On Friday 21 January 2005 08:08, Luke Campagnola wrote: > On January 18 2005 00:29, you wrote: > > On Tuesday 18 January 2005 03:23, Luke Campagnola wrote: > > > I got a Canon LiDE 35 a while back without checking to see if it was > > > supported (I cleverly assumed that LiDE 30 support was good enough), and > > > rather than sending it back, I'm giving a go at writing the backend. I'm > > > most of the way finished sorting out the differences between the gl646 > > > and the gl841, but I'm worried about damaging the scanner. Does anybody > > > know what things I should look out for, and whether this scanner has any > > > built-in protection? > > > > Hi, > > > > what protection you're looking for? These devices are so cheap, that > > there's nothing inside which can protect them in any way. But in general, > > if you take some care nothing will happen. > > Mostly I'm worried about moving the scan head too far and applying too much > power to the lamps (there's a register that controls the lamp power by PWM). > > It seems like the Genesys chip will automatically stop the motor when the > home > sensor is triggered, but that would only work if there does indeed exist a > home sensor.
Yes, you're right there, but in general I suggest first to snoop the USB traffic on the windoze box, analyse it and figure out the basic chip settings for this scanner, then you should be save. It's some odd kinda work, but I'm pretty sure there's no way without it :( Gerhard
