The follow procedure requires driver setup.
Ensure first that you have the original disk for your printer, if you do not have it, then download printer driver from Brother: DCP-330C: Downloads: Drivers.
Start unplugging all cables from printer and also unplug computer power cable.
Restart computer with printer unplugged.
On computer go to Control Panel installed printer and remove printer.
On printer, open all doors, look for paper stuck inside and for foreign objects.
Plug back printer to power but not to USB yet, if it flashes red already then the printer is faulty.
On computer, run the Printer software installer from disk or from download. Start driver setup with printer USB not connected.
When asked by software setup wizard connect the printer USB.
Try procedure above twice.
If still no luck the printer is defective, in that case call the phone number listed on the owner manual.