Nozzle cleaning method, nozzle cleaning device, liquid ejection apparatus, printing apparatus and computer-readable medium

摘要

A nozzle cleaning method has the following steps (A) to (C). (A) A first determination step of determining whether or not there is ejection of a liquid from a liquid ejection nozzle targeted for testing. (B) A second determination step of determining whether or not there is an abnormality in an ejection direction or an ejection condition of a liquid from the liquid ejection nozzle. (C) A cleaning step in which a cleaning process that is different is executed between when a determination is made that there is no ejection of the liquid in the first determination step and when a determination is made that there is an abnormality in the ejection direction or the ejection condition of the liquid in the second determination step on the liquid ejection nozzle that is subjected to determination.