Patent ID: 9630422
Date: 2017-04-25
CPC Classifications: B41J

Claim:
1. A printer comprising: a print executing unit including: a controller configured to control the print executing unit to perform a multi-pass printing for printing a target image on the sheet with a plurality of pass processes, the plurality of pass processes forming a plurality of partial images respectively, two partial images formed with successive two pass processes overlapping partially, wherein K-number of active nozzles consecutively arranged are selected from the plurality of nozzles for each of the plurality of pass processes, dot recording rates of the K-number of active nozzles decreasing at an upstream gradient from a nozzle having a maximum dot recording rate among the dot recording rates of the K-number of active nozzles toward a most-upstream nozzle of the K-number of active nozzles in the conveying direction, the dot recording rates of the K-number of active nozzles decreasing at a downstream gradient from a nozzle having the maximum dot recording rate toward a most-downstream nozzle of the K-number of active nozzles in the conveying direction, wherein the controller is further configured to control the print executing unit to perform: wherein the at least two pass processes includes: