Ink jet recording apparatus

摘要

An ink jet recording apparatus in which a head supporting plate having a line head mounted thereon which comprises a plurality of short heads staggered is attached to a carriage whereby recording is performed by ink jet printing with the line head on a recording medium positioned beneath the carriage is rendered capable of using ordinary short heads. To this end, in an ink jet recording apparatus in which a head supporting plate 12 having a line head mounted thereon which comprises a plurality of short heads 11 staggered is attached to a carriage 9 whereby recording is performed by ink jet printing with the line head on a recording medium 2 positioned beneath the carriage, a portion of projection 25 is provided which is formed on a surface of attachment where the head supporting plate is attached to the carriage, the portion of projection entering into a hole 26 formed in the carriage; and a portion of recess is provided which is formed on an obverse side of the head supporting plate and at a position corresponding to that of the portion of projection and whose inner bottom surface becomes a head mounting surface 27 on which a said short head having a nozzle is to be mounted, the head mounting surface being formed with a nozzle accepting hole adapted to accept the nozzle of the short head for mounting the short head on the head mounting surface.