[sane-devel] Mac OS X: scanimage: open of device pixma:049A172C_21B0DA failed: Invalid argument

[Peter Schoenrank]

I am a user, not a developer. I couldn't find a good place to get help  
with SANE. If posting here is inappropriate, please forgive me, and  
point me in the right direction.

I am using Mac OS X 10.5.6 on an Intel iMac. I have just purchased a  
Canon PIXMA MX850, which I would like to be able to access from the  
command line. It is currently connected to the Mac via USB.

I have installed the software that came from Canon, and I have  
installed gettext, libusb, and SANE backends as packaged for Mac OS X  
by Mattias Ellert <http://www.ellert.se/twain-sane/>. According to  
that web page, the SANE backends were from 1.1.0-cvs 2009-02-20.


$ sane-find-scanner

results in

found USB scanner (vendor=0x04a9 [Canon], product=0x172c [MX850  
series]) at libusb:007:002-04a9-172c-00-00


$ scanimage -L

results in

device `pixma:04A9172C_21B0DA' is a CANON Canon PIXMA MX850 multi- 
function peripheral


$ scanimage -d pixma:04A9172C_21B0DA -T

sometimes results in a hang, and sometimes results in

scanimage: open of device pixma:049A172C_21B0DA failed: Invalid argument


I did

$ export SANE_DEBUG_SANEI_USB=255
$ export SANE_DEBUG=255
$ export SANE_DEBUG_PIXMA=20
$ scanimage -d pixma:04A9172C_21B0DA -T 2> ~/Desktop/scan.log

if anyone is interested.

Any help would be appreciated. I am not a developer, but I have Xcode  
3.1 installed, and I am pretty good at following directions.


Peter
-----
Peter Schoenrank
mailto: peter at schoenrank.ca
phone: 250-655-6753