Universal Laser Systems ULS-25PS, Руководство по эксплуатации

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The “INSERT END-OF-FILE” submenu
Then
Since the laser system is equipped with a unique way of storing multiple jobs in
memory, special provisions are made to distinguish one job from the next. When using
the ULS Printer Driver, an end-of-file(EOF) marker is automatically sent to the laser
system after each job is downloaded. An end-of-file marker is needed by the buffer in
order for it to recognize the end of one job, the beginning of the next job, and to
calculate the remaining free buffer space. Without an EOF, the buffer will not operate
properly.
There are two ways that a downloaded job will have a missing EOF. The first is if
printing through the ULS Printer Driver and printing is canceled, interrupted, or file size
exceeds the remaining free buffer space. When this occurs, chances are that the EOF
never made it to the buffer and the buffer will show that it is empty or that the job does
not exist. If this happens, part of the job might still remain in the buffer and that part
might become mixed up with other jobs. This is when having an “INSERT-END-OF-
FILE” option becomes important. In order to delete that partial file, the buffer must
either be cleared entirely or an EOF must be manually inserted into the buffer by simply
bringing the cursor down to the appropriate menu choice and pressing “SELECT”. This
provides an alternative to clearing out the entire buffer by inserting the EOF marker at
the end of the unwanted file fragment. Next, press the “NEXT JOB” button and this
fragment will then show up on the display as “NONAME” and will allow its solitary
deletion without having to delete the other jobs in the buffer.
Secondly, when using DOS based programs, a printer driver other than the ULS
Printer Driver must be used. That particular driver does not know to send down to the
laser system the required EOF marker at the end of file downloading. Again, the buffer
will not recognize that the job exists because it does not see the end of it. In this case,
an EOF must be manually entered into the buffer after each and every file download
from a DOS based program. Since the job name is not sent to the laser system by a
DOS based printer driver, every job will be called “NONAME”. To distinguish one
“NONAME” job from the next, the display will number the jobs in the order from which
they were downloaded.
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