Patent ID: 7131722
Filing Date: 2006-11-07
Classification: B41J,B41M

Abstract:
1. An ink jet printer for recording a desired image on a recording medium by ejecting ink which includes a cationic polymerization component and which is curable when irradiated with UV light to the recording medium, the printer comprising: a recording head for ejecting the ink to the recording medium; a UV light irradiation section for irradiating with UV light the ink placed on the recording medium; a humidity detecting section for detecting humidity around the ink placed on the recording medium; and a controller for controlling irradiation of the UV light to be irradiated from the UV irradiation section on the basis of detected humidity detected by the humidity detecting section, wherein the controller has a conversion table showing a relationship between the detected humidity detected by the humidity detecting section around the ink placed on the recording medium, and a desired UV irradiation and a desired irradiation time corresponding to the detected humidity, wherein the controller comprises a central processing unit, and performs processing for calculating the desired UV irradiation of the UV light irradiation section and the desired irradiation time corresponding to the detected humidity by using the conversion table with the central processing unit, the controller determining whether the calculated desired UV irradiation is higher than a maximum limited UV irradiation of the UV light irradiation section by performing the processing for calculating the desired UV irradiation and the desired irradiation time corresponding to the detected humidity around the ink placed on the recording medium by using the conversion table, and wherein the central processing unit of the controller informs of abnormality of at least one of humidity environment condition and a UV light irradiation condition when determining that the desired UV irradiation calculated based on the detected humidity is not lower than the maximum limited UV irradiation.