JPS61171059U - - Google Patents
Info
- Publication number
- JPS61171059U JPS61171059U JP5213085U JP5213085U JPS61171059U JP S61171059 U JPS61171059 U JP S61171059U JP 5213085 U JP5213085 U JP 5213085U JP 5213085 U JP5213085 U JP 5213085U JP S61171059 U JPS61171059 U JP S61171059U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- toner
- current detection
- amount
- current
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Dry Development In Electrophotography (AREA)
Description
図面はこの考案の一実施例を示し、第１図は全
体の構成図、第２図は現像装置及び制御系の説明
図、第３図はこの考案の電流検出回路を示す回路
図、第４図は作用を示す線図である。
４は現像装置、１１は現像バイアス印加回路、
１４は電流検出回路、１６はトナー供給モータ。
The drawings show one embodiment of this invention, and FIG. 1 is an overall configuration diagram, FIG. 2 is an explanatory diagram of the developing device and control system, FIG. 3 is a circuit diagram showing the current detection circuit of this invention, and FIG. The figure is a diagram showing the effect. 4 is a developing device, 11 is a developing bias application circuit,
14 is a current detection circuit, and 16 is a toner supply motor.
Claims (1)
加回路１１に設けられた電流検出回路１４により
検出して、この電流値に応じてトナー供給モータ
１６を回転制御することにより、トナー消費量に
見合つた量のトナーを現像装置４へ供給するもの
において、上記電流検出回路１４に、予め正方向
に一定の電流を流す手段を設けてなる複写機の電
流検出回路。 The amount of toner consumed during development is detected by the current detection circuit 14 provided in the development bias application circuit 11, and the rotation of the toner supply motor 16 is controlled according to this current value, so that the amount of toner consumed is matched. A current detection circuit for a copying machine that supplies a certain amount of toner to the developing device 4, and the current detection circuit 14 is provided with means for flowing a constant current in the forward direction in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5213085U JPS61171059U (en) | 1985-04-10 | 1985-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5213085U JPS61171059U (en) | 1985-04-10 | 1985-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61171059U true JPS61171059U (en) | 1986-10-23 |
Family
ID=30571804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5213085U Pending JPS61171059U (en) | 1985-04-10 | 1985-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61171059U (en) |
-
1985
- 1985-04-10 JP JP5213085U patent/JPS61171059U/ja active Pending