On 06.11.2007 20:07, Mauricio Villamil wrote: > Hello, > > reading the SANE Docs, I found that it is possible to set up the > Environmental variable for a larger buffer size: > > SANE_SG_BUFFERSIZE, I have my RICOH_IS420 scanner hooked uo to Fedora core 6 > and it is working well, I just want to set up the variable to a larger size > ,but I don't knoe how??, which files need editing ??
You can set environment variables from a shell, i.e., a "command line" window and start a Sane frontend from the _same_ shell, like so: export SANE_SG_BUFFERSIZE=131072 xsane But if the scanner works fine, there should not be any need to do this. This option is useful only in the case that a scanner stops the scan head very often during a scan. Increasing the buffer size and thus increasing the amount of data transferred for one read command can help to reduce the number of such scan head stops. But I assume that a document scanner like the IS420 does not show such scan head stops. Abel
