| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a luminous energy correction method for an exposure means capable of high accuracy luminous energy correction not producing luminous energy irregularity when loaded on an image forming device and an image forming device capable of providing a good quality image free from density irregularity. SOLUTION: A luminous energy measuring section 31 measuring luminous energy of each element for a pattern of lighting up only one of all elements of an LED array 28 and a pattern of lighting up all elements, a percent change computing section 34 computing a percent change in the luminous energy distribution of the LED array 28 on the basis of luminous energy data measured, a correction value determination section 37 determining a correction value for each element of the LED array 28 on the basis of measured luminous energy data and the percent change in the luminous energy distribution computed are provider in an LED control section 25 to correct luminous energy of the LED array 28. In the correction value determination section 37, a correction value is computed in consideration of a percent change computed in the change computation section 34 in addition to luminous energy data measured in the luminous energy measuring section 31.</p> |
