JPH0360095U - - Google Patents
Info
- Publication number
- JPH0360095U JPH0360095U JP12181689U JP12181689U JPH0360095U JP H0360095 U JPH0360095 U JP H0360095U JP 12181689 U JP12181689 U JP 12181689U JP 12181689 U JP12181689 U JP 12181689U JP H0360095 U JPH0360095 U JP H0360095U
- Authority
- JP
- Japan
- Prior art keywords
- paper
- detection sensor
- conveyance
- image forming
- forming apparatus
- 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 10
- 238000005070 sampling Methods 0.000 claims 1
- 230000002123 temporal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Controlling Sheets Or Webs (AREA)
- Paper Feeding For Electrophotography (AREA)
Description
第１図は本考案の一実施例装置による紙検知セ
ンサーの汚れ検出手順を表わしたフロー図、第２
図および第３図は本考案の一実施例における装置
の回路構成を表わしたブロツク線図、第４図ａ，
ｂおよび第５図ａ，ｂは紙検知センサーからの出
力信号を表わした波形線図、第６図は本考案を適
用した複写機の全体を表わした概略側面説明図で
ある。
１００……複写機本体、１０４，１０７，１１
０，２０５，２０６，２０７，２０８……搬送路
、１０６，１０９，１１１，１１２，２１１，２
１２，２１３，２１４……紙検知センサー。
Fig. 1 is a flow diagram showing the procedure for detecting dirt on a paper detection sensor by an apparatus according to an embodiment of the present invention;
3 and 3 are block diagrams showing the circuit configuration of the device in one embodiment of the present invention, and FIG. 4a,
5b and 5a and 5b are waveform diagrams representing output signals from the paper detection sensor, and FIG. 6 is a schematic side view showing the entire copying machine to which the present invention is applied. 100... Copying machine main body, 104, 107, 11
0, 205, 206, 207, 208...Conveyance path, 106, 109, 111, 112, 211, 2
12,213,214...Paper detection sensor.
Claims (1)
紙検知センサーによつて、上記搬送路内における
記録用紙の通過状態を検知するようにした画像形
成装置の紙搬送検出機構において、 上記紙検知センサーから出力される初期のデー
タをあらかじめ格納しておくとともに、前記紙検
知センサーから出力される経時のサンプリングデ
ータと上記初期データとを比較し、その比較結果
に基づいて前記紙検知センサーの汚れ状態を検知
するようにしたセンサー汚れ検知装置を備えてな
ることを特徴とする画像形成装置の紙搬送検出機
構。[Scope of Claim for Utility Model Registration] Paper conveyance of an image forming apparatus in which the state of passage of recording paper in the conveyance path is detected by a paper detection sensor installed in the conveyance path for conveying the recording paper. In the detection mechanism, the initial data output from the paper detection sensor is stored in advance, and the temporal sampling data output from the paper detection sensor is compared with the initial data, and based on the comparison result, A paper conveyance detection mechanism for an image forming apparatus, comprising a sensor dirt detection device configured to detect a dirt state of the paper detection sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12181689U JPH0360095U (en) | 1989-10-18 | 1989-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12181689U JPH0360095U (en) | 1989-10-18 | 1989-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0360095U true JPH0360095U (en) | 1991-06-13 |
Family
ID=31669837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12181689U Pending JPH0360095U (en) | 1989-10-18 | 1989-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0360095U (en) |
-
1989
- 1989-10-18 JP JP12181689U patent/JPH0360095U/ja active Pending
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