INK JET RECORDING APPARATUS

摘要

PURPOSE:To prevent the formation of a deposit due to the drying of ink and to keep stable image quality over a long period of time, by adding a nozzle washing solution supply means to the air supply route of a head and washing the interior of the air chamber of the head at each time when recording is finished. CONSTITUTION:When recording is finished and an ink jet unit 1 stops in front of a washing housing 22, the pump provided to a nozzle washing solution supply means 4 is operated for a definite time and the washing solution 13 supplied to a washing solution sump is sent to an air distributor 5 by compressed air always supplied to an air supply means 3 during the operation of a printer. The washing solution 13 enters the air chamber 9 of a head 101 along with air through an air supply tube 8-d and is discharged in the washing housing 22 while washes an ink nozzle 10 and an air nozzle 11. At the same time, the drive mechanism of the washing unit is operated to press the washing housing 22 to the ink jet unit 1 and a water supply means is operated for a definite time to spray water shower to the ink jet unit from washing nozzles.