PURPOSE: To obtain a copying machine which can convert magnifications such as unmagnification, scale down and magnification of a lens accurately and can be reduced in size by disposing selfoc lenses selectively movably in an optical course between an original and a photoreceptor.
CONSTITUTION: The light irradiated onto the original 11 on an original placing platen 12 is irradiate to a photoreceptor 2 through a Selfoc lens 17a or 17b in the mid-way of an optical route 27, whereby the image of the original 11 is formed and an electrostatic latent image is formed on the photoreceptor 2. The Selfoc lens 17a is for unmagnification, and the 17b is for scale down or magnification. The lenses are supported respectively on both side parts of a supporting member 20 extending in parallel over roughly the entire length of a photosensitive drum 3 above the drum 3. Since the lenses are turned and are moved freely changeably to the route 27 by one-turn driving motion of a motor 24, the scale-down copying and macro-copying are performed freely changeably.
| JPS5564264 | ORIGINAL PLATEN DRIVING DEVICE |
| JP2002148730 | IMAGE READER |
| JP2006215374 | IMAGING OPTICAL SYSTEM AND IMAGE READING DEVICE USING THE SAME |
ISHIDA HIROSHI
TSUNODA YASUSHI
NANBA SATOSHI
TOMI TOSHIKAZU
