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AssigneeBrother Kogyo Kabushiki Kaisha
InventorsMasatoshi Yoshiyama, Atsushi Murakami, Tetsuya Ouchi, Kazuhiro Hayamizu
Estimating the term…
In a calibration data input process, a carriage 5 is moved toward an ink sensor 19 to a prescribed position while the ink sensor 19 detecting levels of reflected light. Then the amount of reflected light is read for over a range wider than the width of the carriage 5 including a theoretical detecting position P2. An actual detecting position P1 is found based on the level of reflected light. The difference between the theoretical detecting position P2 and the actual detecting position P1 is calculated and is stored as the calibration value α in a first calibration data memory M1. Accordingly, the actual detecting position P1 is set as P2 ±α. The calibration value α is used in a calibration process to calibrate the detecting position, so that the level of reflected light can be detected with accuracy.
A cartridge for an image forming device that includes a carriage that mounts the cartridge thereon and moves along with the cartridge, a sensor that detects an amount of reflected light reflected from the cartridge, the sensor including a light emitting unit that irradiates a light onto the cartridge and a light receiving unit that receives the reflected light, a detection unit that detects an amount of an ink contained in the cartridge based on the amount of the reflected light detected by the sensor, and a reading unit that controls the carriage to move to a predetermined position where the light irradiated from the light emitting unit is irradiated onto the cartridge and reads levels of reflected light from a waveform for the amount of reflected light at a reading interval, based on which the detection unit detects the amount of the ink contained in the cartridge, the cartridge comprising:
Dependencies are inferred from the claim text.