The Raster Quality Factor and the Rasterized Quality Factor settings are found in the PDF.pltcfg, Printer.pltcfg and the Pscript.pltcfg print driver configuration files.
In the Hpglrtl.pltcfg printer driver configuration file, the Raster Quality Factor setting is called Raster DPI and the Rasterized Quality Factor is called Rasterized DPI.
The Raster Quality Factor is the ratio of printer driver resolution to raster resolution, as a percentage. That is, 100 means that raster data should print at the driver resolution. Setting it to 50 results in raster data printed at half the available resolution, which may be desirable if the print's file size is a bigger concern than output quality.
This setting is in the Raster Printing section in the .pltcfg file. This property applies to Raster Manager attachments in non-rasterized prints, such as JPEG printed to non-rasterized PDF.
The Rasterized Quality Factor is the ratio of printer driver resolution to raster resolution, as a percentage, when printing in rasterized mode. That is, 100 means that rasterized prints should be made at the driver resolution. Setting it to 50 results in rasterized prints made at half the available resolution, which may be desirable if print's file size is a bigger concern than output quality.
This setting is in the Advanced section of the .pltcfg file. This setting is applied to the plot output only if Rasterized is enabled in the Print dialog interface or Print Organizer interface.
Because prints containing fine line work could be badly decimated if not rasterized at device resolution, reducing the rasterized quality factor is not recommended.