JPS5827244U - image forming device - Google Patents
image forming deviceInfo
- Publication number
- JPS5827244U JPS5827244U JP11888081U JP11888081U JPS5827244U JP S5827244 U JPS5827244 U JP S5827244U JP 11888081 U JP11888081 U JP 11888081U JP 11888081 U JP11888081 U JP 11888081U JP S5827244 U JPS5827244 U JP S5827244U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- transfer
- image forming
- detector
- transfer medium
- 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
Landscapes
- Controlling Sheets Or Webs (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面はこの考案の一実施例を示すもので、第１図は転写
部近傍の概略構成図、第２図は電気回路の要部を示す図
、第３図ａは受信機の出力信号波形図、同図すは信号処
理回路の出力信号波形図である。
１・・・・・・搬送路、４・・・・・・感光体ドラム（
転写体）、Ｐ・・・・・・用紙（被転写媒体、７，１０
・・・・・・超音波送信器、８，１１・・・・・・超音
波受信機、９．１２・・間第１、第２の超音波検知器、
２０・・・・・・送信器ドライバ、３１．３２・・・・
・・信号処理回路、３９・・・・・・制御部、４０・・
・・・・駆動部。The drawings show one embodiment of this invention. Fig. 1 is a schematic diagram of the structure near the transfer section, Fig. 2 is a diagram showing the main part of the electric circuit, and Fig. 3a is a diagram of the output signal waveform of the receiver. , which is an output signal waveform diagram of the signal processing circuit. 1... Conveyance path, 4... Photosensitive drum (
transfer body), P... paper (transfer medium, 7, 10
... Ultrasonic transmitter, 8, 11... Ultrasonic receiver, 9.12... First and second ultrasonic detectors,
20... Transmitter driver, 31.32...
...Signal processing circuit, 39...Control unit, 40...
····Drive part.
Claims (1)
写媒体に対して転写像を与える転写体を有する画像形成
装置において、前記転写体の手前の搬送路近傍に設けら
れ所定周波数の超音波を発振する超音波送信器およびそ
の超音波を受信する超音波受信器から構成され、前記被
転写媒体を検知する第１の超音波検知器と、前記転写体
の後の搬送路近傍に設けられ所定周波数の超音波を発振
する超音波送信器およびその超音波を受信する超音波受
信器から構成され、前記被転写媒体を検知する第２の超
音波検知器と、前記第１の超音波検知器により被転写媒
体の前端が検知されたとき転写制御を開始し、第２の超
音波検知器により被転写媒体の後端が検知されたとき転
写制御を終了する制御手段とを具備したことを特徴とす
る画像形成装置。In an image forming apparatus that includes a transfer body that is provided in the middle of a conveyance path that conveys a transfer medium and provides a transferred image to the transfer medium, an image forming apparatus that is provided near the conveyance path in front of the transfer body and has A first ultrasonic detector, which is composed of an ultrasonic transmitter that oscillates a sound wave and an ultrasonic receiver that receives the ultrasonic wave, and that detects the transfer medium, and a first ultrasonic detector that is provided near the conveyance path after the transfer body. a second ultrasonic detector that detects the transferred medium, and includes an ultrasonic transmitter that emits ultrasonic waves of a predetermined frequency and an ultrasonic receiver that receives the ultrasonic waves; A control means for starting the transfer control when the front end of the transfer medium is detected by the detector and terminating the transfer control when the rear end of the transfer medium is detected by the second ultrasonic detector. An image forming apparatus characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11888081U JPS5827244U (en) | 1981-08-11 | 1981-08-11 | image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11888081U JPS5827244U (en) | 1981-08-11 | 1981-08-11 | image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5827244U true JPS5827244U (en) | 1983-02-22 |
Family
ID=29912973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11888081U Pending JPS5827244U (en) | 1981-08-11 | 1981-08-11 | image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021020796A (en) * | 2019-07-30 | 2021-02-18 | セイコーエプソン株式会社 | Transport device |
-
1981
- 1981-08-11 JP JP11888081U patent/JPS5827244U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021020796A (en) * | 2019-07-30 | 2021-02-18 | セイコーエプソン株式会社 | Transport device |
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