| 摘要 |
A variable magnification copying apparatus arranged to determine a scanning amount having a leading edge of an original document as a reference point, based on a copy paper size and a copying magnification as selected so as to control positions of a zoom lens assembly from the copying magnification, and characterized in that there are provided an original document trailing edge indicating plate disposed on a copy lamp unit for scanning the original document, and a device for displacing the original document trailing edge indicating plate together with the copy lamp unit based on the value calculated from the copy paper size and copying magnification, so as to set a terminal point of the displacement as a home position of the copy lamp unit.
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