| 摘要 |
<p>PURPOSE:To obtain a high-quality image easily with a simple configuration by correcting image information to be given to a drive means based on image correction information when an exposure means is driven based on the image information. CONSTITUTION:The luminescence value of an LED element is measured per element and a reciprocal of the measured value is stored. Then, image data and stored data are multiplied by a calculation part 33 and if each LED is driven, printing is provided with a constant luminescence value. In addition, if the sensitivity of a photosensitive element to LED is stored as image correc tion data, the same effect is obtained. Density data is stored in RAM to move a density lever, and a voltage level from an interlocked variable resistor is input to a computer for arithmetic and logic operation as a digital value together with image data to change image density. Furthermore, a voltage to be applied to an LED array is digitized to obtain image correction data and the luminescence value of LED is changed using the image correction data.</p> |
