My recently acquired Apple IIc read disks perfectly but when I try to format or duplicate disks (with ProDos v1.1.1 or 1.0.2), after the normal drive noise (like start-up one), I get this error message:

4356- A=0C X=60 Y=0C P=30 S=DA

and the red drive light remains lit.

I tried different double side double density disks (the same I use for Commodore 64 and Atari 800XL).