LIQUID DROPLET DELIVERING APPARATUS, LIQUID DROPLET DELIVERING SYSTEM, METHOD OF DETECTING LIQUID DROPLET DELIVERING, AND PROGRAM FOR DETECTING LIQUID DROPLET DELIVERING

摘要

PROBLEM TO BE SOLVED: To carry out detection of the presence of liquid droplet delivering of all nozzles of a liquid droplet delivering part in a short time by a liquid droplet delivering apparatus such as an inkjet recorder.;SOLUTION: A light emitting element 102 and a light receiving element 103 are arranged opposite to each other near a nozzle formation face 101a of a head 101. A reflecting light 115 which passes areas A2 and A1 to be reflected by the nozzle formation face enters the light receiving element together with a direct light 113 which is a light from the light emitting element and passes the detection area A2. When the delivering is to be detected, every two nozzles are driven sequentially one by one within a predetermined period Tc at predetermined time intervals Ti for every period Tc, whereby the ink liquid droplets are delivered one by one. Ti is set so that a term is produced in which delivered two drops of the ink liquid droplets 109 and 110 are simultaneously present within the area A2. A detection signal according to a change of a quantity of receiving light of the light receiving element due to light blocking of ink liquid droplets which pass A1 and A2 is output. The presence of delivering of every two nozzles is judged for every period Tc on the basis of the detection signal.;COPYRIGHT: (C)2007,JPO&INPIT