On 12/16/2015 01:31:55 AM, Berend De Schouwer wrote: > On Tue, 2015-12-15 at 16:14 -0800, Geoffrey Leach wrote: > > On 12/14/2015 11:58:53 PM, Berend De Schouwer wrote: > > > On Mon, 2015-12-14 at 11:46 -0800, Geoffrey Leach wrote: > > > > On 12/13/2015 10:40:10 PM, Berend De Schouwer wrote: > > > > > > > > > > Will "echo -en 'hello world\n\f' > /dev/usb/lp0" print? This > > > > > should > > > > > print the text, with a form feed. I assume it will block > (wait > > > > > forever) > > > > > > > > Submitted by root, the command prints fine. dev/usb/lp0 is > > > > character > > > > special (180/0) > > > > > > > > > OK, so does Cups print to usb://, parallel:// or file:// ? What's > > > the > > > device URI? > > > > > > You can get the device URI using 'lpstat -t' or using > > > 'http://localhost > > > :631/' > > > > % lpstat -t > > scheduler is running > > system default destination: HP_LaserJet_1300 > > device for HP_LaserJet_1300: usb://HP/LaserJet%201300 > > You should note if Cups ever disables your printer automatically. In > that case you want to set the option ErrorPolicy to retry-job. It > means that if the printer times out (bad cable) cups will try again, > instead of just halting permanently. You should see 'enabled' or > 'disabled' somewhere in 'lpstat -t' > > If you have tried a different cable, you can try a different URI: > 'lpadmin -p HP_LaserJet_1300 -v parallel://dev/usb/lp0'. The point is > to just try a different protocol, and hopefully different error > tolerances. > > Don't use parallel: or file: if you have more than one USB printer. > The print jobs can end up on the wrong printer.
I changed the error policy in CUPS and the test page printed, so that's progress. As I don't have the option of replacing the USB cable, I'm thinking of a hub. TBD there. Thanks. -- users mailing list [email protected] To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
