I got home from the gym and thought to myself that I should remove and re-add my printer. Well, removing it was no problem but I found I had difficulties re-adding it. I go to menu->administration->printers->add.... but don't know what to do past that. I tried entering the ip address of the printer into the URI field and into Network printer->host field but that didn't work. What am I doing wrong? :-)~MIKE~(-: On Thu, Oct 23, 2014 at 12:15 AM, Michael Havens wrote: > I got home from work and figured out why gscan2pdf isn't working. The > printer isn't connecting to the system! I tried printing a test page and > the Printer State field runs between 'processing' and 'rendering completed' > but nothing prints. It is a wireless printer and I have no notes on setting > it up (why? I have NO idea) If you could please help and I will write the > notes down and then not bug you about it and possibly be able to help > others. > > :-)~MIKE~(-: > > On Wed, Oct 22, 2014 at 11:00 AM, Michael Havens wrote: > >> I got a problem: after I open gscan2pdf an info window appears saying: >> >> Save as DjVu requires djvulibre-bin >> unpaper missing >> OCR requires gocr, tesseract, ocropus, or cuneiform >> >> after I close that window the little progress bar then runs back and >> forth as it is "opening device". Then an info window appears saying, : >> >> "Error opening device: Invalid argument" >> >> It was working. It was doing this with gscan2pdf version 1.2.3 (the apt >> version) so I updated it to version 1.2.6 but it was still doing it. I >> googled 'gscan2pdf "Error opening device: Invalid argument"' but their were >> only 4 results. The only one of which might have helped said to: >> >> rm ~/user/.gscan2pdf >> rm: cannot remove ‘/home/bmike1/user/.gscan2pdf’: No such file or >> directory >> >> I then ran apt-get for the programs it said were missing and now only >> the "Error opening device: Invalid argument" info window appears. >> >> Any ideas as to how to resolve this? >> >> :-)~MIKE~(-: >> > >