[Printing-user-general] nothing come out in the paper

I just set up the printer on my Linux system today, I'm trying to print a test
page,I tried the "Test Page" from foomatic-gui,
http://localhost:631/printers-->Print Test page and also "lpr testfile" from my
local dir. There is page come out from printer but nothing on it, ie. it comes
out with a pure blank paper. Can anybody help me with it? Thanks in advance.