I've been under ubuntu for nearly 10 years now, there are some problems that have thick skin! One of them, the slow printing delay problem, I never could solve! Today I start printing 20 copies of a 1 page pdf document, after half an hour nothing happened! I search for solutions on the net since years, but found any. I'm sure that it is not brand or model related problem, since I tested many printers from different brands, it seems that the raw file generated for the printer is very big, takes long time to be generated and to be transmitted to the printer.
I wonder if we could find some workarounds in this post, in cmdline, or at least, identify what's wrong, at which process it stucks, I know almost nothing in cmdline printing, can you please give some cmd lines to test and debug printing process.
It seems that printing a single page one time give no delays, but if I try to print say, 20 copies of the same page, it seems that it's generating the whole 20 pages, thus giving a very long delay.
Edit 2: Here is my debug info: http://pastebin.com/yZFgP66v
Edit 3: Always after rebooting, the printing starts at boot process (I understand thus that it is a CPU issue!)