JPS5694374A - Electrostatic recorder - Google Patents
Electrostatic recorderInfo
- Publication number
- JPS5694374A JPS5694374A JP17028879A JP17028879A JPS5694374A JP S5694374 A JPS5694374 A JP S5694374A JP 17028879 A JP17028879 A JP 17028879A JP 17028879 A JP17028879 A JP 17028879A JP S5694374 A JPS5694374 A JP S5694374A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- insufficiency
- signal reception
- electrodes
- nonrecording
- 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
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To effectively prevent recording obscurity owing toner insufficiency, nonrecording signal reception, etc. by detecting the insufficiency of toner amount by means of a pair of electrodes provided on the outer side of a toner containing vessel. CONSTITUTION:A toner containing vessel 8 is constituted of a nonmagnetic material and two sheets of electrodes 16 are mounted to the outer side thereof, whereby a capacitor 17 is formed. An electrostatic capacity detecting circuit 19 is connected to the electrodes 16 via lead wires 18. With such constitution, the electrostaic capacity of the capacitor 17 changes in proportion to the magnitude of a magnetic toner 9, and therefore this value is detected with the detecting circuit 19 and is passed through a predetermined electric circuit so that the response signal is not transmitted to the transmission side to inhibit the starting of signal reception if the magnetic toner 9 is insufficient. Thereby, the image quality defect or nonrecording signal reception, etc. owing to the insufficiency of the toner 9 is prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17028879A JPS5694374A (en) | 1979-12-28 | 1979-12-28 | Electrostatic recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17028879A JPS5694374A (en) | 1979-12-28 | 1979-12-28 | Electrostatic recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5694374A true JPS5694374A (en) | 1981-07-30 |
Family
ID=15902164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17028879A Pending JPS5694374A (en) | 1979-12-28 | 1979-12-28 | Electrostatic recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5694374A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212861A (en) * | 1983-05-17 | 1984-12-01 | Sharp Corp | Copying machine |
JP2009220584A (en) * | 2009-07-07 | 2009-10-01 | Dainippon Printing Co Ltd | Booklet-like printed matter |
JP2020020888A (en) * | 2018-07-30 | 2020-02-06 | 株式会社リコー | Powder amount detection device, powder supply device, and image forming apparatus |
JP2021026028A (en) * | 2019-07-31 | 2021-02-22 | 株式会社リコー | Powder amount detection device, powder supply device, and image forming apparatus |
JP2021067829A (en) * | 2019-10-24 | 2021-04-30 | 株式会社リコー | Toner level detection device, image forming device, and toner level detection method |
-
1979
- 1979-12-28 JP JP17028879A patent/JPS5694374A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212861A (en) * | 1983-05-17 | 1984-12-01 | Sharp Corp | Copying machine |
JP2009220584A (en) * | 2009-07-07 | 2009-10-01 | Dainippon Printing Co Ltd | Booklet-like printed matter |
JP2020020888A (en) * | 2018-07-30 | 2020-02-06 | 株式会社リコー | Powder amount detection device, powder supply device, and image forming apparatus |
JP2021026028A (en) * | 2019-07-31 | 2021-02-22 | 株式会社リコー | Powder amount detection device, powder supply device, and image forming apparatus |
JP2021067829A (en) * | 2019-10-24 | 2021-04-30 | 株式会社リコー | Toner level detection device, image forming device, and toner level detection method |
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