The 16-port RS-232 adapter does not support clear to send (CTS). A printer connected to this adapter will not finish printing a job if the printer is powered off while the job is printing. You must restart the job or delete it manually.
Printing generates processes. Printing a job might take up anywhere from one to five processes in most instances. As with any other activity, it is possible to exhaust the number of processes on the system. This can happen by submitting a single print job on a very actively used system, or by submitting large numbers of jobs on a system with little other activity.
Running out of processes can cause erratic behavior on your system. If you experience erratic behavior on your system, we recommend that you check your resources to determine if you are running out of processes.