Patent ID: 6953237

Claim:
Dot recording method for recording dots on a surface of a printing medium, using a dot recording device, the device comprising a dot recording head equipped with a plurality of nozzles for ejecting ink drops, and a platen disposed extending in a direction of a main scanning so as to face the nozzles over at least a portion of a main scanning path, for supporting a printing medium so that it faces the dot recording head, the platen further having a recessed portion disposed extending in the direction of the main scanning at a location facing at least some of the plurality of nozzles, comprising: performing an edge portion process in which to record dots on a main scan line at a leading edge or trailing edge of the printing medium, wherein ink drops are ejected from at least a portion of a recessed portion nozzle group comprising nozzles that are situated facing the recessed portion, while at least one of the leading edge and trailing edge is positioned over an opening of the recessed portion; and further, in the edge portion process, executing a plurality of times a first unit scan operation in which one or more main scannings are performed to record dots on a plurality of main scan lines that include two or more main scan lines adjacent to one another, and performing an edge portion process sub-scan by a first feed distance at the interval between first unit scan operations.