Method of inspecting an inkjet head and the inspected inkjet head
View Patent ↗A driving waveform which an inkjet head filled with inspecting ink shows is measured. The measured driving waveform is corrected based on a correlation formula, which is obtained beforehand based on image recording ink the inkjet head uses for image recording. The inkjet head is set to have a driving waveform based on a result of correction.
1. An inkjet head inspecting method comprising:
filling an inkjet head with inspecting ink;
measuring a driving waveform shown by the inkjet head;
applying the measured driving waveform to one of a plurality of ranks determined based on a minimum resolution unit of the driving waveform; and
performing a printing test based on a driving waveform corresponding to the rank to which the measured driving waveform is applied;
correcting the measured driving waveform based on a correlation formula, which is obtained beforehand based on image recording ink used by the inkjet head for image recording;
setting the inkjet head to have a driving waveform based on a result of the correction;
wherein the inspecting ink contains a dyeing agent.
2. An inkjet head inspecting method according to claim 1 , further comprising adding a correction value to the measured waveform, wherein the correction value is obtained based on standard ink serving as a standard of the inspecting ink.
3. An inkjet head inspecting method according to claim 2 , wherein the standard ink lacks the dyeing agent contained in the inspecting ink.
4. An inkjet head inspecting method according to claim 1 , wherein the image recording ink comprises oil ink.
5. An inkjet head inspecting method according to claim 1 , wherein the image recording ink comprises ultraviolet ink.
6. An inkjet head inspecting method comprising:
filling an inkjet head with inspecting ink;
measuring a driving voltage shown by the inkjet head;
adding a correction value to the measured voltage, wherein the correction value is obtained based on standard ink serving as a standard of the inspecting ink;
correcting the measured driving voltage based on a correlation formula, which is obtained beforehand based on image recording ink used by the inkjet head image recording;
setting the inkjet head to have a driving voltage based on a result of the correction; and
performing a printing test based on the driving voltage set for the inkjet head,
wherein the inspecting ink contains a dyeing agent.
7. An inkjet head inspecting method according to claim 6 , wherein the standard ink lacks the dyeing agent contained in the inspecting ink.
8. An inkjet head inspecting method according to claim 6 , wherein the image recording ink comprises oil ink.
9. An inkjet head inspecting method according to claim 6 , wherein the image recording ink comprises ultraviolet ink.