JPS5579166A - Detector for filter exchange time of ink jet recorder - Google Patents

Detector for filter exchange time of ink jet recorder

Info

Publication number
JPS5579166A
JPS5579166A JP15268778A JP15268778A JPS5579166A JP S5579166 A JPS5579166 A JP S5579166A JP 15268778 A JP15268778 A JP 15268778A JP 15268778 A JP15268778 A JP 15268778A JP S5579166 A JPS5579166 A JP S5579166A
Authority
JP
Japan
Prior art keywords
filter
pressure
time
flow rate
outlet side
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
JP15268778A
Other languages
Japanese (ja)
Inventor
Sadao Kakefu
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 JP15268778A priority Critical patent/JPS5579166A/en
Publication of JPS5579166A publication Critical patent/JPS5579166A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ink Jet (AREA)

Abstract

PURPOSE:To quantitatively detect the exchange time of a filter by simple, cheap and highly reliable means wherein the increase of the flow-path resistance of the filter is detected at the inlet side and the outlet side of the filter and form a differential pressure detector. CONSTITUTION:Ink is pressurized by means of a pump, and flows to a filter, an accumulator and a nozzle. A flow rate of 100cc/min continually flows at the fixed velocity of flow and is injected when a flow rate is approximately 5cc/min in case of a single nozzle and the number of nozzles according to a multi-nozzle system is twenty at that time. Pressure loss to the flow rate is value decided by mesh resistance at the initial stage of the filter used, but pressure loss value increases being proportional to the extraneous quantity of dust because dust loads with the augmentation of time used and the passage area of meshes is narrowed. Thus, pressure at the inlet side and the outlet side of a filter unit 1 is each guided to a differential pressure detector 2, a reed switch 3 works when difference between pressure at the inlet side and pressure at the outlet side becomes not less than fixed value, and the time when the filter is exchanged can be grasped.
JP15268778A 1978-12-12 1978-12-12 Detector for filter exchange time of ink jet recorder Pending JPS5579166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15268778A JPS5579166A (en) 1978-12-12 1978-12-12 Detector for filter exchange time of ink jet recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15268778A JPS5579166A (en) 1978-12-12 1978-12-12 Detector for filter exchange time of ink jet recorder

Publications (1)

Publication Number Publication Date
JPS5579166A true JPS5579166A (en) 1980-06-14

Family

ID=15545923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15268778A Pending JPS5579166A (en) 1978-12-12 1978-12-12 Detector for filter exchange time of ink jet recorder

Country Status (1)

Country Link
JP (1) JPS5579166A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63170234U (en) * 1987-04-28 1988-11-07

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501457A (en) * 1973-05-09 1975-01-09
JPS508424A (en) * 1973-05-18 1975-01-28
JPS51150920A (en) * 1975-06-19 1976-12-24 Sharp Corp Ink supplyer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501457A (en) * 1973-05-09 1975-01-09
JPS508424A (en) * 1973-05-18 1975-01-28
JPS51150920A (en) * 1975-06-19 1976-12-24 Sharp Corp Ink supplyer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63170234U (en) * 1987-04-28 1988-11-07

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