Hallo Michael,
Das is doch ein Angebot! Die Einstellungen stehen in /etc/sane.d/plustek.conf ich tippe hier auf
Du, in /etc/blbla stehen niemals USER-Daten!!! Habe unter ~/.sane/xsane/plustek:_dev_usbscanner.drc "XSANE_DEVICE_RC" "plustek:/dev/usbscanner" "xsane-version" "0.90" "mode" "Binary" "resolution" 200 "preview" 0 "tl-x" 0 "tl-y" 0 "br-x" 13762560 "br-y" 19462882 "brightness" 0 "xsane-main-window-x-position" 119 "xsane-main-window-y-position" 30 "xsane-main-window-width" 306 "xsane-main-window-height" 215 "xsane-standard-options-window-x-position" 1 "xsane-standard-options-window-y-position" 400 "xsane-advanced-options-window-x-position" 280 "xsane-advanced-options-window-y-position" 420 "xsane-histogram-window-x-position" 280 "xsane-histogram-window-y-position" 50 "xsane-gamma-window-x-position" 0 "xsane-gamma-window-y-position" 0 "xsane-preview-window-x-position" 430 "xsane-preview-window-y-position" 6 "xsane-preview-window-width" 435 "xsane-preview-window-height" 639 "xsane-gamma" 61512 "xsane-gamma-red" 65536 "xsane-gamma-green" 65536 "xsane-gamma-blue" 65536 "xsane-brightness" -199457 "xsane-brightness-red" 0 "xsane-brightness-green" 0 "xsane-brightness-blue" 0 "xsane-contrast" 712347 "xsane-contrast-red" 0 "xsane-contrast-green" 0 "xsane-contrast-blue" 0 "xsane-lineart-mode" 0 "xsane-threshold" 3276800 "xsane-threshold-min" 0 "xsane-threshold-max" 6553600 "xsane-threshold-multiplier" 65536 "xsane-threshold-offset" 0 "xsane-grayscale-scanmode" (nil) "xsane-adf-scansource" (nil) "xsane-enhancement-rgb-default" 1 "xsane-negative" 0 "xsane-show-preview" 0