Patent ID: 6447095
Filing Date: 2002-09-10
Classification: B41J

Abstract:
An operation method for an ink jet recording apparatus, wherein the apparatus includes discharge orifices having waterproof ink orifices for discharging waterproof ink which becomes water insoluble after drying and non-waterproof ink orifices for discharging non-waterproof ink, a cap for covering said discharge orifices, and suction means for effecting suction through said discharge orifices when said cap covers said discharge orifices, said method comprising:a covering step for covering both said waterproof ink orifices and said non-waterproof ink orifices collectively by said cap; a suction step for effecting suction through both said waterproof ink orifices and said non-waterproof ink orifices by driving said suction means when said cap covers both said waterproof ink orifices and said non-waterproof ink orifices collectively; a discharge step, performed after said suction step, for discharging ink from both said waterproof ink orifices and said non-waterproof ink orifices into said cap so that waterproof ink and non-waterproof ink are mixed in said cap; an exhausting step, performed after said discharge step, for exhausting ink out of said cap by driving said suction means when an inside of said cap communicates with air.