Konica Minolta has released dozens of firmware updates specifically addressing "sporadic 9903 errors." If your machine has not been updated in over two years, this is a likely culprit.
Try to copy (not print) a multi-page document. If copying works but printing fails, the issue is with the print data or network driver. If copying also fails, proceed to Step 2. konica minolta code 9903
: Specific complex files (like large Excel sheets with variable data) can sometimes trigger "99" series codes during processing. Konica Minolta has released dozens of firmware updates
Look for settings related to or Image Optimization . konica minolta code 9903
If the error occurs only when printing from specific programs (like MS Excel or CAD software), the issue is likely with the data being sent.