DaVinci meats Mozart

While reading about computer easter eggs on Wikipedia I found this paragraph which I found rather amusing

"Whilst computer-related Easter eggs are often found in software, occasionally they can exist in hardware or firmware of certain devices. On some PCs, the BIOS ROM contains Easter eggs. Perhaps the most famous example of a hardware Easter egg is in the HP ScanJet 5P, where the device will play the Ode to Joy by varying the stepper motor speed if you power the device up with the scan button depressed."

If you own one of these printers, please let me know if it does actually do this.