Working apparatus and working method

A working apparatus comprising:

• n number (where n is a natural number equal to 2 or greater) of work heads performing a same work, wherein the n number of work heads includes a reference work head;
• a stage retaining a work object;
• a first-direction drive device moving the stage and the n number of work heads relative to each other in a first direction;
• a second-direction drive device moving the stage and the n number of work heads relative to each other in a second direction orthogonal to the first direction;
• a third-direction drive device moving the stage and the n number of work heads relative to each other in a third direction orthogonal to both the first direction and the second direction;
• a work amount measurement device measuring a work amount of each work head;
• and
• a control device configured to control operations of the n number of work heads and the first- to third-direction drive devices,
• wherein the first-direction drive device enables the n number of work heads to be independently moved in the first direction, and
• the second-direction drive device includes a second-direction main drive device moving the n number of work heads simultaneously in the second direction, and a second-direction auxiliary drive device moving the work heads among the n number of work heads independently in the second direction while the second-direction auxiliary drive device does not move the reference work head in the second direction.