[sane-devel] fail: open driver for Epson Perfection V100

m. allan noah kitno455 at gmail.com
Wed Jun 9 15:03:54 UTC 2010

Don't be discouraged. Writing a scanner driver is very difficult work,
especially if you lack documentation. Writing the epjitsu backend was
so frustrating, I doubt I will work on such a stupid scanner again.
Perhaps A. Imass will have some interest is continuing your work :)


2010/6/8 Stéphane Blondon <stephane.blondon at gmail.com>:
> As discussed before on this mailing list, I tried to write an open
> driver in order to replace epkowa but I fail and I will live far from
> the scanner in few weeks so I can't continue.
> To sum up what is known today:
> - the protocol is more or less like the epjitsu.
> - however the command headers are not the same as the epjitsu ones.
> - command used to call to set up the resolution is "1e 8d".
> Value for 50dpi: "03"
> Value for 600dpi: "02"
> Value for 12800dpi: "00"
> - the preview scans at 50dpi
> - the firmware is included in the Esf66.bin file (in the MS Windows driver).
> - the 255 first bytes of Esf66.bin are not sended.
> - the end of the Esf66.bin is not sended too (they are only "ff" values).
> It's probably not useful but my logs and files are there:
> http://sblondon.free.fr/scanner_v100/
> I will unsubscribe to the mailing list in days/weeks.
> --
> Stéphane
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