Oki MPS6150c User Manual page 212

Gray Tone
Converts the document to shades of gray.
C32_Mac_10.3_11d.jpg
Lightness Decrease (A) / Lightness Increase (B)
Darkens or lightens the document. The middle picture below is
with no filters applied.
C32_Mac_10.3_11e.jpg, C32_Mac_10.3_11a.jpg,
C32_Mac_10.3_11f.jpg
Reduce File Size
This filters the document to reduce its file size.
Sepia Tone
Converts the document to shades of brown.
C32_Mac_10.3_11g.jpg
MPS6150c User's Guide
212