Ricoh C211 - Focus Adjustment; Reduction Ratio Adjustment

1.6 FOCUS ADJUSTMENT
•
B
A
x 100
≥
20%
• Amplitude "B" (difference between white and black levels) must be a
maximum.
Position the resolution chart so that the 300 DPI section can be read. Adjust
the lens position until the above wave appears.
1.7 REDUCTION RATIO ADJUSTMENT
Position the resolution chart so that the 300 DPI section can be read. Adjust
the lens block position until the cross points are fewer than 8.
Cross point
SM 5-5 C224