jjs said:
Since I can't see the program code, I have to guess that the image size
will be larger than addressable memory (plus program size.)
Do you really need 4800spi/48-bit? You can't use it with any conventional
imaging software. You can't print it, either. I'd suggest you lower the
bit sample to something manageable. You will always have the transparency
in the future when/if digital catches up.
No, I don't need 4800 ppi, but I need at least 3200 ppi, and I want
48-bit. Of course for printing the bits come down, but not the
size. I've printed 4x5 at 4 x 5 FEET at 305 ppi on lightjet 500.
That works out to 4*12*305 x 5*12*305 = 14,640 x 18,300 pixels
= 804 mbytes. But processing at 16 bits/channel is a file
size of 1.6 gbytes.
Regarding the epson 4870, in tests I did yesterday, I was seeing
about 50 to 60 line pairs per mm, so either I have a good unit,
previous reports were with bad units, or newer units are better.
My testing showed only a little difference between 3200 and 4800 dpi,
but a big difference at 2400 dpi. So I need to get at least 3200 dpi
at 48-bits, which gives an 800 mbyte file.
I turned off ICE, but there was no difference in my error message.
Shortly I'll test with 2 gbytes ram.
Roger