[ale] Printing problems

[hscast at charter.net (Scott Castaline)]

Sometime way back I had tried to upgrade hplip to version 1.7.4a and was 
unsuccessful so decided to revert back to the original version I had on 
my FC6 system. Since then I have had strange problems with printing that 
is inconsistent, depending upon what I'm printing and through which 
application. I want to try to rebuild by first removing than 
reinstalling the printer system. What all do I need to be concerned with 
aside from cups and hplip?

TIA