Here is simple-scan.log and the resulting PNG in a ZIP file. Also, in the log file there is a line about jpeg quality. And there is no setting for compression quality in Preferences. The only quality setting is Resolution (dpi).
** Attachment added: "simple-scan.log+png.zip" https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/192176/+attachment/3669587/+files/simple-scan.log%2Bpng.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/192176 Title: Scanner output always JPEG compressed To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/192176/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs