We have a Samba installed that uses CUPS. Whenever sombody sends a job to print, the printer (parallel port) prints it but it never flashes data led. We tried to send a big file (4mb) to print - it prints but still data led is not flashing. It was flashing before on our old server with Windows 98, our new server is Debian.
Does anybody has any idea of why this could happen?

Thank you