Solution
Adjust the levels of yellow, magenta, cyan, or black.
<Copy>
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<Other Settings>
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<Color Balance>
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Select the color, and adjust the color level
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<Apply>
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Example: If you want to make a copy with colors that more closely match the original
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Example: If you want to make a copy with brighter colors than the original
NOTE
- If you select <Fine Adjust>, you can adjust the levels of the three density areas for each color.