Hi Jean-Marc, Am 23.02.20 um 21:45 schrieb Jean-Marc Spaggiari: > Hi Rolf, > > Thanks for the guidance. Build time is not an issue. So I built with all > the backends. I applied your patch, but just to be 100% sure, it removes > 1200 and replaces it by 600? > > I don't have any preference for any tool. xsane vs scanimage vs any > other. I just need one that works ;) I used scanimage because it was in > the frontend folder I just built and I was able to validate the version. > > The following command worked very well: > scanimage --resolution 300 --format=jpeg > image.jpg > > However trying to scan with 1200 fails: > jmspaggiari@t460s:~/backends$ ./frontend/scanimage --resolution 1200 > --format=jpeg > image.jpg > scanimage: rounded value of resolution from 1200 to 600 > > And the output image is 600dpi.
Yes, this is correct. Pixma backend supports only symmetric scan resolutions, so the highest available is 600dpi for your scanner. > > When trying gscan2pdf, even if the printer is connected on the USB port, > it shows me 2 scans with IP address, so I'm not sure it's taking the one > on the USB port. Also, how can I make sure gscan2pdf is using the sane > version I just build and deployed and not the one in the system? :-/ Please have a look at INSTALL.linux, "2.3.1. SANE library". Maybe you're using SANE installed from your distro's repository. After this gscan2pdf should also see the usb scanner. > > Thanks, > > JMS You're welcome. Cheers, Rolf