Patent ID: 7278724
Filing Date: 2007-10-09
Classification: B41J,C09D,D06P

Abstract:
1. An inkjet recording apparatus which uses at least one first printing liquid including a polyvalent metal ion and at least one second printing liquid including an anionic compound which is capable of reacting with the metal ion to cause coagulation and thickening if mixed with the first printing liquid, the apparatus comprising: a recording head comprising a plurality of nozzles which fire at least one liquid; and a liquid treatment device having a liquid storage part that collects the printing liquids fired from the recording head during a non-printing period and stores the printing liquids, wherein a mixture including at least one of the first printing liquid(s) and at least one of the second printing liquid(s) fired from the recording head during the non-printing period is stored in the liquid storage part, and wherein the mixture stored in the liquid storage part includes a coagulation-thickening preventing agent which prevents the reaction of the metal ion with the anionic compound.