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+TODO UMAX BACKEND FOR SANE
+==========================
+
+ * When depth>8 then it is necessary to create the gray gamma
+ table with the correct depth
+
+ * Astra 2200: enable option resolution bind for grayscale/lineart
+ it must be disabled and set "true" for color mode
+
+ * change set_window if (dev->do_color_ordering != 0) {..}
+ one of the settings makes an error for Astra 6X0S scanners
+
+ * include push-button function to SANE_START (?)
+
+ * add builtin halftone pattern selection
+
+ * add halftone pattern doenload, dimension selection
+
+
+ - I will NOT add support for parallel-port and USB scanners to this backend!
+ Don`t ask for it.
+