Appendix D: Placing Delays Between Print Jobs - Black Box LE3840A Manual

To solve this problem, you can set up the end-of-job message to send
one thousand null characters between print-job boundaries. These null
characters will finish the canceled raster graphics command so that the
next print job will print correctly. Insert the nulls in the end-of-job message
(in this case @NULLxx, where xx is the number of nulls times one thousand).
D.2 How to Place Delays
You can place delays in the start-of-job or end-of-job message using the
Ethernet Print Server utilities.
You can have a short delay or send nulls from the start-of-job or end-of-job
message by adding the @WAITXX or @NULLXX command to the messages.
xx is replaced by a two-digit number.
The @WAIT places delays in seconds between print jobs, while @NULL
sends 2-digit thousands of nulls. The xx is any two-digit number from 01 to 99
(1 through 9 must be preceded by 0). For @WAIT, the number stands for
seconds, while for @NULL, the value is multiplied by 1,000 for the number
of null characters to be sent.
D.3 Examples
For example, to cause a ten-second delay, add @WAIT10 as the last characters
for the end-of-job message for the Ethernet Print Server printer. You can
have a wait state of up to 99 seconds.
To send 1,000 nulls, add @NULL01 followed by the printer reset command
as the last characters for the end-of-job message for the Ethernet Print Server
printer. This will ensure that print jobs end cleanly, even when canceled.

APPENDIX D: Placing Delays Between Print Jobs

137