Printing apparatus and printing method
AssigneeSCREEN Holdings Co., Ltd.
InventorTakaaki Masuhara
Life of this patent
Estimating the term…
Abstract
A waveform DB for holding a plurality of pieces of waveform data representing respective waveforms of a plurality of drive signals is provided. Each print job is associated with waveform data in a control unit and a waveform number for specifying the waveform data is transmitted from the control unit to a head control unit. The head control unit transfers the waveform number transmitted from the control unit to a head drive board for each print job. The head drive board extracts waveform data corresponding to the waveform number transferred from the head control unit from the waveform DB and gives a drive signal with a waveform corresponding to the extracted waveform data to an inkjet head, for each print job.
Claims19
A printing apparatus that performs printing by ejecting ink onto a print medium, the printing apparatus comprising:
- an ink ejection unit configured to eject ink onto the print medium based on a given drive signal;
- an ejection control unit configured to give a drive signal to the ink ejection unit;
- a waveform data holding unit configured to hold a plurality of pieces of waveform data representing respective waveforms of a plurality of drive signals;
- an attribute acquisition unit configured to acquire an attribute of each print job by analyzing print data constituting each print job;
- and
- an association unit configured to associate each print job with one or more pieces of waveform data among the plurality of pieces of waveform data based on the attribute acquired by the attribute acquisition unit,
- wherein for each print job, the ejection control unit extracts waveform data associated by the association unit from the waveform data holding unit and gives, to the ink ejection unit, a drive signal with a waveform corresponding to the waveform data extracted.
A printing apparatus that performs printing by ejecting ink onto a print medium, the printing apparatus comprising:
- a plurality of print heads configured to eject ink onto the print medium based on a given drive signal;
- an ejection controller configured to give a drive signal to the plurality of print heads;
- a waveform data database configured to hold a plurality of pieces of waveform data representing respective waveforms of a plurality of drive signals;
- and
- a processor configured to acquire an attribute of each print job by analyzing print data constituting each print job and associate each print job with one or more pieces of waveform data among the plurality of pieces of waveform data based on the attribute,
- wherein for each print job, the ejection controller extracts waveform data associated by the processor from the waveform data database and gives, to the plurality of print heads, a drive signal with a waveform corresponding to the waveform data extracted.
A printing method in a printing apparatus including an ink ejection unit configured to eject ink onto a print medium based on a given drive signal, the printing method comprising:
- an attribute acquisition step of acquiring an attribute of each print job by analyzing print data constituting each print job;
- an association step of associating each print job with one or more pieces of waveform data among a plurality of pieces of waveform data based on the attribute acquired in the attribute acquisition step;
- and
- an ejection control step of giving a drive signal to the ink ejection unit,
- wherein the printing apparatus includes a waveform data holding unit configured to hold a plurality of pieces of waveform data representing respective waveforms of a plurality of drive signals, and
- in the ejection control step, for each print job, waveform data associated in the associating step is extracted from the waveform data holding unit and a drive signal with a waveform corresponding to the waveform data extracted is given to the ink ejection unit.
Dependencies are inferred from the claim text.