JPS57188364A - Liquid temperature controller - Google Patents

Liquid temperature controller

Info

Publication number
JPS57188364A
JPS57188364A JP7398681A JP7398681A JPS57188364A JP S57188364 A JPS57188364 A JP S57188364A JP 7398681 A JP7398681 A JP 7398681A JP 7398681 A JP7398681 A JP 7398681A JP S57188364 A JPS57188364 A JP S57188364A
Authority
JP
Japan
Prior art keywords
temperature
detector
voltage
heater
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
JP7398681A
Other languages
Japanese (ja)
Inventor
Kazumi Ishima
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 JP7398681A priority Critical patent/JPS57188364A/en
Priority to US06/374,531 priority patent/US4459469A/en
Priority to DE19823218263 priority patent/DE3218263A1/en
Publication of JPS57188364A publication Critical patent/JPS57188364A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/195—Ink jet characterised by ink handling for monitoring ink quality

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Ink Jet (AREA)

Abstract

PURPOSE:To maintain the temperature of an ink flowing to a head constant in a liquid temperature controller of an ink jet printer by varying an apparent reference voltage as the differential voltage between a reference voltage for providing the prescribed temperature and an environmental temperature in accordance with the environmental temperature. CONSTITUTION:Since the first temperature detector 8 in non contact with a head 1 becomes nearly an environmental temperature at the rising time of a heater 6, the output voltage VS of the detector 8 does not considerably vary. Accordingly, the heater 6 is controlled by the output of the second temperature detector 11. When the head 1 is heated and the environmental temperature is raised, the output voltage VS of the detector 8 rises. Thus, an apparent reference voltage of a differential amplifier 10 as the differential voltage between the reference voltage Vref of a reference power source 9 and the output voltage VS of the detector 8 falls, and the power W supplied to the heater 6 is lowered. Therefore, the heating temperature of the heater 6 decreases, the output voltage of the amplifier 10 and the output voltage of the detector 11 are equilibrated, and the temperature Ti of the ink flowing to the head 1 becomes constant.
JP7398681A 1981-05-15 1981-05-15 Liquid temperature controller Pending JPS57188364A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7398681A JPS57188364A (en) 1981-05-15 1981-05-15 Liquid temperature controller
US06/374,531 US4459469A (en) 1981-05-15 1982-05-03 Ink temperature control apparatus for ink jet printing apparatus
DE19823218263 DE3218263A1 (en) 1981-05-15 1982-05-14 Ink temperature control device for an ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7398681A JPS57188364A (en) 1981-05-15 1981-05-15 Liquid temperature controller

Publications (1)

Publication Number Publication Date
JPS57188364A true JPS57188364A (en) 1982-11-19

Family

ID=13533934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7398681A Pending JPS57188364A (en) 1981-05-15 1981-05-15 Liquid temperature controller

Country Status (1)

Country Link
JP (1) JPS57188364A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171191A (en) * 1983-03-17 1984-09-27 松下電器産業株式会社 Method of printing thick film circuit
US5436484A (en) * 1983-12-26 1995-07-25 Hitachi, Ltd. Semiconductor integrated circuit device having input protective elements and internal circuits
US5610089A (en) * 1983-12-26 1997-03-11 Hitachi, Ltd. Method of fabrication of semiconductor integrated circuit device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49101473A (en) * 1972-12-27 1974-09-25
JPS5129840A (en) * 1974-09-06 1976-03-13 Nippon Telegraph & Telephone
JPS5197933A (en) * 1975-02-26 1976-08-28
JPS55152065A (en) * 1979-05-17 1980-11-27 Ricoh Co Ltd Ink jet recorder
JPS5673985A (en) * 1979-11-21 1981-06-19 Pioneer Electronic Corp Playback device with screen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49101473A (en) * 1972-12-27 1974-09-25
JPS5129840A (en) * 1974-09-06 1976-03-13 Nippon Telegraph & Telephone
JPS5197933A (en) * 1975-02-26 1976-08-28
JPS55152065A (en) * 1979-05-17 1980-11-27 Ricoh Co Ltd Ink jet recorder
JPS5673985A (en) * 1979-11-21 1981-06-19 Pioneer Electronic Corp Playback device with screen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171191A (en) * 1983-03-17 1984-09-27 松下電器産業株式会社 Method of printing thick film circuit
US5436484A (en) * 1983-12-26 1995-07-25 Hitachi, Ltd. Semiconductor integrated circuit device having input protective elements and internal circuits
US5436483A (en) * 1983-12-26 1995-07-25 Hitachi, Ltd. Semiconductor integrated circuit device having a first MISFET of an output buffer circuit and a second MISFET of an internal circuit
US5610089A (en) * 1983-12-26 1997-03-11 Hitachi, Ltd. Method of fabrication of semiconductor integrated circuit device

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