| 摘要 |
PROBLEM TO BE SOLVED: To prevent defective ejection of a liquid from a nozzle. SOLUTION: A controller 50 includes a parameter determining part 51 a printing control unit 52. The parameter determining part 51 accumulates values weighted according to the kind of an ink cartridge every time the ink cartridge is attached to a cartridge attachment part 5, and determines the accumulated value as a value of the accumulating using number parameter. The printing control unit 52 controls the action of the carriage 2 and inkjet head 4 when printing is performed, reducing a driving frequency of the inkjet head 4 as the value of the accumulating using the number parameter determined at the parameter determining part 51 becomes larger. At this time, a reducing amount of the driving frequency is increased as the temperature detected by a temperature detector 7 is lower. The printing control unit 52 reduces a moving speed of the carriage 2 matching with the reduction of the driving frequency of the inkjet head 4. COPYRIGHT: (C)2011,JPO&INPIT |
