Inspective ejection method for fluid ejection apparatus and fluid ejection apparatus implementing the method

A fluid ejection apparatus including an ejection unit having a plurality of the nozzle orifices capable of allowing the fluid to be ejected therethrough to a target, the apparatus comprising:

• a memory which stores inspective ejection data including:
• unit ejection data which is configured to shift a timing of ejection from each of the nozzle orifices to be inspected in one inspection period, the unit ejection data being used for individually inspecting each nozzle orifice belonging to a group of continuous nozzle orifices of a predetermined number M which is less than total number Q of the nozzle orifices;
• and non-ejection data having a length of at least Q−M and being added continuously to at least one of a leading side and a trailing side in a unit ejection data reading direction;
• an ejection driving unit which drives the ejection unit so as to cause the fluid to be ejected from the nozzle orifices of the ejection unit according to the inspective ejection data;
• an address setting unit which selects one transfer start address from among a plurality of transfer start addresses which are set in the area of the inspective ejection data at an interval of M, the selection being made in a manner to avoid duplication of the transfer start address;
• and
• a transferring unit which transfers to the ejection driving unit the inspective ejection data read from the memory starting from the selected transfer start address,
• wherein the transferring unit repeats the selecting and the transferring a plurality of times of a natural number which is Q/M or greater while changing the transfer start address.