JPS5831554U - Toner remaining amount detection device - Google Patents
Toner remaining amount detection deviceInfo
- Publication number
- JPS5831554U JPS5831554U JP12702181U JP12702181U JPS5831554U JP S5831554 U JPS5831554 U JP S5831554U JP 12702181 U JP12702181 U JP 12702181U JP 12702181 U JP12702181 U JP 12702181U JP S5831554 U JPS5831554 U JP S5831554U
- Authority
- JP
- Japan
- Prior art keywords
- remaining amount
- toner
- detecting
- detection device
- amount detection
- 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
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本実施例の現像器の断面図、第2図は第1図を
矢印Aの方向から見た図、第3図はトナー検出回路図、
第4図はトナー量の分布を示す図、第5図は第2の実施
−を示す図、第6図は第3の実施例を示す図、第7図a
、 bは本考案の第4の実施例を示す図、第8図a、
bは本考案の第5の実施例を示す図、第9図はトナ
ー残量検出回路図、第10図はトナー残量と出力電圧V
Aの関係を示す図、第11図は他のトナー残量検出回路
のブロック図、第、12図は第11図の詳細回路図、第
13図はトナー量と出力電圧V、の関係を示す図、第1
4図はマイクロコンピュータを用いたトナー残量検出回
路図である。
図において、10はトナー、11は電子写真感光ドラム
、12は磁気スリーブ現像ローラ、13は収容筐体、1
5はトナー検知導体、18はコイル状金属性検知導体を
夫々示す。
(Q) 、R。
11 \ 門
1
(α)
11
へ)−1FIG. 1 is a sectional view of the developing device of this embodiment, FIG. 2 is a view of FIG. 1 viewed from the direction of arrow A, and FIG. 3 is a toner detection circuit diagram.
Fig. 4 is a diagram showing the distribution of toner amount, Fig. 5 is a diagram showing the second implementation, Fig. 6 is a diagram showing the third embodiment, and Fig. 7a.
, b is a diagram showing the fourth embodiment of the present invention, FIG. 8a,
b is a diagram showing the fifth embodiment of the present invention, FIG. 9 is a circuit diagram for detecting the remaining amount of toner, and FIG. 10 is a diagram showing the remaining amount of toner and output voltage V.
11 is a block diagram of another toner remaining amount detection circuit, FIG. 12 is a detailed circuit diagram of FIG. 11, and FIG. 13 is a diagram showing the relationship between toner amount and output voltage V. Figure, 1st
FIG. 4 is a circuit diagram for detecting the remaining amount of toner using a microcomputer. In the figure, 10 is a toner, 11 is an electrophotographic photosensitive drum, 12 is a magnetic sleeve developing roller, 13 is a storage case, 1
Reference numeral 5 indicates a toner detection conductor, and reference numeral 18 indicates a coiled metal detection conductor. (Q), R. 11 \ Gate 1 (α) To 11) -1
Claims (1)
内の磁性トナーの残量を検出するトナー残量検知装置に
於て、トナー残量を検出する検知導体を前記現像ローラ
の長手方向に大略平行に配置すると共に、前記検知導体
の表面を絶縁材料により覆ったことを特徴とするトナー
残量検知装置。In a toner remaining amount detection device that detects the remaining amount of magnetic toner in a developing device that develops an electrostatic latent image on a recording medium with a developing roller, a detection conductor for detecting the remaining amount of toner is arranged in the longitudinal direction of the developing roller. A remaining toner amount detecting device characterized in that the detecting conductor is arranged substantially parallel to the detecting conductor, and the surface of the detecting conductor is covered with an insulating material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12702181U JPS5831554U (en) | 1981-08-26 | 1981-08-26 | Toner remaining amount detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12702181U JPS5831554U (en) | 1981-08-26 | 1981-08-26 | Toner remaining amount detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5831554U true JPS5831554U (en) | 1983-03-01 |
JPH028299Y2 JPH028299Y2 (en) | 1990-02-27 |
Family
ID=29920775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12702181U Granted JPS5831554U (en) | 1981-08-26 | 1981-08-26 | Toner remaining amount detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5831554U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53119049A (en) * | 1977-03-26 | 1978-10-18 | Konishiroku Photo Ind Co Ltd | Detecting and controlling method of toner contents in developer and device for the same |
JPS5448250A (en) * | 1977-09-24 | 1979-04-16 | Nec Corp | Detecting mechanism of remaining quantity of toner of magnedry developing device |
-
1981
- 1981-08-26 JP JP12702181U patent/JPS5831554U/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53119049A (en) * | 1977-03-26 | 1978-10-18 | Konishiroku Photo Ind Co Ltd | Detecting and controlling method of toner contents in developer and device for the same |
JPS5448250A (en) * | 1977-09-24 | 1979-04-16 | Nec Corp | Detecting mechanism of remaining quantity of toner of magnedry developing device |
Also Published As
Publication number | Publication date |
---|---|
JPH028299Y2 (en) | 1990-02-27 |
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