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 Desktop Packages, which is subscribed to hplip in Ubuntu. https://bugs.launchpad.net/bugs/192176 Title: Scanner output always JPEG compressed Status in HP Linux Imaging and Printing: Invalid Status in Simple Scan: Fix Released Status in “hplip” package in Ubuntu: Invalid Status in “simple-scan” package in Ubuntu: Fix Released Status in “hplip” package in Debian: Confirmed Bug description: Binary package hint: hplip The hpaio backend compresses the scanned image with JPEG before it is received by xsane. This makes it impossible to scan anything losslessly. Editing ~/.sane/xsane/($scanner).drc to say "compression" "none" Fixes this temporarily. To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/192176/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
