| 摘要 |
<p>PURPOSE:To record a character of a size easily read on a blackboard sheet by enlarging the character, a graphic or the like on a desired position on an original to a desired magnification in an original reading part, thereafter controlling so as to transfer on the blackboard sheet. CONSTITUTION:When the original reading part 130 changes the magnification, a magnification adjusting screw 26 is rotated to change a lens system and a focal distance. Namely, even when the distance between the original 134 and a CCD image sensor 23 is fixed, if the focal distance is short, the magnification is reduced and on the other hand, if the focal distance is long, the magnification is enlarged. During the respective magnification, a focal point adjusting screw 25 is rotated and the distance between the lens and the CCD image sensor 23 is adjusted to form the image on the CCD image sensor 23. In this manner, when the original reading part 130 reads the original 134 on an original base 20, the reading magnification can be changed and the position of the original 134 on the original base 20 can be changed and the optional area of the original 134 can be read to a memory 14 with an optional size.</p> |
