While every MFP has scan now, that wasn't the case back when this machine came out, yours wasn't sold with the Scan kit, so you can't scan, unless you buy the kit, which would be hard to source (Xerox stopped selling this device December of 2011)
Mono Scan KIT is 497K05760
I know color scan was possible on the 5735A when it had a SN that began with XEF, but I can't find a kit to add to one that doesn't have that SN
Just because it feeds paper doesn't mean it scans, and nothing scans and prints at the same time.
What you are describing is making a copy, not doing a scan, a copy is making a copy of a physical thing and having it replicated to another physical thing, a scan gets replicated digitally.
Copy = paper in, paper out
Scan = Paper in, PDF/JPG file out
Joe let me explaint again please,,
when i put the paper on document feeder (uper side of the lid (pic 1)not on glass (pic 2), i hope you understand what i mean), document feeder print that page which i put on the feeder, is it scaning???