JPS6324565U - - Google Patents
Info
- Publication number
- JPS6324565U JPS6324565U JP11778586U JP11778586U JPS6324565U JP S6324565 U JPS6324565 U JP S6324565U JP 11778586 U JP11778586 U JP 11778586U JP 11778586 U JP11778586 U JP 11778586U JP S6324565 U JPS6324565 U JP S6324565U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- signal
- outputs
- generating means
- output signal
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
- Feedback Control In General (AREA)
- Control Of Non-Electrical Variables (AREA)
Description
第１図は本実施例のトナー濃度制御装置を含む
現像器の構成図、第２図は従来のトナー濃度制御
装置と本実施例のそれとの比較特性図である。
５……トナー濃度センサ、７……補給ローラ、
８……トナー濃度検知回路、９……トナー補給制
御回路、１０……モータ、１１……カウンタ、１
２……主制御回路。
FIG. 1 is a block diagram of a developing device including the toner density control device of this embodiment, and FIG. 2 is a comparative characteristic diagram of the conventional toner density control device and that of this embodiment. 5...Toner concentration sensor, 7...Replenishment roller,
8... Toner concentration detection circuit, 9... Toner replenishment control circuit, 10... Motor, 11... Counter, 1
2...Main control circuit.
Claims (1)
ー濃度に応じた出力信号を出力するトナー濃度セ
ンサと、画像形成動作の実行毎にパルス信号を出
力する信号発生手段と、該信号発生手段から発す
るパルス信号をカウントし所定数のパルス信号を
カウントすると満了信号を出力するカウンタ手段
と、前記トナー濃度センサの出力信号又は前記カ
ウンタ手段の満了信号に応じてトナー補給指示信
号を出力するトナー補給制御手段と、前記トナー
補給指示信号により動作するトナー補給手段とを
有することを特徴とするトナー濃度制御装置。 A toner density sensor that outputs an output signal corresponding to the toner density of a two-component developer consisting of toner and carrier, a signal generating means that outputs a pulse signal every time an image forming operation is performed, and a pulse signal that is generated from the signal generating means. and a toner replenishment control means that outputs a toner replenishment instruction signal in response to the output signal of the toner concentration sensor or the expiration signal of the counter means, A toner concentration control device comprising: a toner replenishing means operated by the toner replenishment instruction signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11778586U JPS6324565U (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11778586U JPS6324565U (en) | 1986-07-31 | 1986-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6324565U true JPS6324565U (en) | 1988-02-18 |
Family
ID=31003625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11778586U Pending JPS6324565U (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324565U (en) |
-
1986
- 1986-07-31 JP JP11778586U patent/JPS6324565U/ja active Pending
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