----- Original Message ----
> From: Geke <[email protected]>
>
> > I'd like to rather see this as a "get to know something new every day". ;-)
> All right then!
>
> > When you print something, the system reads the file and sends the DATA to
> > the printer... regardless of the original file format it was saved in.
> > (at least, that's what I understood)
> You're right. I was still thinking in terms of Postscript printers,
> but these days most printers just get a bitmap formatted properly for
> them by the printer driver. That leaves me wondering what a printer's
> CPU is doing these days.
> Anyway, the OP might look into a RAM upgrade for that printer. That
> would be kind of an answer to his question, after all.
>
> > Saving an uncompressed TIF or an higly compressed JPG takes the same time
>(on a
> > modern Mac), but with the JPG you get 1/10th of the size (or less).
> Yes, but I was talking of lossless compression, where tighter
> compression requires more passes through the file. Photoshop doesn't
> give a choice when saving TIFF files except for Layer Compression,
> where "ZIP" takes about twice the time. But it's true, that's only a
> few seconds difference on my 2x500 G4 (for a 2MB file).
>
I'm the OP, FYI here's a follow up.
The job took about 20 hrs to print the 3400+ files, approximately 200 files/hr
not counting downtime. No problem since I could do other work while the files
printed in background. They are legal files so I needed to check the numbered
pages and noticed 3 or 4 pages out of 100 were printed out of sequence; for
example 1,2,3,5,4,6,7 and so on.
The system:
DA 733 MHz with maxed RAM @ 1.5 GB
Canon IR C3220 color copier/printer with Fiery imagePASS C-1 RIP
The RIP to much to my surprise is only an Intel PIII 850 Mhz with either 128 MB
or 256 MB RAM.
So, here is my observations using Activity Monitor and a wall clock. When I
drop
200 TIFF files into the desktop printer. The files start to print in about a
minute. The DA CPU is pegged at nearly 100% for about 1/2 hour then drops top
about 4-6% unless I use the DA for other work. The printer continues to crank
out pages at about 4 ppm.
The files are approx 100 KB TIFF compressed. From PhotoShop, the resolution is
300 ppi and image size is 2535x3368 pixels (8.45 in. x 11.227 in.)
The RIP seems to be the bottleneck. In practical terms the old 733 MHz Mac can
process files twice as fast as the RIP. Good exercise, thanks for all who
replied. --glen
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