Enabling and disabling printers
select Control from the Settings menu,
then select Enable printing.
When you add a printer with the Printer Manager, the printer is enabled automatically. When you want to perform maintenance or halt printing for another reason, disable the printer. A disabled printer continues to accept print jobs (the jobs are added to the queue), but does not print them. If the printer was printing a job when it was disabled, the printer will start the print job from the beginning when it is enabled.
Enabling printing allows the scheduler, lpsched, to print files on the printer.