| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of yielding appropriate toner density even at the low exposure value (low gradation value) part of a formed image by using a conversion rule where characteristic between exposure and output time is sufficiently considered. <P>SOLUTION: In the image forming apparatus, a light source which emits light in the midst of inputting a predetermined light emission command signal is used, and the conversion rule for converting an index value (exposure value, gradation value or the like) showing the exposure of every pixel into the output time of the light emission command signal is set to be non-linear so as to be approximate to the non-linear characteristic between the exposure by the light source and the output time, then the light emission command signal is outputted to the light source according to the converted output time. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
