JPH10301384A - トナー検出システム - Google Patents

トナー検出システム

Info

Publication number
JPH10301384A
JPH10301384A JP10107874A JP10787498A JPH10301384A JP H10301384 A JPH10301384 A JP H10301384A JP 10107874 A JP10107874 A JP 10107874A JP 10787498 A JP10787498 A JP 10787498A JP H10301384 A JPH10301384 A JP H10301384A
Authority
JP
Japan
Prior art keywords
toner
sensor
level
detecting
detection system
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
Application number
JP10107874A
Other languages
English (en)
Japanese (ja)
Other versions
JPH10301384A5 (2
Inventor
K Trent Christensen
ケー・トレント・クリステンセン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Original Assignee
Hewlett Packard Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of JPH10301384A publication Critical patent/JPH10301384A/ja
Publication of JPH10301384A5 publication Critical patent/JPH10301384A5/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2965—Measuring attenuation of transmitted waves
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level
    • G03G15/086—Detection or control means for the developer level the level being measured by electro-magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Dry Development In Electrophotography (AREA)
JP10107874A 1997-04-25 1998-04-17 トナー検出システム Pending JPH10301384A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/845-798 1997-04-25
US08/845,798 US5862431A (en) 1997-04-25 1997-04-25 Toner powder level sensing using element and pulse signal and toner powder presence sensing using piezoelectric film

Publications (2)

Publication Number Publication Date
JPH10301384A true JPH10301384A (ja) 1998-11-13
JPH10301384A5 JPH10301384A5 (2) 2005-04-07

Family

ID=25296105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10107874A Pending JPH10301384A (ja) 1997-04-25 1998-04-17 トナー検出システム

Country Status (4)

Country Link
US (1) US5862431A (2)
EP (1) EP0874289B1 (2)
JP (1) JPH10301384A (2)
DE (1) DE69722172T2 (2)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4039744B2 (ja) * 1998-07-15 2008-01-30 富士通株式会社 圧電アクチュエータ
US6494562B1 (en) 1998-09-03 2002-12-17 Hewlett-Packard Company Method and apparatus for identifying a sales channel
US6154619A (en) * 1999-10-27 2000-11-28 Hewlett-Packard Company Apparatus and method for detecting the state of a consumable product such as a replaceable toner cartridge
JP3745231B2 (ja) * 2000-01-13 2006-02-15 キヤノン株式会社 プロセスカートリッジ及び電子写真画像形成装置
EP1138903B1 (en) * 2000-04-01 2004-05-26 Robert Bosch GmbH Time- and event-controlled activation system for charging and discharging piezoelectric elements
US6435024B1 (en) * 2000-09-29 2002-08-20 Heidelberger Druckmaschinen Ag Method and apparatus for determining the level of particulate material in a particulate material collection vessel
US20030016393A1 (en) * 2001-07-20 2003-01-23 Johnson Steven C. Electronic service transaction and method
CN100445703C (zh) 2003-12-23 2008-12-24 茵爱莎公司 用于探测及测量容器内填充物料的非内置方法
US6959598B2 (en) * 2004-02-03 2005-11-01 Emerson Electric Co. Liquid level sensor for appliance and associated method
DE602006009418D1 (de) 2005-11-21 2009-11-05 Mannkind Corp Pulverabgabe und -erfassungsvorrichtung und -verfahren
KR20110040979A (ko) 2008-08-05 2011-04-20 맨카인드 코포레이션 개선된 분말 분배기 모듈 및 분말 분배기 조립체
US9377713B2 (en) * 2012-03-30 2016-06-28 Xerox Corporation Custom color toner production systems and methods
CN105209901B (zh) 2013-02-06 2018-08-24 乌尔蒂莫测量有限责任公司 用于测量容器中自由流动物质的物理性质的非侵入性方法
US9816848B2 (en) 2014-01-23 2017-11-14 Ultimo Measurement Llc Method and apparatus for non-invasively measuring physical properties of materials in a conduit
US20210095958A1 (en) * 2017-10-18 2021-04-01 Hewlett-Packard Development Company, L.P. Orientation sensing
WO2019078842A1 (en) * 2017-10-18 2019-04-25 Hewlett-Packard Development Company, L.P. FLUID LEVEL SENSORS
EP3761556A1 (en) * 2019-07-04 2021-01-06 Basf Se New method for pseudo-random number generation for information encryption
US11947279B2 (en) * 2022-03-23 2024-04-02 Lexmark International, Inc. Material sensing using container vibration
US11947282B2 (en) 2022-03-23 2024-04-02 Lexmark International, Inc. Toner level sensing using toner container vibration
DE102022115591A1 (de) 2022-06-22 2023-12-28 Endress+Hauser SE+Co. KG Modularer vibronischer Multisensor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159786A (en) * 1977-11-11 1979-07-03 E. I. Du Pont De Nemours And Company Periodically excited level control probe
JPS5536874A (en) * 1978-09-08 1980-03-14 Konishiroku Photo Ind Co Ltd Detection method for toner remainder
US4570482A (en) * 1982-04-23 1986-02-18 Murata Manufacturing Co., Ltd. Load-sensitive level detecting device
US4626096A (en) * 1984-04-02 1986-12-02 Canon Kabushiki Kaisha Image forming apparatus for forming a visual image in accordance with image signals
JPS61149826A (ja) * 1984-12-24 1986-07-08 Hitachi Metals Ltd トナ−レベル検知装置
JPS61176962A (ja) * 1985-01-31 1986-08-08 Konishiroku Photo Ind Co Ltd 画像形成装置
JPS61213635A (ja) * 1985-03-19 1986-09-22 Hitachi Metals Ltd 彎曲形圧電振動子式レベルセンサ
US5495315A (en) * 1991-03-27 1996-02-27 Xerox Corporation Level sensing apparatus
JPH0683197A (ja) * 1992-08-28 1994-03-25 Canon Inc 現像装置及び画像形成装置
US5438230A (en) * 1994-02-28 1995-08-01 Motorola, Inc. Piezoelectric material detector

Also Published As

Publication number Publication date
DE69722172T2 (de) 2004-03-25
EP0874289B1 (en) 2003-05-21
US5862431A (en) 1999-01-19
EP0874289A2 (en) 1998-10-28
DE69722172D1 (de) 2003-06-26
EP0874289A3 (en) 1999-03-17

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