HP Printer and Cups not working anymore

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https://bbs.archlinux.org – Hi Everyone,I have a huge problem and I have problems to solve it :S...I've been used to install cups and hplip for my printer, then start cups (rc.d start cups) and go to the cups page at localhost, add printer.... But today, when I tried to print a file he fails saying ""/usr/lib/cups/filter/pstoraster failed"... After a few try's to solve the problem I just deleted the printer from cups and tried to install it again... The problem is that the printer doesn't appear in the list again :S So I don't really know how to do...Informations :PC --> Arch Linux x (HowTos)