| 摘要 |
PURPOSE:To prevent the generation of miscopying to be executed without correcting a lens position by generating an alarm when a movement regulating pin is not engaged with the recessed part of a lens position regulating plate at the time of operating a magnification converting lever. CONSTITUTION:At the time of operating an unshown magnification converting lever, a magnification switching arm 104 is driven in accordance with the extent of lever operation and a lens holding board 108 is slided on a sliding shaft 109 by the length corresponding to the extent of lever operation. A lens movement regulating pin 122 planted on the holding board 108 is engaged with the recessed part 127 of the lens position regulating plate 123 and a lens 30 is set up on a magnification position corresponding to the recessed part 127. Since the pin 122 is not engaged with the recessed part 127 when the lever is not set up on the correct position, a detecting switch 124 formed on the recessed part 127 is not driven and an alarm is generated. Thus, the generation of miscopying due to an incorrect lens position can be prevented. |
