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JPS5639413A - Ink detector for ink jet recorder - Google Patents

Ink detector for ink jet recorder

Info

Publication number
JPS5639413A
JPS5639413A JP11514079A JP11514079A JPS5639413A JP S5639413 A JPS5639413 A JP S5639413A JP 11514079 A JP11514079 A JP 11514079A JP 11514079 A JP11514079 A JP 11514079A JP S5639413 A JPS5639413 A JP S5639413A
Authority
JP
Japan
Prior art keywords
ink
change
existence
load
output voltage
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
JP11514079A
Other languages
Japanese (ja)
Inventor
Shuichi Oota
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP11514079A priority Critical patent/JPS5639413A/en
Publication of JPS5639413A publication Critical patent/JPS5639413A/en
Pending legal-status Critical Current

Links

Landscapes

  • Ink Jet (AREA)

Abstract

PURPOSE: To clearly detect the existence of an ink by electrically excite an electroacoustic transducer element installed inside an ink tank, etc. and detecting a change of the dynamic impedance of load.
CONSTITUTION: The damping admittance of a vibrator is Yd, and the dymanic admittance Ym. Then a sufficiently high circuit constant P is selected. The output voltage Eo of bridge circuit represents a value proportional to vibration speed v according to a publicly known formula. If power supply voltage E1 is now kept constant, it is possible to detect a change the acoustic impedance of load pased on a change of output voltage Eo. Thus it can be distinguished whether a liquid or air is touching a vibration plate. Consequently, the faulty case such as seen in the past does not occur that the existence of ink can hardly be determined due to the fouling of a transparent window.
COPYRIGHT: (C)1981,JPO&Japio
JP11514079A 1979-09-10 1979-09-10 Ink detector for ink jet recorder Pending JPS5639413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11514079A JPS5639413A (en) 1979-09-10 1979-09-10 Ink detector for ink jet recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11514079A JPS5639413A (en) 1979-09-10 1979-09-10 Ink detector for ink jet recorder

Publications (1)

Publication Number Publication Date
JPS5639413A true JPS5639413A (en) 1981-04-15

Family

ID=14655271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11514079A Pending JPS5639413A (en) 1979-09-10 1979-09-10 Ink detector for ink jet recorder

Country Status (1)

Country Link
JP (1) JPS5639413A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58194552A (en) * 1982-05-10 1983-11-12 Canon Inc Ink cassette for ink jet printer
WO2001087626A1 (en) * 2000-05-18 2001-11-22 Seiko Epson Corporation Method and apparatus for detecting consumption of ink
WO2001087627A1 (en) * 2000-05-18 2001-11-22 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus
WO2002004215A1 (en) * 2000-07-07 2002-01-17 Seiko Epson Corporation Liquid container, ink-jet recording apparatus, device and method for controlling the apparatus, liquid consumption sensing device and method
JP2006056058A (en) * 2004-08-18 2006-03-02 Fuji Xerox Co Ltd Non-ejection detecting circuit of inkjet recorder, inspection method of inkjet recorder, and inkjet recorder
JP2006056059A (en) * 2004-08-18 2006-03-02 Fuji Xerox Co Ltd Non-ejection detecting circuit of inkjet recorder, inspection method of inkjet recorder, and inkjet recorder
JP2006256151A (en) * 2005-03-17 2006-09-28 Fuji Xerox Co Ltd Image forming device and liquid ejection state determining method
JP2006272972A (en) * 1999-05-20 2006-10-12 Seiko Epson Corp Liquid container
US7251996B2 (en) 1999-05-20 2007-08-07 Seiko Epson Corporation Liquid detecting piezoelectric device, liquid container and mounting module member

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833853A (en) * 1971-09-03 1973-05-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833853A (en) * 1971-09-03 1973-05-14

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58194552A (en) * 1982-05-10 1983-11-12 Canon Inc Ink cassette for ink jet printer
US7383727B2 (en) 1999-05-20 2008-06-10 Seiko Epson Corporation Liquid cotainer having a liquid consumption detecting device therein
US7251996B2 (en) 1999-05-20 2007-08-07 Seiko Epson Corporation Liquid detecting piezoelectric device, liquid container and mounting module member
JP2006272972A (en) * 1999-05-20 2006-10-12 Seiko Epson Corp Liquid container
JP3824216B2 (en) * 2000-05-18 2006-09-20 セイコーエプソン株式会社 Ink consumption state detection method and inkjet recording apparatus
WO2001087626A1 (en) * 2000-05-18 2001-11-22 Seiko Epson Corporation Method and apparatus for detecting consumption of ink
WO2001087627A1 (en) * 2000-05-18 2001-11-22 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus
WO2002004215A1 (en) * 2000-07-07 2002-01-17 Seiko Epson Corporation Liquid container, ink-jet recording apparatus, device and method for controlling the apparatus, liquid consumption sensing device and method
US7008034B2 (en) * 2000-07-07 2006-03-07 Seiko Epson Corporation Liquid container, ink-jet recording apparatus, device and method for controlling the apparatus, liquid consumption sensing device and method
JP2006056059A (en) * 2004-08-18 2006-03-02 Fuji Xerox Co Ltd Non-ejection detecting circuit of inkjet recorder, inspection method of inkjet recorder, and inkjet recorder
JP2006056058A (en) * 2004-08-18 2006-03-02 Fuji Xerox Co Ltd Non-ejection detecting circuit of inkjet recorder, inspection method of inkjet recorder, and inkjet recorder
JP4561233B2 (en) * 2004-08-18 2010-10-13 富士ゼロックス株式会社 Non-ejection detection circuit for inkjet recording apparatus, inspection method for inkjet recording apparatus, and inkjet recording apparatus
JP4561232B2 (en) * 2004-08-18 2010-10-13 富士ゼロックス株式会社 Non-ejection detection circuit for inkjet recording apparatus, inspection method for inkjet recording apparatus, and inkjet recording apparatus
JP2006256151A (en) * 2005-03-17 2006-09-28 Fuji Xerox Co Ltd Image forming device and liquid ejection state determining method

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