I had this with a different CIS scanner. In that case the problem was that the USB socket (an unpowered hub) provided enough power to run the stepper motor but not the LEDs. Plugging direct into a PC USB socket fixed it.
On 6/14/2016, "m. allan noah" <kitno...@gmail.com> wrote: >CIS machines don't have separate bulbs, they have a series of tricolor >LEDs that are integrated into the optical module. If the LEDs are not >lighting, I'd guess you have some other problem. What version of >sane-backends are you using? > >allan > >On Tue, Jun 14, 2016 at 10:42 AM, George S. <facto...@comcast.net> wrote: >> Hello - Apparently I have the problem named in the subject. The scanner >> works, but I just get a black scan. Where can I get a bulb? >> >> Thanks. George >> >> -- >> sane-devel mailing list: sane-devel@lists.alioth.debian.org >> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel >> Unsubscribe: Send mail with subject "unsubscribe your_password" >> to sane-devel-requ...@lists.alioth.debian.org > > > >-- >"well, I stand up next to a mountain- and I chop it down with the edge >of my hand" > >-- >sane-devel mailing list: sane-devel@lists.alioth.debian.org >http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel >Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-requ...@lists.alioth.debian.org > > -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org