plot on
Enable or disable the PLL tracking.
This command should not be used when actual plotting is taking place. This
command is very useful to determine if the PLL will lock to the spinning drum
while imaging. The advantage to using the command "plot on" is you don't have
to image (and waste) media to test the PLL tracking.
To test the PLL tracking, do the following:
With a plate on the drum, type the command "drum spin"
After the command "drum spin" command completes, type the command "plot on".
Monitor the pattern of the PLL lamps on the MPE. If tracking is normal,
the centre two lamps are lit most of the time, and as the drum rotation changes,
these lamps oscillate with the drum between the 10 lamps to show how well the
PLL is tracking. If all the lamps stop changing and only one is lit, that is an
indication that the PLL was lost.
To disable the PLL tracking, type the command "plot off".
All
plot (on|off)