Patent ID: 6347853
Filing Date: 2002-02-19
Classification: B41J

Abstract:
An ink jet recorder, comprising:an ink jet head for ejecting ink onto a recording medium; an ink cartridge for supplying ink to the ink jet head, provided on the ink jet so as to be detachable; a carriage that holds the ink jet head, capable of sweeping across the recording medium; a detector for detecting whether or not ink fluid level in the ink cartridge is at a prescribed level; a display for indicating ink cartridge replacement; and a controller for controlling the detector to perform a predetermined number of detection operations to determine a final detection result, considering a majority of detection results of the detection operations as the final detection result, and controlling the display to display an ink cartridge replacement message thereon when the final detection result indicates an ink fluid level lower than the prescribed level, wherein the predetermined number is at least two, and the means for controlling terminates the detection operations once the majority is obtained regardless of completion of the predetermined number of detection operations.