Patent ID: 6286926
Filing Date: 2001-09-11
Classification: B41J,G06K

Abstract:
An ink jet recording apparatus for performing recording using a plurality of recording heads for ejecting a plurality of respectively different inks onto a recording medium, comprising;detection means for detecting a temperature information of each of said recording headswherein the temperature of each of said recording heads is controlled based on temperature information detected by said detection means so as not to fall outside a particular predetermined temperature range set for each of said plurality of recording heads, the predetermined temperature ranges set for at least two of said recording heads being set respectively and individually, and which said predetermined temperature ranges are different from each other, the temperature of each of said recording heads is controlled by starting a heating operation of any recording head whose temperature falls below its particular predetermined temperature range and by starting a cooling operation of said apparatus when the temperature of any recording head exceeds its said predetermined temperature range,said recording heads including a black ink recording head and at least one monochrome ink recording head other than black, and a lower limit temperature being set for said black ink recording head that is higher than a lower limit temperature set for said monochrome ink recording head, such that more ink is ejected from said black ink recording head than from said monochrome ink recording head.