JPH02128585U - - Google Patents
Info
- Publication number
- JPH02128585U JPH02128585U JP3429289U JP3429289U JPH02128585U JP H02128585 U JPH02128585 U JP H02128585U JP 3429289 U JP3429289 U JP 3429289U JP 3429289 U JP3429289 U JP 3429289U JP H02128585 U JPH02128585 U JP H02128585U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- optical sensor
- phototransistor
- light emitting
- emitting diode
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
Description
第１図は本考案の一実施例。第２図は第１図の
タイミングチヤート。
１……発光ダイオード、２……フオトトランジ
スタ、３……光学センサ、４……制御回路、５…
…動作信号、６……検出出力、７，１１……スイ
ツチ、８……バツフア、９，１０……抵抗、１２
……コンパレータ。
Figure 1 shows an embodiment of the present invention. Figure 2 is the timing chart of Figure 1. 1...Light emitting diode, 2...Phototransistor, 3...Optical sensor, 4...Control circuit, 5...
...Operating signal, 6...Detection output, 7, 11...Switch, 8...Buffer, 9, 10...Resistance, 12
……comparator.
Claims (1)
ンジスタ２とでなる光学センサー３を設ける。 (ロ) 光学センサー３の発光ダイオード１及びフ
オトトランジスタ２の電源を制御するためのスイ
ツチ７及びスイツチ１１を設ける。 (ハ) プリントシーケンス動作中を表す動作信号
５を用いてスイツチ７及びスイツチ１１を制御す
る制御回路４を設ける。 以上の構成よりなる光学センサーの電力制御回
路。[Claims for Utility Model Registration] (a) An optical sensor 3 consisting of a light emitting diode 1 and a phototransistor 2 for paper detection is provided. (b) A switch 7 and a switch 11 are provided to control the power of the light emitting diode 1 and phototransistor 2 of the optical sensor 3. (c) A control circuit 4 is provided which controls the switch 7 and the switch 11 using the operation signal 5 indicating that the print sequence is in progress. The optical sensor power control circuit has the above configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3429289U JPH02128585U (en) | 1989-03-28 | 1989-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3429289U JPH02128585U (en) | 1989-03-28 | 1989-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02128585U true JPH02128585U (en) | 1990-10-23 |
Family
ID=31538634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3429289U Pending JPH02128585U (en) | 1989-03-28 | 1989-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02128585U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04188923A (en) * | 1990-11-21 | 1992-07-07 | Sharp Corp | Light receiving element and information equipment using the same |
| JPH04188924A (en) * | 1990-11-21 | 1992-07-07 | Sharp Corp | Optical coupler and information equipment using the same |
| JPH04188922A (en) * | 1990-11-21 | 1992-07-07 | Sharp Corp | Optical coupler and information equipment using the same |
-
1989
- 1989-03-28 JP JP3429289U patent/JPH02128585U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04188923A (en) * | 1990-11-21 | 1992-07-07 | Sharp Corp | Light receiving element and information equipment using the same |
| JPH04188924A (en) * | 1990-11-21 | 1992-07-07 | Sharp Corp | Optical coupler and information equipment using the same |
| JPH04188922A (en) * | 1990-11-21 | 1992-07-07 | Sharp Corp | Optical coupler and information equipment using the same |