Inkjet printer

摘要

An inkjet printer is provided which can alleviate the degradation of print quality caused by the deviation of ink temperature from a proper temperature range. A controller performs printing while controlling the correspondence of ejection data to nozzle rows so that the ink temperature difference between regions caused by ink ejection operations may be smaller than that in the case where printing is performed with the correspondence of upstream nozzle row ejection data and downstream nozzle row ejection data to an upstream nozzle row and a downstream nozzle row fixed.

主权项

1. An inkjet printer comprising:
an inkjet head including a first nozzle row, a second nozzle rows, and an ink chamber, each of the first and second nozzle rows including a plurality of nozzles arranged at predetermined intervals along a main scanning direction perpendicular to a transport direction of a sheet of paper transported, the nozzles in the first nozzle row being shifted from the nozzles in the second nozzle row in the main scanning direction, the first and second nozzle rows being spaced apart from each other in the transport direction, the ink chamber partitioned into a first region to store ink to be ejected from the first nozzle row and a second region to store ink to be ejected from the second nozzle row, the ink chamber configured to store ink distributed from a common conduit and supplied to the first and second regions, the inkjet head configured to eject ink from the nozzles in the first and second nozzle rows onto the sheet of paper transported; and a controller configured to perform control based on first ejection data and second ejection data so that the nozzles in the first and second nozzle rows perform printing by ejecting the ink line by line, wherein the controller performs printing while controlling a correspondence of the first and second ejection data to the first and second nozzle rows so that an ink temperature difference between the first region and the second region caused by ink ejection operations is made smaller than that in a case where printing is performed with a fixed correspondence of the ejection data to the nozzle rows.