JPS5896560U - Toner density control device - Google Patents
Toner density control deviceInfo
- Publication number
- JPS5896560U JPS5896560U JP19509681U JP19509681U JPS5896560U JP S5896560 U JPS5896560 U JP S5896560U JP 19509681 U JP19509681 U JP 19509681U JP 19509681 U JP19509681 U JP 19509681U JP S5896560 U JPS5896560 U JP S5896560U
- Authority
- JP
- Japan
- Prior art keywords
- reference pattern
- density
- control device
- pattern
- light source
- 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.)
- Granted
Links
Landscapes
- Wet Developing In Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Dry Development In 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
第１図は本考案を実施するのに適する一例としての乾式
電子写真装置の構成図、第２図は基準パターンを説明し
たコンタクトガラス部分の斜視図、第３図は本考案によ
るトナー濃度制御装置の斜視図、第４図の他の実施例に
係るトナー濃度制御装置の斜視図である。
４・・・・・・基準パターン、５．１８・・・・・・可
動遮蔽板、６．７・・・・・・方向切換片、８，８０・
・・・・・ばね、９・・・・・・ソレノイド、９００・
・・・・・取付片、Ｍ・・・・・・モーター、ｗｌ、
ｗ２． ｗ、、 ｗ、・・・・・・ワイヤー。FIG. 1 is a configuration diagram of a dry electrophotographic apparatus as an example suitable for implementing the present invention, FIG. 2 is a perspective view of a contact glass portion explaining a reference pattern, and FIG. 3 is a toner density control device according to the present invention. FIG. 5 is a perspective view of a toner concentration control device according to another embodiment of FIG. 4; 4...Reference pattern, 5.18...Movable shielding plate, 6.7...Direction switching piece, 8,80.
... Spring, 9 ... Solenoid, 900.
...Mounting piece, M...Motor, wl,
w2. w,, w,...wire.
Claims (1)
て可視像化される、濃度検出用の画像パターンの画像濃
度を検出して、これを一定の基準値と比較し、基準値以
下と判定された際には適宜トナーを補給する等の処置を
講じることにより、原稿画像に対応して可視像化される
画像の濃度を一定水準に保つ様にしている電子写真複写
機等におけるトナー濃度制御装置において、 露光光源と基準パターンとの間に設けられたモード切換
用の板であって、基準パターンを上記露光光源からの光
より遮蔽するに足る広さの遮蔽部と基準パターンを上記
露光光源からの光に曝し得る大きさの開口部を有する可
動遮蔽板と、この可動遮蔽板を移動させる手段であって
、上記遮蔽部を上記基準パターンに重ねる遮蔽モードと
、上記開口部を上記基準パターンに重ねる露光モードに
切換制御するモード切換手段を具備していることを特徴
とするトナー濃度制御装置。[Claims for Utility Model Registration] Detecting the image density of an image pattern for density detection, which is visualized as a pattern corresponding to a reference pattern for determining developing ability, and comparing this with a certain reference value. , an electronic photograph that maintains the density of the visualized image corresponding to the original image at a certain level by taking appropriate measures such as replenishing toner when it is determined that the density is below the standard value. In a toner density control device for a copying machine, etc., a mode switching plate is provided between an exposure light source and a reference pattern, and the shielding portion is wide enough to shield the reference pattern from light from the exposure light source. and a movable shielding plate having an opening large enough to expose the reference pattern to the light from the exposure light source, means for moving the movable shielding plate, and a shielding mode in which the shielding portion overlaps the reference pattern; A toner density control device comprising a mode switching means for controlling switching to an exposure mode in which the aperture overlaps the reference pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19509681U JPS5896560U (en) | 1981-12-24 | 1981-12-24 | Toner density control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19509681U JPS5896560U (en) | 1981-12-24 | 1981-12-24 | Toner density control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5896560U true JPS5896560U (en) | 1983-06-30 |
| JPH0138602Y2 JPH0138602Y2 (en) | 1989-11-17 |
Family
ID=30108381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19509681U Granted JPS5896560U (en) | 1981-12-24 | 1981-12-24 | Toner density control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5896560U (en) |
-
1981
- 1981-12-24 JP JP19509681U patent/JPS5896560U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0138602Y2 (en) | 1989-11-17 |
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