"they all do that" is specific to these HP all-in-ones. Other scanners fix this in hardware or in the driver software. Does their TWAIN driver do this on windows?
Not everyone uses xsane- what about scanimage or gscan2pdf. They would also have to implement this flipping code. Hence, this is a problem with the hplip sane backend, for which the source should be available. That is the place the fix should be made. allan On Fri, Jan 30, 2015 at 11:52 AM, ken <geb...@mousecar.com> wrote: > Thanks, Allan. I talked with HP tech support about this too and the answer > I got was, "they all do that" and, if you want that kind of scanning (where > all the pages come out right-side-up), you have to get a dedicated scanner > which costs twice as much (and doesn't have printing and faxing > capabilities). > > My current office space isn't large enough to accommodate a lot of such > dedicated devices and, for other reasons, a less expensive all-in-one (AIO) > printer like the one I bought makes sense. I mean, for $150 I get a nice > ADF/duplex printer, scanner, copier, and fax machine; that's a lot of > technology in a relatively small space and for a very good price. That they > provide drivers for Linux is also major. > > Yes, it would be much better if HP designed into this product the logic > which would do "convert -flip" in the hardware. It would be much faster if > done in the hardware and probably cost them just a couple bucks more per > machine. But that's the economic system we have and it's not likely to > change in the near future. I just thought that, if "they all do that > [backside upside-down thing]", there might be an option in xsane-- say, a > button in the GUI to click on-- to vertically flip the backside of each page > when scanning in duplex mode. Maybe the option would best reside in xsane's > configuration settings for the individual scanner. (?) > > Would this list be the place to make this feature request? > > > > On 01/30/2015 08:11 AM, m. allan noah wrote: >> >> I hate to sound like a broken record :) I don't think there is a >> setting to fix this in xsane, because this is a bug in the backend. >> IMHO, the individual backend is responsible for making the image make >> sense. >> >> In the short term, you should be able to use 'convert -rotate 180' to >> rotate those images. >> >> allan >> >> On Fri, Jan 30, 2015 at 5:38 AM, ken <geb...@mousecar.com> wrote: >>> >>> When scanning several pages using the ADF in duplex mode, the backside of >>> each page is rendered upside-down. Is there some setting in xsane to >>> flip >>> the backside of each page vertically so that it's right-side-up? >>> >>> Failing that, is there a utility to accomplish the same thing >>> programmatically after the fact? >>> >>> Thanks for all good tips. >>> >>> -- >>> 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
