I assume you are concerned with the print resolution. FFCore does not have a selection for setting the print resolution on job destined for a printer. The print resolution (if it is changable) would be done at the DFE. Note: FFCore does not support the 4127 (not to say one could not print on the device using FFCore). Also, for most print systems, FFCore submits PDF for printing.
One could inadvertantly reduce the resolution of content within a PDF via the Optimize or Pre-flight (pre-flight profile) nodes.