JPS54147835A - Charge phase detecting method of ink jet printing - Google Patents

Charge phase detecting method of ink jet printing

Info

Publication number
JPS54147835A
JPS54147835A JP5622478A JP5622478A JPS54147835A JP S54147835 A JPS54147835 A JP S54147835A JP 5622478 A JP5622478 A JP 5622478A JP 5622478 A JP5622478 A JP 5622478A JP S54147835 A JPS54147835 A JP S54147835A
Authority
JP
Japan
Prior art keywords
phase
pulses
charge
retrieval
frequency components
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
JP5622478A
Other languages
Japanese (ja)
Inventor
Masanori Horiie
Koichiro Jinnai
Kyuhachiro Iwasaki
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 JP5622478A priority Critical patent/JPS54147835A/en
Priority to US06/033,125 priority patent/US4217595A/en
Publication of JPS54147835A publication Critical patent/JPS54147835A/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
    • B41J2/115—Ink jet characterised by jet control synchronising the droplet separation and charging time
    • 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
    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01—Embodiments of or processes related to ink-jet heads
    • B41J2202/06—Heads merging droplets coming from the same nozzle

Abstract

PURPOSE:To narrow the range of the high amplitude frequency components contributing to pulse formation and make designing of the amplifier amplifying charge pulses easy by letting the pulse width of phase retrieval pulses be several times the phase shift angle 2pi/n of 1 step. CONSTITUTION:Charge voltage is applied to a charging electrode 3 via amplifier AMP 2 based on the output pulses of a retrieval signal generator 8 at the phase retrieval and based on the output pulses of a charge signal generator 9 at the printing recording. At the charging phase detecting, a phase setting circuit 10 and a charging detecting circuit 11 are energized and the output pulses of the retrieval signal generator 9 are subsequently phase shifted by the phase setting circuit 10 until the charge detecting circuit 11 detects adequate charges. Making the pulse width of said output poulses to the wide pulse widths of several times of 2pi/n subsequently with respecto to the excitation signal b narrows the range of the high amplitude frequency components which contribute to pulse formation out of the total frequency components of the phase rtrieval pulses and facilitates designing of the amplifier.
JP5622478A 1978-04-27 1978-05-12 Charge phase detecting method of ink jet printing Pending JPS54147835A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5622478A JPS54147835A (en) 1978-05-12 1978-05-12 Charge phase detecting method of ink jet printing
US06/033,125 US4217595A (en) 1978-04-27 1979-04-25 Charging phase control device for ink jet recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5622478A JPS54147835A (en) 1978-05-12 1978-05-12 Charge phase detecting method of ink jet printing

Publications (1)

Publication Number Publication Date
JPS54147835A true JPS54147835A (en) 1979-11-19

Family

ID=13021127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5622478A Pending JPS54147835A (en) 1978-04-27 1978-05-12 Charge phase detecting method of ink jet printing

Country Status (1)

Country Link
JP (1) JPS54147835A (en)

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