| 摘要 |
PROBLEM TO BE SOLVED: To provide a maintenance method of a recording head wherein defective nozzles can be detected without impeding the printing work, and the productivity of printing images of a high quality can be enhanced, and to provide an inkjet printer. SOLUTION: The inkjet printer forms an image to a recording medium by delivering ink droplets d from nozzles 1a and 1d on the basis of image data in a process of scanning the recording heads 1A and 1D with a plurality of the arranged nozzles 1a and 1d back and forth along a direction orthogonal to a conveying direction of the recording medium. A detection light L which detects the presence or absence of passing of the ink droplet d is formed at the lateral side of the recording medium of the inkjet printer, along an arrangement direction of the nozzles 1a and 1d of the recording heads 1A and 1D to intersect a trajectory of the ink droplets d delivered from the nozzles 1a and 1d. In a process where nozzle arrays of the recording heads 1A and 1D pass the detection light L during continuous printing to the recording medium by scanning the recording heads 1A and 1D, the ink droplets d are sequentially delivered from the nozzles 1a and 1d of not fewer than one nozzle and fewer than all nozzles of the recording heads 1A and 1D. All nozzles are detected by a plurality of the number of scanning times. COPYRIGHT: (C)2007,JPO&INPIT |
