Xerox 96MX - Manual (Page 36)

OVERVIEW
1-10 XEROX DOCUPRINT 96/DOCUPRINT 96MX LPS PDL REFERENCE
Output processing
The steps required during Output processing are summarized below.
Step 1. The OCS task sends a message to output indicating that output
processing can start. This message includes the address in the
PRFIL1.SYS file of the information for the first page to be printed.
Step 2. The output task reads the starting page log buffer and builds an entry
in its own page tracking buffer. The page tracking buffer contains the
information output processing uses for page creation (text, data,
form, and font addresses, counts, and flags for options such as
simplex or duplex).
Step 3. The output task copies portions of the font, graphic, and logo files
from disk to the Advanced Image Subsystem (AIS). The AIS is
instructed to create the page image from these specifications and
store it in its private page buffer.
Step 4. The output task instructs the AIS to send the page image to the
printer. As the AIS sends the image, the output task uses the page
tracking buffer to monitor and record delivery of the printed page to
the bin.
Step 5. The output task identifies each page successfully printed and
delivered. The input task can then reuse that page space in the page
buffer to process an incoming page.
The output task also identifies each page unsuccessfully printed or
delivered. The output task uses the page buffer and log information
stored in the PRFIL1.SYS file to repeat the steps which recreate the
page image, send it to the printer, and monitor its delivery to the bin.
Then the output task releases the space for that page in the
PRFIL1.SYS file.
Step 6. When the output task has verified the successful printing and delivery
of all pages prepared for it by the input task, the output task signals
the input task that output processing is waiting for more formatted
page and page log buffers.
Step 7. When the input task reaches the end of file marker on the input data,
the input task messages the OCS task that input processing of the
print job is complete.
Step 8. The OCS task displays the JOB XXXX HAS COMPLETED INPUT
PHASE. message to the operator.
Step 9. When the output task finishes printing, it messages the OCS task that
the job has completed printing.
Step 10. The OCS task displays the following message to the operator:
JOB XXX HAS COMPLETED PRINTING.