I try to activate IR scanning on my Epson 4870. I believe that the IR channel is captured in a second scan of the film whereby the scanning light and scanning head is somewhat differently positioned. I couldn't find the "how" in the public Epson manuals. The people from Epson developer were kind - but couldn't help me either.
I found out - by looking at the commands of a non-sane driver - that the difference between a regular transparency scan and an IR scan is the use use of an extra command: ESC-# (0x1b 0x23) followed by 32 bytes. Unfortunately, I can't figure our the structure of this command. Does anyone knows? Thanks in advance, st
