The D3 command sp-kill returns the serial
(or parallel) port to a user process state. To allow UNIX to use the
printer attached to this port, the D3 process using it must be killed.
Procedure
- Log on to D3 and enter user-ID dm and master dictionary
dm.
- Type:
sp-kill d printer.number
kill p port.number
These commands kill
the UNIX process associated to the printer on port port.number.