| 摘要 |
PURPOSE:To obtain a recording picture excellent in color reproduction, by reading a recorded picture of recording paper and controlling the number of ink jets of each color delivered from each ink jet nozzle. CONSTITUTION:In photosensors 110-112, amount of light is changed with the amount of reflection of each color component of R, G, B on a color original 2, it is applied to a color correction circuit 125 and a color ink signal is outputted with a specified operation. The signal is given to an ink jet nozzle via drive circuits 126- 128 to form recorded picture on the recording paper with color ink. The picture is detected as an optical current according to the amount or reflected light with photosensors 101-103 and inputted to one terminal of comparison circuits 107-109. The output of the sensors 110-112 are respectively delayed 116-118 and inputted to other terminals of circuits 107-109. The output of the circuits 107-109 controls the number of ink jets of each color through the adjustment of the resistor for FETs 122-124. |
