INK JET PRINTER FOR EJECTING PRELIMINARY EJECTING DATA WITHOUT FIRST STORING IN PRINT PATTERN STORAGE-

摘要

An ink jet printer comprising a print pattern storage device for storing the input print pattern data and sequentially outputting the stored data in conjunction with the relative movement of the print head, and a separate preliminary ejection data generator for causing ink droplets to be ejected from plural print elements of the print head simultaneously, the ink jet printer further comprises a selecting device for selecting the output from either the print pattern storage device or the preliminary ejection data generator, and ejecting ink droplets from the plural print elements according to the selected output.