| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet recording apparatus capable of stably practicing charge suction capable of making exclusion and preventing entering of nozzle bubbles compatible without being influenced by size fluctuation of a mechanism and environmental temperature, and to provide a method for recovering a recording head. SOLUTION: The inkjet recording apparatus is characterized in that when the minimum negative pressure needed to eliminate the bubbles existing in the nozzle from a discharging opening of the nozzle is P1, and the minimum negative pressure capable of sucking new bubbles to the nozzle from an ink feeding side to the nozzle when applied on the discharging opening is P2, at least one of the negative pressures between the first negative pressure and the second negative pressure is made to be at least the negative pressure P1 and smaller than the negative pressure P2. COPYRIGHT: (C)2011,JPO&INPIT |
