Patent ID: 8915573
Filing Date: 2014-12-23
Classification: B41J

Abstract:
1. An inkjet printing device, comprising: a first ink cartridge for storing a first ink; a second ink cartridge for storing a second ink; a first ink pipe connected with said first ink cartridge, wherein said first ink is allowed to be transferred through said first ink pipe; a second ink pipe connected with said second ink cartridge, wherein said second ink is allowed to be transferred through said second ink pipe; a first print head connected with said first ink pipe, and comprising a first ink chamber, a first nozzle and a first vent; a second print head connected with said second ink pipe, and comprising a second ink chamber, a second nozzle and a second vent; an ink refill mechanism disposed under said first print head and said second print head, wherein when said ink refill mechanism is connected with said first vent and said second vent, said first ink within said first ink cartridge and said second ink within said second ink cartridge are allowed to be transferred to said first ink chamber and said second ink chamber through said first ink pipe and said second ink pipe, respectively, wherein said ink refill mechanism comprises: a pump module connected with said exhaust pipe for generating a suction force, wherein said air within said first ink chamber is sucked by said pump module in response to said suction force when said first transfer channel is in said open status, or said air within said second ink chamber is sucked by said pump module in response to said suction force when said second transfer channel is in said open status, wherein said pump module comprises: a nozzle cleaning mechanism, wherein said nozzle cleaning mechanism is located beside said ink refill mechanism and connected with said pump module, wherein when said nozzle cleaning mechanism is connected with said first nozzle, in response to said suction force generated by said pump module, a clogged condition of said first nozzle is eliminated by said nozzle cleaning mechanism, wherein said nozzle cleaning mechanism comprises: