| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric type print head having a structure of ink nozzle arrangement capable of preventing lowering of printing quality and complexion of a driving timing. SOLUTION: One row of 128 ink nozzles are arranged in a line on a nozzle face of a print bead to be in an order of yellow nozzles Y, magenta nozzles M, cyan nozzles C and black nozzles K. A gap Gap having a length corresponding to six nozzles is provided in each portion between the nozzles of respective colors. The ink nozzles are divided into three nozzle groups and the nozzles are driven at the different driving timings by each nozzle group. As the gap Gap is set in a length of six nozzles which is a double of three, printing with good printing quality can be performed without changing the driving timings of the nozzles. |
