JPS5581165A - Ink feeder for ink jet plotter - Google Patents

Ink feeder for ink jet plotter

Info

Publication number
JPS5581165A
JPS5581165A JP15527478A JP15527478A JPS5581165A JP S5581165 A JPS5581165 A JP S5581165A JP 15527478 A JP15527478 A JP 15527478A JP 15527478 A JP15527478 A JP 15527478A JP S5581165 A JPS5581165 A JP S5581165A
Authority
JP
Japan
Prior art keywords
ink
pump
head
droplets
viscosity
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
JP15527478A
Other languages
Japanese (ja)
Inventor
Tatsuya Furukawa
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 JP15527478A priority Critical patent/JPS5581165A/en
Publication of JPS5581165A publication Critical patent/JPS5581165A/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
    • B41J2/175—Ink supply systems ; Circuit parts therefor

Landscapes

  • Ink Jet (AREA)

Abstract

PURPOSE:To maintain a constant delivery pressure for a head by using a pulsationless rotary pump and controlling the revolution rate of a driving motor for the rotary pump based on changes in ink viscosity. CONSTITUTION:In an ink jet plotter, ink is converted into ink droplets by a head 5 under a pump pressure, and the filght direction of the droplets is controlled electrostatically. In the plotter, a pulsationless rotary pump 3 is used as the pump for applying a pressure to the head 5, and a driving motor for the pump 3 is connected to a control unit 20 consiting of a viscometer 21 for detecting ink viscosity and a motor driving circuit 22 for controlling the revolution rate of the motor according to the detected values. The viscometer 21 is fitted on the side portion of an ink reservoir 2; viscosity is determined through detection of the dropping period of droplets 24 which drop from a down-facing nozzle 23.
JP15527478A 1978-12-14 1978-12-14 Ink feeder for ink jet plotter Pending JPS5581165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15527478A JPS5581165A (en) 1978-12-14 1978-12-14 Ink feeder for ink jet plotter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15527478A JPS5581165A (en) 1978-12-14 1978-12-14 Ink feeder for ink jet plotter

Publications (1)

Publication Number Publication Date
JPS5581165A true JPS5581165A (en) 1980-06-18

Family

ID=15602312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15527478A Pending JPS5581165A (en) 1978-12-14 1978-12-14 Ink feeder for ink jet plotter

Country Status (1)

Country Link
JP (1) JPS5581165A (en)

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