JPS55143410A - Toner detector - Google Patents
Toner detectorInfo
- Publication number
- JPS55143410A JPS55143410A JP5109779A JP5109779A JPS55143410A JP S55143410 A JPS55143410 A JP S55143410A JP 5109779 A JP5109779 A JP 5109779A JP 5109779 A JP5109779 A JP 5109779A JP S55143410 A JPS55143410 A JP S55143410A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- toner
- container
- electromagnet
- magnetic
- 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
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract 7
- 239000000696 magnetic material Substances 0.000 abstract 3
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To make it possible to detect whether there is magnetic toner without any influence of toner contamination in a toner container by providing a relatively- movable magnet at the non-magnetic material part of the container containing the magnetic toner. CONSTITUTION:On the container wall of toner container 1 made of a non-magnetic material of an Al plate, etc., permanent magnet 6 is supported by a non-magnetic material such as phosphor bronze and this magnet 6 is movable to the position through electromagnet 3. Then, lead switch 8 is put into operation by magnet 5. When container 1 contains a sufficient volume of toner 2, flowing a current through electromagnet 3 to repulse magnet 5 forces magnet 5 to come close to the wall of container 1 and even if the current supply to electromagnet 3 is cut off in this state, magnet 5 stays sticking to the wall of container 1 by the magnetic suction force of toner 2. At the time when toner 2 lessens, on the other hand, cutting off the current supply to electromagnet 3 allows magnet 5 to return the electromagnet 3 side by its weight because of no suction of toner 2 and at this time, magnet 5 put lead switch 8 into operation to detect the position of magnet 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5109779A JPS55143410A (en) | 1979-04-25 | 1979-04-25 | Toner detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5109779A JPS55143410A (en) | 1979-04-25 | 1979-04-25 | Toner detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55143410A true JPS55143410A (en) | 1980-11-08 |
Family
ID=12877299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5109779A Pending JPS55143410A (en) | 1979-04-25 | 1979-04-25 | Toner detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55143410A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195151U (en) * | 1983-06-14 | 1984-12-25 | トヨタ自動車株式会社 | Remaining amount display device for welding wire |
| JPS6366861U (en) * | 1986-10-22 | 1988-05-06 | ||
| US5784665A (en) * | 1996-07-31 | 1998-07-21 | Samsung Electronics Co., Ltd. | Apparatus and method for detecting existence of developing unit and residual amount of toner in image system |
| US5839017A (en) * | 1997-04-09 | 1998-11-17 | Xerox Corporation | Developer level detection system |
| US9519243B2 (en) | 2014-06-02 | 2016-12-13 | Lexmark International, Inc. | Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing |
| US9632477B1 (en) | 2015-12-21 | 2017-04-25 | Lexmark International, Inc. | Systems for detecting an axially moveable member within a toner cartridge |
| US9841722B2 (en) | 2014-06-02 | 2017-12-12 | Lexmark International, Inc. | Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing |
| US10345736B1 (en) | 2018-07-20 | 2019-07-09 | Lexmark International, Inc. | Toner level detection measuring a radius of a rotatable magnet |
| US10429765B1 (en) | 2018-07-05 | 2019-10-01 | Lexmark International, Inc. | Toner container for an image forming device having magnets of varying angular offset for toner level sensing |
| US10451997B1 (en) | 2018-07-20 | 2019-10-22 | Lexmark International, Inc. | Toner level detection measuring an orientation of a rotatable magnet having a varying orientation relative to a pivot axis |
| US10451998B1 (en) | 2018-07-20 | 2019-10-22 | Lexmark International, Inc. | Toner level detection measuring an orientation of a rotatable magnet having a varying radius |
| US10474060B1 (en) | 2018-07-05 | 2019-11-12 | Lexmark International, Inc. | Toner level sensing using rotatable magnets having varying angular offset |
-
1979
- 1979-04-25 JP JP5109779A patent/JPS55143410A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195151U (en) * | 1983-06-14 | 1984-12-25 | トヨタ自動車株式会社 | Remaining amount display device for welding wire |
| JPS6366861U (en) * | 1986-10-22 | 1988-05-06 | ||
| US5784665A (en) * | 1996-07-31 | 1998-07-21 | Samsung Electronics Co., Ltd. | Apparatus and method for detecting existence of developing unit and residual amount of toner in image system |
| US5839017A (en) * | 1997-04-09 | 1998-11-17 | Xerox Corporation | Developer level detection system |
| US9519243B2 (en) | 2014-06-02 | 2016-12-13 | Lexmark International, Inc. | Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing |
| US9841722B2 (en) | 2014-06-02 | 2017-12-12 | Lexmark International, Inc. | Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing |
| US9632477B1 (en) | 2015-12-21 | 2017-04-25 | Lexmark International, Inc. | Systems for detecting an axially moveable member within a toner cartridge |
| US10429765B1 (en) | 2018-07-05 | 2019-10-01 | Lexmark International, Inc. | Toner container for an image forming device having magnets of varying angular offset for toner level sensing |
| US10474060B1 (en) | 2018-07-05 | 2019-11-12 | Lexmark International, Inc. | Toner level sensing using rotatable magnets having varying angular offset |
| US10345736B1 (en) | 2018-07-20 | 2019-07-09 | Lexmark International, Inc. | Toner level detection measuring a radius of a rotatable magnet |
| US10451997B1 (en) | 2018-07-20 | 2019-10-22 | Lexmark International, Inc. | Toner level detection measuring an orientation of a rotatable magnet having a varying orientation relative to a pivot axis |
| US10451998B1 (en) | 2018-07-20 | 2019-10-22 | Lexmark International, Inc. | Toner level detection measuring an orientation of a rotatable magnet having a varying radius |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS55143410A (en) | Toner detector | |
| US2888290A (en) | Door with magnetic catch | |
| JPS5578505A (en) | Attraction type magnetic device | |
| JPS56166763A (en) | Linear motor | |
| JPS6465738A (en) | Moisture-proof switch assembly for electric appliance | |
| AU4736889A (en) | Trip device for an electrical switch and an electrical switch with this trip device | |
| CA2025080A1 (en) | Switch contact actuator with a built-in reed switch | |
| GB1268362A (en) | Improvements in or relating to locking means | |
| GB1490266A (en) | Float switch | |
| JPS57201664A (en) | Ink residual quantity detector | |
| GB1374246A (en) | Electric switch | |
| GB1342419A (en) | Internal combustion engine cooling liqud level alarm | |
| JPS56150774A (en) | Developing device using magnetic toner | |
| JPS6464854A (en) | Ink feed container | |
| JPS56157525A (en) | Input pen | |
| EP0025154A3 (en) | Electric alarm device | |
| SI0717426T1 (en) | An auxiliary modular device for modular circuit-breakers | |
| CH638652GA3 (en) | ||
| JPS56139072A (en) | Linear motor | |
| JPS55102206A (en) | Solenoid | |
| JPS5742029A (en) | Attraction type electromagnetic control shutter | |
| JPS5522746A (en) | Malfunction warning device of electric shutter utilizing electromagnetic device combining permanent magnet | |
| US1239569A (en) | Electrically-controlled releasing means. | |
| FR2339246A1 (en) | High sensitivity electromagnetic release for contact-breaker - has coil with spring and permanent magnet to actuate plunger | |
| JPS643938A (en) | Current detecting device |