給紙カセツト上の用紙の側面に対して側面を横切
る方向に移動しながら照射する発光手段と、 前記発光手段により照射された給紙カセツト上
の用紙の側面からの反射光を受光し電気的信号に
変換する受光手段と、 受光手段によつて変換された電気的信号から給
紙カセツト上の各用紙の端面と用紙間の隙間を検
出する検出手段と、 前記検出手段により検出された検出信号から各
用紙の端面をカウントするカウント手段と、 を有する用紙残量検知装置。[Claims for Utility Model Registration] Light-emitting means for irradiating light with a spot diameter smaller than the thickness of one sheet of paper onto the side surface of the paper on a paper feed cassette while moving in a direction transverse to the side surface; A light-receiving means that receives the reflected light from the illuminated side surface of the paper on the paper feed cassette and converts it into an electrical signal; and a light-receiving means that receives the reflected light from the side surface of the paper on the paper feed cassette and converts it into an electrical signal; A remaining paper amount detection device comprising: a detection means for detecting a gap between sheets; and a counting means for counting the end face of each paper based on a detection signal detected by the detection means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9003390U JPH0449139U (en) | 1990-08-30 | 1990-08-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9003390U JPH0449139U (en) | 1990-08-30 | 1990-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0449139U true JPH0449139U (en) | 1992-04-24 |
Family
ID=31824445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9003390U Pending JPH0449139U (en) | 1990-08-30 | 1990-08-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0449139U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005082341A (en) * | 2003-09-09 | 2005-03-31 | Fuji Xerox Co Ltd | Sheet feeder |
-
1990
- 1990-08-30 JP JP9003390U patent/JPH0449139U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005082341A (en) * | 2003-09-09 | 2005-03-31 | Fuji Xerox Co Ltd | Sheet feeder |