Hi, all. I recently bought a Canon LIDA 20, a USB scanner. It readly worked on my Linux 2.6 box, but its scan quality is really much worse than Windows 98 driver's scan output. It is a dual boot box.
I am scanning regular text documents, like the sample bellow. scanimage --resolution 300 --mode Binary -x 210mm -y 297mm The Windows output is almost perfect, like a photocopy. The sane's output seems to have much less resolution and misses some portions of text that is not black. I am using the same mode (lineart) and resolution (300dpi) on Linux / sane and Windows. I can send both outputs, if anyone request it (near 150k each, in PDF). I have no scanning experience, but I had tried almost all options of scanimage without significative improvement. Am I missing something, here? Follow some system information. scanimage --version scanimage (sane-backends) 1.0.14; backend version 1.0.14 scanimage -L device `plustek:libusb:001:004' is a Canon N670U/N676U/LiDE20 USB flatbed scanner sane-find-scanner found USB scanner (vendor=0x04a9 [Canon], product=0x220d [CanoScan], chip=LM9832/3) at libusb:001:004 -- Alvaro Figueiredo [email protected]
