Ricoh FT 4015 Service Manual page 28

OPTICS
6) Reproduction Ratio Correction Factor
The exposure lamp voltage is increased depending on the selected
magnification ratio in order to compensate for the change in concentration of
light on the drum.
Magnification Ratio
50% to 61%
62% to 119%
120% to 139%
140% to 159%
160% to 179%
180% to 200%
1 step = 0.5 V (120 V machines) or 1.0 V (230 V machines)
Reproduction Ratio Correction Factor
+2 steps
+2 steps
+4 steps
+8 steps
+12 steps
2-14
0
20 December 1996