Xerox 96MX - Manual (Page 35)

OVERVIEW
XEROX DOCUPRINT 96/DOCUPRINT 96MX LPS PDL REFERENCE 1-9
Job flow process
The job flow process consists of OCS processing, Input processing,
and Output processing.
OCS processing
The steps required during OCS processing are summarized below.
Step 1. The START command identifies the JDE/JDL created by the
programmer for the job. The OCS task reads the START command
and notifies the OSEXEC task to load output, input, DJD, and IPD
tasks.
Step 2. The OCS task then writes a job queue entry (JQE) for the job in the
job queue buffer. The JQE includes information from the start
command, for example, the JDE and JDL name and the number of
copies.
Input processing
The steps required during Input processing are summarized below.
Step 1. The RPT task first initializes the job queue buffer from the start JDE/
JDL information by recording job characteristics such as block
length, fonts needed, and required forms.
Step 2. The input task finds the disk addresses of the compiled JDE, form,
font, and logo files to be used in printing the variable data.
Step 3. If the print job is in Interpress format, the IPD converts the data to
ASCII format for the input task.
Step 4. The input task reads the variable data.
Step 5. The input task formats the variable data and writes it to the data
buffer in the print file PRFIL1.SYS. For each page in the data buffer,
the input task creates a page log entry in the page log buffer and
writes the buffer to the PRFIL1.SYS file.
Step 6. When the input task processes all the data, or reaches page
threshold (uses a certain portion of the area reserved for the
PRFIL1.SYS file), it notifies the OCS task that the output task can
begin.