JPS597446U

JPS597446U - Recording body detection device of recording device

Info

Publication number: JPS597446U
Application number: JP10177782U
Authority: JP
Inventors: 茂山崎
Original assignee: 株式会社リコー
Priority date: 1982-07-07
Filing date: 1982-07-07
Publication date: 1984-01-18

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

[Brief explanation of the drawing]

第１図は本考案の記録体検出装置を有する記録装置の概
略図、第２図はその記録体カセット部分を示す斜視図、
第３図は記録装置本体から引き出された引き出し部分及
びその引き出し部分にセットされる記録体カセット部分
を示す第１図と同様の図、第４図は共通の反射型光セン
サーを用いた記録体有無−副走査同期検知回路例、第５
図はその光センサー出力とコンパレータの基準電圧との
関係を示す図、そして第６図はこの検知回路を含む検出
装置の具体例を示す図である。１・・・・・・記録体、１ａ・・・・・・塗布部、１ｂ
・・・・・・未塗布部（同期信号発生用マーク）、４・
・・・・・現像部、５・・・・・・光センサ−，９・・
・・・・転写部、１０・・・・・・給紙部、１５・・・
・・・引出し、１８・・・・・・記録体有無−副走査検
知器、１９・・・・・・引出しセット検知器、２０・・
・・・・制御ユニット。第３図第４図FIG. 1 is a schematic diagram of a recording apparatus having a recording body detection device of the present invention, and FIG. 2 is a perspective view showing a recording body cassette portion thereof.
Figure 3 is a diagram similar to Figure 1, showing the drawer section pulled out from the main body of the recording device and the recording body cassette section set in the pullout section, and Figure 4 is a view showing a recording body using a common reflective optical sensor. Presence-example of sub-scanning synchronization detection circuit, 5th
The figure shows the relationship between the optical sensor output and the reference voltage of the comparator, and FIG. 6 is a diagram showing a specific example of a detection device including this detection circuit. 1...Recording body, 1a...Applying part, 1b
・・・・・・Uncoated area (mark for synchronization signal generation), 4.
...Development section, 5... Optical sensor, 9...
...Transfer section, 10...Paper feed section, 15...
...Drawer, 18... Recording material presence/absence - sub-scanning detector, 19... Drawer set detector, 20...
····Controller unit. Figure 3 Figure 4

Claims

[Scope of utility model registration request]

In an image recording device that performs sequence control by setting a cassette-shaped recording medium in a drawer that can be easily inserted and removed, and synchronizing the sub-scanning of the recording medium itself, a recording medium surface that has a synchronization signal generation mark on a part a light sensor consisting of a light source that irradiates light to the recording medium and a light receiving element that receives light from the recording medium caused by the light source;
A first comparator for detecting sub-scanning synchronization, which compares the output of the optical sensor with a reference voltage, and a second comparator, which detects the presence or absence of a recording medium, which compares the output of the optical sensor with a second reference voltage. recording body detection device.