Print problems FC7

[Richard England]

david walcroft wrote:
> Since updates yesterday including the latest kernel my printer is off 
> line,I have tried the following without success
>
> [david at reddwarf ~]$ sudo /usr/share/hplip/setup
>
> HP Linux Imaging and Printing System (ver. 1.7.4a)
> Printer/Fax Setup Utility ver. 4.5
>
> Copyright (c) 2001-7 Hewlett-Packard Development Company, LP
> This software comes with ABSOLUTELY NO WARRANTY.
> This is free software, and you are welcome to distribute it
> under certain conditions. See COPYING file for more details.
>
> error: hplip-gui not installed.  GUI not available. Exiting.
> error: PyQt init failed. Reverting to interactive mode.
> error: No devices found.
> error: Error occured during interactive mode. Exiting.
>
> [david at reddwarf ~]$ /usr/share/hplip/probe
>
> HP Linux Imaging and Printing System (ver. 1.7.4a)
> Printer Discovery Utility ver. 3.2
>
> Copyright (c) 2001-7 Hewlett-Packard Development Company, LP
> This software comes with ABSOLUTELY NO WARRANTY.
> This is free software, and you are welcome to distribute it
> under certain conditions. See COPYING file for more details.
>
> warning: No devices found on the 'usb' bus. If this isn't the result 
> you are expecting,
> warning: check to make sure your devices are properly connected and 
> powered on.
>
> Restarting "service hplip restart" worked but 'print screen' gives me 
> nothing.
>
> What do I need to do now please
>
> Thanks   david
>

What does the command:
    /sbin/lsusb
show you?

What kind of printer?   Have you been using CUPS?