JPS56118864A - Ink jet printer - Google Patents

Ink jet printer

Info

Publication number
JPS56118864A
JPS56118864A JP2160880A JP2160880A JPS56118864A JP S56118864 A JPS56118864 A JP S56118864A JP 2160880 A JP2160880 A JP 2160880A JP 2160880 A JP2160880 A JP 2160880A JP S56118864 A JPS56118864 A JP S56118864A
Authority
JP
Japan
Prior art keywords
charging
ink droplets
printing operation
excitation
counter
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
JP2160880A
Other languages
Japanese (ja)
Inventor
Takuo Isayama
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 JP2160880A priority Critical patent/JPS56118864A/en
Publication of JPS56118864A publication Critical patent/JPS56118864A/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
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/12—Ink jet characterised by jet control testing or correcting charge or deflection

Abstract

PURPOSE:To discriminate whether printing operation is proper or not by a method wherein the sum of the number of times of charging and the number of ink droplets trapped in a gutter is compared with the number of times of excitation of a vibrator during an actual printing operation, in the ink jet printer of charging-and-deflection type. CONSTITUTION:When the timing of charging at a charging electrode 5 is appropriate, the number of the ink droplets jetted is equal to the number of times of excitation of the vibrator 3, the number of the ink droplets used for printing is equal to the number of times of charging, and the residual ink droplets other than those used for printing are trapped in the gutter 10 after colliding against a pressure-sensitive element 13. Accordingly, if the sum of the count value on a counter 12 for the number of times of charging and the count value on a counter 11 for the number of collisions against the pressure-sensitive element 13 is compared by a comparator 16 with the count value of a counter 11 for the number of times of excitation, a signal discriminating whether the printing operation is proper or not can be obtained during the actual printing operation, and an alarm may be generated by the signal if required.
JP2160880A 1980-02-25 1980-02-25 Ink jet printer Pending JPS56118864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2160880A JPS56118864A (en) 1980-02-25 1980-02-25 Ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2160880A JPS56118864A (en) 1980-02-25 1980-02-25 Ink jet printer

Publications (1)

Publication Number Publication Date
JPS56118864A true JPS56118864A (en) 1981-09-18

Family

ID=12059744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2160880A Pending JPS56118864A (en) 1980-02-25 1980-02-25 Ink jet printer

Country Status (1)

Country Link
JP (1) JPS56118864A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5993357A (en) * 1982-11-18 1984-05-29 Fujitsu Ltd Ink jet recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5993357A (en) * 1982-11-18 1984-05-29 Fujitsu Ltd Ink jet recorder

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