On Friday 08 May 2015 16:17:53 Ondrej Zary wrote: > On Thursday 07 May 2015 23:32:28 Ondrej Zary wrote: > > Hello, > > I just got Umax Astra 4450 (same as 4400 except with UTA?) for a while > > and tested it with SANE. Unfortunately, it does not work. The lamp turns > > on and the head moves a bit, then goes back (two times) and the scan ends > > with these errors: > > > > [rts8891] simple_scan: failed to wait for data > > [rts8891] gain_calibration: failed scan data > > [rts8891] sane_start: failed to do gain calibration! > > scanimage: sane_start: Error during device I/O > > I've modified sane_start() in rts8891.c to not fail if gain_calibration() > returns error. It now scans the complete area and the output resembles > what's in the scanner (black template for UTA use with green text) but it's > blurry, shifted horizontally (and the gain is wrong, of course): > http://www.rainbow-software.org/linux_files/umax_astra_4450/no_gain_calibra >tion.ppm.gz > http://www.rainbow-software.org/linux_files/umax_astra_4450/no_gain_calibra >tion.log > > Looks like there's a problem with the sensor type?
Created a simple parser for the usbsnoop dumps and uploaded it along with parsed files: http://www.rainbow-software.org/linux_files/umax_astra_4450/rts8891_usbsnoop_parse.php.txt http://www.rainbow-software.org/linux_files/umax_astra_4450/umax-plug.parsed.gz http://www.rainbow-software.org/linux_files/umax_astra_4450/umax-preview.parsed.gz http://www.rainbow-software.org/linux_files/umax_astra_4450/umax-scan-75dpi-flatbed.parsed.gz http://www.rainbow-software.org/linux_files/umax_astra_4450/umax-scan-75dpi-uta.parsed.gz http://www.rainbow-software.org/linux_files/umax_astra_4450/umax-vistascan-run.parsed.gz umax-vistascan-run seems to be a subset of umax-plug -- Ondrej Zary -- sane-devel mailing list: [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to [email protected]
