Patent ID: 7255411
Filing Date: 2007-08-14
Classification: B41J

Abstract:
1. A liquid ejection control method for controlling ejection of liquid from nozzles arranged in a predetermined feed direction, the nozzles for ejecting liquid onto a medium that is fed in said feed direction, comprising the following steps: a step of detecting a portion of said medium that is positioned on an upstream side in said feed direction; and a step of making a nozzle located most upstream in said feed direction, and nozzles within a predetermined distance in said feed direction from the most upstream nozzle, not eject liquid based on a result of the detection; a step of moving a carriage in a main-scanning direction, wherein the most upstream nozzle and nozzles within said predetermined distance in said feed direction from a most upstream nozzle are kept from ejecting liquid and other nozzles eject liquid; a step of feeding said medium in said feed direction; a step of increasing said predetermined distance; and a step of moving said carriage in said main-scanning direction, wherein the most upstream nozzle and nozzles within the increased predetermined distance in said feed direction from said most upstream nozzle are kept from ejecting liquid and other nozzles eject liquid.