Afraid I don't know a lot about printer firmware, but there is this thread on the subject. It would have been nice if the user had told us if the proposed solution helped, but I have yet to find a confirmed fix.
PudgyOne seems to think that you need to reinstall the printer from scratch, as though the I/O addresses were changed by the update process.
Dimension 2400, 2.2 GHz, 640 MB, eVGA nVidia FX5200 128 MB
Inspiron 5160, 2.8 GHz, 512 MB, FX5200 Go 64 MB