well, it appears that the backend does not set default values for the width and height (-x and -y)
so, in order to make a scan, you must specify them. scanimage -x 210 -y 297 > image.pnm allan On Thu, Dec 18, 2008 at 10:41 AM, D. Hugh Redelmeier <hugh at mimosa.com> wrote: > | From: m. allan noah <kitno455 at gmail.com> > > | On Wed, Dec 17, 2008 at 10:23 PM, D. Hugh Redelmeier <hugh at mimosa.com> > wrote: > > | > [umax1220u] sane_start > | > [umax1220u] UMAX_set_scan_parameters: > | > [umax1220u] color = 1 > | > [umax1220u] xo = 0, yo = 0 > | > [umax1220u] w = 0, h = 0 > | > [umax1220u] xres = 75, yres = 75 > | > [umax1220u] left = 0, top = 0 > | > [umax1220u] right = 0, bottom = 0 > | > scanimage: sane_start: Invalid argument > | > [umax1220u] sane_cancel: handle = 0x692080 > | > [umax1220u] sane_cancel: canceling is unsupported in this backend > | > [umax1220u] sane_close > | > [umax1220u] UMAX_close_device: > | > [umax1220u] sane_exit > | > > | > | yes- it appears odd that all of those values are 0. what is the output of > | > | scanimage --help > > Here it is. I removed the part that does not depend on the device. > Note that the USB numbering may be different since I've been moving > the device between machines. > > Options specific to device `umax1220u:libusb:003:002': > --resolution auto||75|150|300|600dpi [75] > Sets the resolution of the scanned image. > --gray[=(yes|no)] [no] > Do a grayscale rather than color scan > -l 0..228.6mm [0] > Top-left x position of scan area. > -t 0..298.027mm [0] > Top-left y position of scan area. > -x 0..228.6mm [0] > Width of scan-area. > -y 0..298.027mm [0] > Height of scan-area. > --lamp-off > Turn off scanner lamp > > Type ``scanimage --help -d DEVICE'' to get list of all options for DEVICE. > > List of available devices: > umax1220u:libusb:003:002 > > -- > 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"