How do I use magicfilter.

Several kind folks responded to my plea for help in solving the printing staircase effect when using lpr to print to an HP DeskJet used for Windows. OK, I have installed magicfilter-so how do I use it. I entered it as a command and the system doesn't recognize it. How does it magically insert the c

question on using lpr

I just installed Debian version of Linux on my PC. I created a sample C program using Vi Editor. When I entered the command "lpr proga.c" it looked like this: 1st line 2nd line 3rd line 4th line ..(you get the idea). I