It appears that t10.org no longer allows free access to draft documents. I am sure some other site will have a cached copy. What you are looking for is the SCSI-2 spec, it is not scanner specific, but contains scanner commands. Also, you might find some useful info if you google for "fujitsu scanner oem manual" they cover the commands pretty well, though fujitsu has some additional commands that cannon does not.
allan On Wed, Aug 22, 2012 at 12:48 PM, Philip Gwyn <philipgwyn at gmail.com> wrote: > BTW, I'm searching for "scsi scanner protocol" and variants and > finding nothing useful about the protocol. What is the protocol > definition called? -- "The truth is an offense, but not a sin"