Ricoh FT6645 Manual page 61

OPTICS
3.5.3 For Reproduction Ratio
Original Rear Edge
Original
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
3rd scanner is also adjusted. The maximum 3rd mirror shift distance is 50
mm (from the position at 100% to the position at 50, 200%).
The figure shows the lens horizontal position for 50, 100 and 200%.
200% 100% 50%
3rd Scanner Position
2-36
Copy Paper
100%
50%
200%
23 April 1993