I think you would want to stick with lower level (stupid) machines that have chips from a third party which gives away documentation on their website. Something like rts* gt*, genesys backends should be useful. If you sensor sled is going to weigh more than the original, or if you use a different motor, you will probably want to use a scanner that gets its motor acceleration tables from the driver (genesys?)
allan On Mon, Sep 15, 2008 at 11:22 AM, Torsten Wagner <torsten.wagner at fh-aachen.de> wrote: > Dear Dev-Team, > > first of all I'm a complete newbie in terms of scanners resp. the development > of sane. I hope you can help me a bit to sort out some questions. > > Background: We are going to develop a new kind of scientific measurement > device which acts similar to a scanner. Our measurements are latterly > resolved e.g. we can create a pixel by pixel map whereas the measurement > signal might be represented by a colour. This is, so fare well known already > for similar devices already (Actually, it is not different to a normal > scanner). Our reading unit can read line by line and thus we are thinking to > use the mechanical set-up of a normal scanner to acquire a complete picture. > > Idea: For sure, it would be perfect, if we can address this type of new > scanner in the same way like a normal scanner. E.g. by TWAIN-Protocol or by > SANE. This guarantees to capture measurements many kind of different > software. > > Problem: I have totally no idea how the communication between a scanner and > the computer works. I read about intelligent scanners which just get commands > like "scan with 600dpi one A4 page" and about dumb scanners which requires > commands like "turn on stepper motor for next line, scan line, etc." > > Is there any information available which might help me to identify which basic > scanner set-up might be the best for our purpose. I guess the dumb version > gives us access to lower level functions which we might need ?Any kind of > this hacks known already ? > > Does somebody know a scanner brand or a specific model which is easy hackable > for our purpose. Is there one out with full open/known programming interface > or does this require always a reverse engineering of all the different > commands ? Is there a sane-dev favourite scanner due to the easiness of use > and addressing ? A USB-model might be preferable but a LPT-based model might > be easier to access ?! > > I appreciate any kind of information and help. > > > Best regards > > Totti > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-request at lists.alioth.debian.org > -- "The truth is an offense, but not a sin"
