JPS5573563A - Ink feed pump of ink jet printer - Google Patents

Ink feed pump of ink jet printer

Info

Publication number
JPS5573563A
JPS5573563A JP14767778A JP14767778A JPS5573563A JP S5573563 A JPS5573563 A JP S5573563A JP 14767778 A JP14767778 A JP 14767778A JP 14767778 A JP14767778 A JP 14767778A JP S5573563 A JPS5573563 A JP S5573563A
Authority
JP
Japan
Prior art keywords
stroke
ink
cam plate
time
cam
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.)
Granted
Application number
JP14767778A
Other languages
Japanese (ja)
Other versions
JPS6243074B2 (en
Inventor
Sadao Kakefu
Yutaka Kodama
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 JP14767778A priority Critical patent/JPS5573563A/en
Publication of JPS5573563A publication Critical patent/JPS5573563A/en
Publication of JPS6243074B2 publication Critical patent/JPS6243074B2/ja
Granted 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
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17596—Ink pumps, ink valves

Landscapes

  • Reciprocating Pumps (AREA)
  • Ink Jet (AREA)

Abstract

PURPOSE:To miniaturize a drive motor, by controlling the pulsation of this pump within a small range wherein the shape of an eccentric cam is formed so that a discharge stroke become larger than a suction stroke. CONSTITUTION:A cam plate 14 is used in place of a conventional eccentric cam roller, and manufactured in shape that a discharge stroke becomes larger than a suction stroke. The cam plate 14 is contacted with a roller 15 mounted to a reciprocating motion material, and the reciprocating mortion material 5 is driven by the revolution of the cam plate 14. The cam portion between 0- 300 deg. shows the discharge stroke and a portion between 300- 360 deg. the suction stroke, and these strokes are thereafter repeated. Since the suction stroke is shortened up to one third time as compared to conventional devices during the time when the rotary phase of the cam plate is 300- 360 deg., the stroke is shifted to the discharge stroke only by volume corresponding to one third time of ink discharging volume, and the pressure drop of an accumulator becomes maximum when the drop is approximately one third of conventional device. The ink discharge stroke is long as compared to conventional devices during the time when the rotary phase of the cam plate 14 is 360 - 660 deg., and the quantity of ink discharged and injected by the pressure of a spring increases. The width of the variation of ink supply pressure can small be controlled as compared to conventional devices.
JP14767778A 1978-11-29 1978-11-29 Ink feed pump of ink jet printer Granted JPS5573563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14767778A JPS5573563A (en) 1978-11-29 1978-11-29 Ink feed pump of ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14767778A JPS5573563A (en) 1978-11-29 1978-11-29 Ink feed pump of ink jet printer

Publications (2)

Publication Number Publication Date
JPS5573563A true JPS5573563A (en) 1980-06-03
JPS6243074B2 JPS6243074B2 (en) 1987-09-11

Family

ID=15435774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14767778A Granted JPS5573563A (en) 1978-11-29 1978-11-29 Ink feed pump of ink jet printer

Country Status (1)

Country Link
JP (1) JPS5573563A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007260583A (en) * 2006-03-29 2007-10-11 Toppan Printing Co Ltd Inkjet printer
JP2009527674A (en) * 2005-12-02 2009-07-30 エンテグリース，インコーポレイテッド System and method for correcting pressure fluctuations using a motor
JP2012233465A (en) * 2011-05-09 2012-11-29 Ricoh Co Ltd Fluid transferer, fluid filling apparatus and fluid transfer method
US20130266345A1 (en) * 2012-04-09 2013-10-10 Junichi Matsumoto Powder conveyance device and image forming apparatus including same
US9617988B2 (en) 2004-11-23 2017-04-11 Entegris, Inc. System and method for variable dispense position
US9631611B2 (en) 2006-11-30 2017-04-25 Entegris, Inc. System and method for operation of a pump
US9816502B2 (en) 2005-12-02 2017-11-14 Entegris, Inc. System and method for pressure compensation in a pump
WO2019032120A1 (en) * 2017-08-11 2019-02-14 Hewlett-Packard Development Company, L.P Fluid pumps with shifters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161003A (en) * 1974-10-01 1976-05-27 Ott Kg Lewa
JPS5278496A (en) * 1975-11-10 1977-07-01 Varian Associates Liquid chromatograph with excerrent properties
JPS57108249A (en) * 1980-11-05 1982-07-06 Gen Electric High manganese and chromium content austenite type alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161003A (en) * 1974-10-01 1976-05-27 Ott Kg Lewa
JPS5278496A (en) * 1975-11-10 1977-07-01 Varian Associates Liquid chromatograph with excerrent properties
JPS57108249A (en) * 1980-11-05 1982-07-06 Gen Electric High manganese and chromium content austenite type alloy

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9617988B2 (en) 2004-11-23 2017-04-11 Entegris, Inc. System and method for variable dispense position
JP2009527674A (en) * 2005-12-02 2009-07-30 エンテグリース，インコーポレイテッド System and method for correcting pressure fluctuations using a motor
US9816502B2 (en) 2005-12-02 2017-11-14 Entegris, Inc. System and method for pressure compensation in a pump
JP2007260583A (en) * 2006-03-29 2007-10-11 Toppan Printing Co Ltd Inkjet printer
US9631611B2 (en) 2006-11-30 2017-04-25 Entegris, Inc. System and method for operation of a pump
JP2012233465A (en) * 2011-05-09 2012-11-29 Ricoh Co Ltd Fluid transferer, fluid filling apparatus and fluid transfer method
EP2523048A3 (en) * 2011-05-09 2016-06-01 Ricoh Company, Ltd. Fluid transferer, fluid filling apparatus and fluid transfer method
US20130266345A1 (en) * 2012-04-09 2013-10-10 Junichi Matsumoto Powder conveyance device and image forming apparatus including same
WO2019032120A1 (en) * 2017-08-11 2019-02-14 Hewlett-Packard Development Company, L.P Fluid pumps with shifters
CN111148899A (en) * 2017-08-11 2020-05-12 惠普发展公司，有限责任合伙企业 Fluid pump with transposer
CN111148899B (en) * 2017-08-11 2022-09-23 惠普发展公司，有限责任合伙企业 Fluid pump with transposer
US11493030B2 (en) 2017-08-11 2022-11-08 Hewlett-Packard Development Company, L.P. Fluid pumps with shifters

Also Published As

Publication number Publication date
JPS6243074B2 (en) 1987-09-11

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