On Sat 09 Jan 2021 at 13:22:30 +0000, Dr. Jennifer Nussbaum wrote: > > On Saturday, January 9, 2021, 08:07:37 AM EST, Brian > <a...@cityscape.co.uk> wrote: > > > On Sat 09 Jan 2021 at 12:55:07 +0000, Dr. Jennifer Nussbaum wrote: > > > > Can you scan by choosing airscan, eSCL (note the lower case e), from > > simple-scan's drop-down menu. > > This did work at first, and I was very excited! However, it worked on > a text scan; whenI tried an image scan, it hung for several minutes > with the error"Unable to find colord device airscan:e0:Canon LiDE 300 > (USB): property match 'Serial'='sane:airscan:e0:Canon LiDE 300 (USB)' > does not exist",and then after that I was unable to do another text > scan--with no error, it justhung.
This is now getting above my pay grade, Jennifer. Could be a simple-scan bug or one in the device's firmware or in sane-airscan. Try switching the Canon off and disconnecting from USB. Re-power and re-plug after about a minute. > > > > Would you also try > > > > > > > > xsane "airscan:e0:Canon LiDE 300 (USB)"> > > > > and > > > > > > > > xsane ? > > > I don't have xsane installed. Is that just for background info? I've > > > used it in the past, and always foundit far too complicated to bother > > > with. > > > > You can always remove it afterwards, but I wanted to know which of > > the options it offers work. A preview is enough to do. > xsane works perfectly, whether or specify airscan from the > commandline, orif I just run it bare and then select either the pixma > or the eSCL airscandevice from the select box. This, at least, gives you working scanning. -- Brian.