Jetting head control device, jetting head control method, program, and liquid jet system
AssigneeFUJIFILM Corporation
InventorBaku Nishikawa
Life of this patent
Estimating the term…
Abstract
A jetting head control device supplies a non-printing oscillation voltage to which a non-printing oscillation waveform (342) is applied, to a nozzle in the non-printing period, and supplies a printing oscillation voltage to which a printing oscillation waveform (344) is applied, to a non-jetting nozzle that does not jet liquid in a printing period. In the non-printing oscillation waveform, a pulse width TW is (3/4)×TC<TW<(5/4)×TC in a case in which a natural period of a jetting head is denoted by TC, and an indicator of a total amount of oscillation in which a total amount of oscillation, which is an indicator of oscillation of an ink, is larger than a total amount of oscillation in the printing oscillation waveform is applied.
Claims11
A jetting head control device that supplies a drive voltage to a jetting head provided with a plurality of nozzles to control the jetting head, the jetting head control device comprising:
- one or more processors;
- and
- one or more memories in which a program to be executed by the one or more processors is stored,
- wherein the one or more processors execute the program to:
- supply a non-printing oscillation voltage to which a non-printing oscillation waveform for causing liquid to oscillate without jetting the liquid is applied, to the nozzle in a non-printing period in which a printing operation is not executed;
- and
- supply a printing oscillation voltage to which a printing oscillation waveform for causing the liquid to oscillate without jetting the liquid is applied, to a non-jetting nozzle that does not jet the liquid in a printing period in which the printing operation is executed,
- the non-printing oscillation waveform includes a plurality of pulse waveforms,
- in a case in which a natural period of the jetting head is denoted by TC, a pulse width TW is represented by (3/4)×TC<TW<(5/4)×TC,
- in a case in which Nis an integer of 1 or more and a pulse interval of the plurality of pulse waveforms is denoted by TINT, the pulse interval TINT is represented by TINT=(N+1/2)×(TC/2) using the natural period TC, and the pulse interval is shifted from the natural period TC of the jetting head, and
- an indicator of a total amount of oscillation in which a total amount of oscillation, which is an indicator of oscillation of an ink, is larger than a total amount of oscillation in the printing oscillation waveform is applied.
A jetting head control method for supplying a drive voltage to a jetting head provided with a plurality of nozzles to control the jetting head, the jetting head control method comprising:
- supplying a non-printing oscillation voltage to which a non-printing oscillation waveform for causing liquid to oscillate without jetting the liquid is applied, to the nozzle in a non-printing period in which a printing operation is not executed;
- and
- supplying a printing oscillation voltage to which a printing oscillation waveform for causing the liquid to oscillate without jetting the liquid is applied, to a non-jetting nozzle that does not jet the liquid in a printing period in which the printing operation is executed,
- wherein, the non-printing oscillation waveform includes a plurality of pulse waveforms,
- in a case in which a natural period of the jetting head is denoted by TC, a pulse width TW is represented by (3/4)×TC<TW<(5/4)×TC,
- in a case in which N is an integer of 1 or more and a pulse interval of the plurality of pulse waveforms is denoted by TINT, the pulse interval TINT is represented by TINT=(N+1/2)×(TC/2) using the natural period TC, and the pulse interval is shifted from the natural period TC of the jetting head, and
- an indicator of a total amount of oscillation in which a total amount of oscillation, which is an indicator of oscillation of an ink, is larger than a total amount of oscillation in the printing oscillation waveform is applied.
A liquid jet system comprising:
- a jetting head provided with a plurality of nozzles;
- and
- a jetting head control device that supplies a drive voltage to the jetting head to control the jetting head,
- wherein the jetting head control device includes:
- one or more processors;
- and
- one or more memories in which a program to be executed by the one or more processors is stored,
- the one or more processors execute the program to:
- supply a non-printing oscillation voltage to which a non-printing oscillation waveform for causing liquid to oscillate without jetting the liquid is applied, to the nozzle in a non-printing period in which a printing operation is not executed;
- and
- supply a printing oscillation voltage to which a printing oscillation waveform for causing the liquid to oscillate without jetting the liquid is applied, to a non-jetting nozzle that does not jet the liquid in a printing period in which the printing operation is executed,
- the non-printing oscillation waveform includes a plurality of pulse waveforms,
- in a case in which a natural period of the jetting head is denoted by TC, a pulse width TW is represented by (3/4)×TC<TW<(5/4)×TC,
- in a case in which N is an integer of 1 or more and a pulse interval of the plurality of pulse waveforms is denoted by TINT, the pulse interval TINT is represented by TINT=(N+1/2)×(TC/2) using the natural period TC, and the pulse interval is shifted from the natural period TC of the jetting head, and
- an indicator of a total amount of oscillation in which a total amount of oscillation, which is an indicator of oscillation of an ink, is larger than a total amount of oscillation in the printing oscillation waveform is applied.
Dependencies are inferred from the claim text.