NetWare 4.1/9000 Print Services

C-4
Optimizing Network Printing Performance
Parallel Versus Serial Ports
by 60 to yield seconds-per-job.
• Divide the total bytes (bytes-per-job) by seconds-per-job to yield the bytes-
per-second needed to keep up with the print engine.
For example, a six-page job would take a minimum of 60 seconds on a 6-
page-per-minute laser printer. If the job “printed” 12,000 bytes (a likely low
end for plain text), the target throughput is 0.2KB per second. The same job
on a 17-page-per-minute printer would yield a target throughput of 0.6KB
per second.
For another example, a one-page graphic of 1 million bytes would target the
6-page-per-minute printer at 100KB per second and would target the 17-
page-per-minute printer at 283KB per second.
This method of estimating data transmission is not useful for PostScript or other
page description language printing which requires print job formatting at the
printer.
If possible, use an interface that can provide print data transmission rates as
fast as the target throughput calculated above.