If you perform an AFP to PCL conversion, you will see this dialog after you click Advanced Options button,
PCL Format option can be either Monochrome PCL XL or Color PCL XL.
PCL Resolution is to define the resolution of text and graphics in the output PCL file. The horizontal and vertical resolution, in most cases, are identical.
Enable anti-aliasing option is to enable smoothing for text and/or graphics. By default this option is disabled.
Alpha Bits is the bit value of the alpha channel, which is usually 1, 2, or 4. The default value is 4.
Rotate image option is to rotate AFP pages to align with the orientation of the AFP document, and this option can be Rotate All, Rotate Page By Page, or Rotate None. By default, it's Rotate All.