Print head, especially for use in a serial printer

摘要: In an ink jet printer, a print head includes (N+1) nozzles arrayed in the paper feed direction. The distance between adjacent is K times as long dot line pitch P. N and are each integer larger than 2, mutually prime. quantity of droplet discharged from nozzle adjusted such to form on medium (111), dots having diameter at least 1.4 large (l). An interlaced combination several paths made by successive upper pitches used for major part (AB) (111). A minute-feed or lower one (l) (AH) (AF) end areas that which perfect printing cannot be obtained. With printing, entire surface medium.