JPS61170560U - - Google Patents
Info
- Publication number
- JPS61170560U JPS61170560U JP5515285U JP5515285U JPS61170560U JP S61170560 U JPS61170560 U JP S61170560U JP 5515285 U JP5515285 U JP 5515285U JP 5515285 U JP5515285 U JP 5515285U JP S61170560 U JPS61170560 U JP S61170560U
- Authority
- JP
- Japan
- Prior art keywords
- printing paper
- feed hole
- paper feed
- detection signal
- printing
- 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 15
- 238000012806 monitoring device Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 1
Landscapes
- Controlling Sheets Or Webs (AREA)
- Handling Of Sheets (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Paper Feeding For Electrophotography (AREA)
Description
第１図及び第２図の本考案監視装置の一実施例
を示す要部概略図、第３図は同上の装置の動作状
態を説明する信号波形図、第４図は従来技術によ
る電子写真方式プリンタの構成を示す概略説明図
、第５図は従来の印刷用紙送行穴検出装置及び印
刷濃度検出装置を示す概略図、第６図は第５図の
検出装置の動作状態を示す信号波形図である。
９…印刷用紙、１４…印刷用紙送り穴、１６…
印刷濃度マーク、２０…反射形光検出器、２１，
２２…信号選別装置、２５…判定手段（カウンタ
）、２６…プリンタ制御装置。
Figures 1 and 2 are schematic diagrams of main parts showing one embodiment of the monitoring device of the present invention, Figure 3 is a signal waveform diagram explaining the operating state of the same device, and Figure 4 is an electrophotographic method according to the prior art. A schematic explanatory diagram showing the configuration of the printer, FIG. 5 is a schematic diagram showing a conventional printing paper feed hole detection device and a printing density detection device, and FIG. 6 is a signal waveform diagram showing the operating state of the detection device in FIG. 5. be. 9...Printing paper, 14...Printing paper feed hole, 16...
Print density mark, 20... Reflective photodetector, 21,
22... Signal sorting device, 25... Judgment means (counter), 26... Printer control device.
Claims (1)
刷用紙に表示された印刷濃度マークと、前記印刷
用紙送り穴と印刷濃度マークの濃度状態を検出す
る検出手段と、前記検出手段による検出信号の出
力パルス数が規定数あるか否かを判定する到定手
段と、前記出力パルス数が規定数以外の場合には
、前記プリンタの印刷駆動を停止させるプリンタ
制御装置とから成る印刷用紙送行状態・印刷濃度
監視装置において、前記印刷用紙に表示される印
刷濃度マークをプリンタの印刷駆動時に前記印刷
用紙送り穴と同列位置に配設されるように設定す
ると共に、前記検出手段は１つの反射形光検出器
を前記印刷用紙送り穴及び印刷濃度マークの通過
位置に設けて構成し、更に前記検出手段と前記判
定手段の信号系路の間には、前記反射形光検出器
の検出信号を印刷用紙送り穴検出信号パルスと印
刷濃度検出信号パルスに選別する信号選別装置を
介在させて、前記印刷用紙送り穴検出信号パルス
と前記印刷濃度検出信号パルスの夫々を前記判定
手段に送るように構成したことを特徴とする電子
写真方式プリンタの印刷用紙送行状態・印刷濃度
監視装置。 A printing paper feed hole of an electrophotographic printer, a printing density mark displayed on the printing paper, a detection means for detecting the density state of the printing paper feed hole and the print density mark, and a detection means output pulse number of a detection signal by the detection means. A printing paper feeding state/print density monitoring device comprising an arrival means for determining whether a specified number of pulses is present, and a printer control device that stops the printing drive of the printer when the number of output pulses is other than the specified number. The printing density mark displayed on the printing paper is set to be disposed in the same position as the printing paper feed hole when the printer is driven to print, and the detection means is configured to set one reflective photodetector to the printing paper. The sensor is provided at a position where the paper feed hole and the print density mark pass, and between the signal path of the detection means and the determination means, the detection signal of the reflection type photodetector is connected to the printing paper feed hole detection signal pulse and the printing paper feed hole detection signal pulse. An electrophotographic printer, characterized in that the electrophotographic printer is configured to include a signal selection device that selects density detection signal pulses so that each of the printing paper feed hole detection signal pulse and the print density detection signal pulse is sent to the determination means. A device for monitoring printing paper feeding status and print density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5515285U JPS61170560U (en) | 1985-04-12 | 1985-04-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5515285U JPS61170560U (en) | 1985-04-12 | 1985-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61170560U true JPS61170560U (en) | 1986-10-22 |
Family
ID=30577559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5515285U Pending JPS61170560U (en) | 1985-04-12 | 1985-04-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61170560U (en) |
-
1985
- 1985-04-12 JP JP5515285U patent/JPS61170560U/ja active Pending
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