Can't print to USB with CUPS 1.2 release

[Carlos Azevedo]

 > But whenever a print job is sent to the server CUPS reports 'Printer not connected; will retry in 30 seconds...' and nothing is printed.
> > I then compiled from source and reinstalled CUPS 1.1.23, reinstated the old cupsd.conf file, restarted CUPS and printing is now working again.
> > The printers were not touched during this procedure and were both on nor was the server rebooted of anything else besides CUPS being restarted.
> > So, any thoughts ?
>
> Check the permissions of /dev/usb/lp* - they should be owned by "lp"
> or allow write for the "lp" group.
>
At the time I changed the permissions to :

crw-rw-rw-  1 root root 180, 0 2006-04-24 21:04 /dev/usblp0
crw-rw-rw-  1 root root 180, 1 2006-04-26 17:54 /dev/usblp1

/dev/usb:
total 2
drwxr-xr-x  2 root root 432 2004-06-01 02:57 hid
lrwxrwxrwx  1 root root  11 2006-04-24 21:08 lp0 -> /dev/usblp0
lrwxrwxrwx  1 root root  11 2006-04-26 17:55 lp1 -> /dev/usblp1

I may not have restarted CUPS afterwards (not sure now) but the previous permissions for /dev/usblp* were cwr-rw-r-- and CUPS 1.1.23 worked (as is working now). Does CUPS 1.2 require diferent permissions from 1.1.23 ?