--- blacklist-110	2007-05-02 15:53:25.000000000 +0200
+++ blacklist-110	2009-09-16 14:15:40.546118988 +0200
@@ -14,6 +14,11 @@ 
 # plus an exceeded 30sec boot timeout
 blacklist eth1394
 
+# Starting from version 1.4, cups now uses libusb and printer USB devices
+# instead of the usblp generated /dev/usb/lpX ones. For this backend the
+# "usblp" kernel module must be unloaded.
+blacklist usblp
+
 # You probably want this to not get the console beep loud on every tab :)
 #blacklist pcspkr