What are the operating instructions (in outer space) for a ZERO GRAVITY TOILET?

In the movie 2001: A Space Odyssey, there was humorous scene where Dr. Heywood R. Floyd was on a Pan Am Space Shuttle, and he was seen standing in front of the instructions for using such a device, intently reading them.

I own a DVD of that movie, but no amount of zooming makes that sign clear enough for me to read it. Does anyone know what those instructions might say? Or what the instuctions really are, for using such a device on the MIR Space station?

And to beat stratman37 to the PUNch, I’m sure that using one would be no MIR feat, but I’ll certainly be relieved to find out what they are, and I know for a fact that the astronauts and cosmonauts all use Ex-Lax, to keep their systems “GO.” And lastly, I hope I will get a response from him, without any Dullea. (My apologies for this self-defecating humor.)

This question was inspired by this article, and reminded me that I had always wanted to know how a space lavatory functioned, but again, my question mostly concerns what the instructions were, in the 1968 movie I mentioned.