US 2013/0076815 A1 · INKJET PRINTER AND PRINTING METHOD

Abstract

In a head (21) of an inkjet printer, a plurality of outlet rows are arranged in a scanning direction, the plurality of outlet rows each having a plurality of outlets arranged in a direction intersecting the scanning direction. The plurality of outlets are each capable of forming dots of a plurality of sizes on printing paper upon receiving different driving signals from an ejection control part (44). In the inkjet printer, under control of the ejection control part (44), some of the outlet rows form dots of only one size out of the plurality of sizes, and the other outlet rows form dots of only another size. In this way, causing the plurality of outlets in each outlet row to form dots of only one size makes it possible to reduce the occurrence of satellite droplets or the like and improve print quality.

Claims12

Dependent claims

An inkjet printer comprising:

a head having a plurality of outlet rows arranged in a predetermined scanning direction, said plurality of outlet rows each having a plurality of outlets arranged in a direction intersecting said scanning direction;
a scanning mechanism for moving an object relative to said head in said scanning direction;
and
an ejection control part for performing control of ink ejection from said head in parallel with the movement of said object relative to said head,
wherein said plurality of outlets are each capable of forming dots of a plurality of sizes on said object upon receiving different driving signals from said ejection control part, and
under control of said ejection control part, at least one of said plurality of outlet rows forms dots of only one size out of said plurality of sizes, and the other outlet row(s) forms dots of at least another size.

3 more elements

Dependencies are inferred from the claim text.

Inkjet printer and printing method

Life of this patent

Inkjet printer and printing method

Life of this patent

Abstract

Claims12