Oki ES 1624n MFP - Manual (Page 229)

Windows: Postscript Emulation Driver • 229
3. On the Graphics tab, select the required printing resolution in the
Resolution drop-down list, then click OK :
• Fine = high resolution, slower speed: the default. Provides
optimum results when printing graphics.
• Normal = medium resolution, medium speed: choose this set-
ting for documents with lower resolution graphics, line art, or
text only.
• Fast = low resolution, fast speed: choose this one for quick
proofing of drafts.
4. Click OK to print the document.