On Sun, Apr 4, 2010 at 12:45 PM, Michael Schmitt <mschmitt at unixkiste.org> wrote: > someone had the urge to give me a Canon CanoScan 8000F /../
Hello Michael, That sounds positive, welcome to the "Can Do" club :-) It is likely this scanner uses also chips that are common to others---and which are being worked on. As you've already taken it apart (good for you!) I think it would be helpful to take a UsbSnoop of some simple (small, low resolution) scans in Windows 2000 or XP (if you have access to one) from which the format of the commands used should give a good hint to the chipset. http://www.pcausa.com/Utilities/UsbSnoop/ If you need help with that, please ask. Snooping is always helpful, for later development when the developer needs more info and doesn't have such a scanner. However, in case the scanner is already recognized by the latest SANE code, please try downloading the current git snapshot of SANE CVS, and testing it with "sane-find-scanner -v -v" or "scanimage -L -v -v" (SANE CVS by default installs into /usr/local so should not interfere with you system SANE installation). > As said I did disassemble the device partly and can see some chips. The > three most prominent ones are: > > EM638165TS-7 > (which most likely is just DRAM) Indeed: 4Mega x 16 Synchronous DRAM (SDRAM) > st L6219DS > 699AX0339 > (most likely the IC for the stepper motor?) Yes. > EliteMT ? ? ? ? 100MHz > M118416256A ? ? -25J > FPC1NJ085 ? ? ? 0336 > (This one did puzzle me... according to google could be an IC or DRAM > too) No idea. > There is one bigger area (about ca. 4*4cm) completely covered with a > metal coat (like with TV-tuner-cards but a lot smaller) soldered on the > circuit board and I assume the really interesting chip is hidden under > there? I have to find my soldering iron, but I am willing to chop that > hood off too... I guess... If you feel confident you won't break the scanner... else a USB snoop would be easier and probably safer. Regards, Gernot Hassenpflug
