Hi, I had configurate the file "gt68xx.conf"as: usb 0x07b3 0x045f override "plustek-opticslim-m12" firmware "/usr/share/sane/gt68xx/cism216.fw" vendor "Iris" model "Iris scan express 2" afe 0x20 0x02 0x22 0x03 0x1f 0x04 but when I scanning I have this message The scanner is busy. Why? thank you