Hi Richard, as Henning already suggested, please use the latest version. There your problems are solved: - lamp switching is fixed - UMAX 3400 works correctly
1.0.8 has only a bad 3400 support based on lot of assuptions... Another thing: The buttons of these devices are in general not supported. On windoze machines the button-states are normally polled by the driver and accordin= g to the states, the software decides what to do - and currently we have no= =20 button support here - although often wished ;-) Cheers Gerhard On Sonntag, 9. M=E4rz 2003 16:33, Richard M. Teitel wrote: > Developers, > > First, let me apologize in advance for the length of this message. I a= m > trying to solve several problems, which I believe to be related. > > I am running Red Hat Linux 8.0 on a 700 MHZ Pentium III using a UMAX > Astra 3400 flatbed scanner connected to the USB port. Red Hat came wit= h > sane-backends-1.0.8, which includes the sane-plustek.5.gz package (I'm > not sure which release this is). According to the documentation I've > read, these are the most recent releases and should work with the UMAX > scanner. Indeed, the scanner is detected using modprobe (thanks to > Henning), and I am able to run the scanner from either the XSANE > front-end (version 0.84) or GIMP, using the Plustek backend. I have > successfully copied and faxed B&W images. But all is not well :-( > > First, the Preview function does not work. When I run Preview, the > scanner makes an odd "clicking" noise as it scans and does not produce > an image. I am able to use the Preview function to set the scan area, > but that's all. > > Second, the Lamp Off After Scan function does not work. I set it for > several different time intervals (from 5 to 30 seconds), but the lamp > never turned off. It does turn off when I close SANE, after I edited > the Plustek driver to do so. Also, the front panel "Power Saver" butto= n > does not turn off the lamp (according to the UMAX tech rep, the button > sends a command to the software to turn the lamp off). I suspect this > problem leads to other problems having to do with overheating of the CC= D > sensor, since the quality of the first image is better than succeeding > images. > > Third, the quality of color images scanned from photographs is terrible= =2E > I have attached a copy of a color image scanned from a photograph. The > brightness, contrast and color of the photo are good. The scanned > images appear to be overexposed and "bloom" badly. My initial thought > was that the color saturation was way too high. The problem gets worse > as the scanner heats up (since the lamp doesn't shut off), and I have > been unable to correct the brightness, contrast, or color settings > enough to make the images look good. I tried adjusting the brightness > and contrast of the scanner using the SANE backend, and the quality > improved some, but not much. I have not tried scanning from the comman= d > line. > > As a final note, I used to run this scanner under Win98SE using > Vistascan and Photodeluxe and everything worked well, so I know the > scanner works correctly. > > I would very much appreciate any help you can offer. I am not a > developer, but have enough computer experience to do some > trouble-shooting and file editing. > > Thanks, > Rich Teitel
