Ricoh FT8680 Service Manual page 54

OPTICS
5.6.3 For Reproduction Ratio
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When the reproduction ratio is changed, the vertical position of the lens is
changed. At the same time, the total focal length has to be changed to adjust
the image focusing. For this focal length change, the horizontal position of the
lens is also adjusted.
The figure shows the lens horizontal position for 50, 100 and 200%.
Lens Position
Vertical
2-30
31 July 1995
Horizontal
Original
Front Edge
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