ijpds formats.book - Kodak

Two Documents per Cue
Chapter 1. Overview
Example Record Uses
Two documents can be printed between cues by alternating SDC and
SOD records. Although the SDC record requires the printing system to
wait for a cue before starting the document, the SOD record does not.
Therefore, an SOD record starts another document immediately.
Figure 1.17 shows the records required to produce two documents per
cue. The first document starts at a cue because of the SDC record. The
second document is started by an SOD record that does not require a
cue. The second document, therefore, begins immediately after the space
inserted by the SPC record after line 3 of the first document.
The third document is defined by an SDC record and waits for the next
cue before starting.
Figure 1.17 Two documents per cue
Start of page and document
End of page and document
Start of next page and document
End of page and document
Start of next page and document
Multiple Pages per Document
Records in Job file
.
Start of Document and Cue (SDC)
Set Position (SPO)
Image a Line (IML)
Image a Line (IML)
Image a Line (IML)
Space (SPC)
Start of Document (SOD)
Set Position (SPO)
Image a Line (IML)
Image a Line (IML)
Image a Line (IML)
Start of Document and cue (SDC)
.
Assume that the maximum length of the page buffer in a printing system
is 4096 dots. If a document exceeds this length, multiple pages are
required. Figure 1.18 illustrates the multiple page situation.
Note: The page length limit for the CD3000 and CD100 data stations is 4096
dots. The page length limit for CD120 data stations is settable by PLR (in
version 1.16, and was larger than 4096 dots in prior versions, to support
300x600 resolution). The DP5120/DP5240 printer data stations have
larger limits; see the 5120/5240 documentation.
In Figure 1.18, there is one document between cues and that document is
4900 dots in length. Therefore, two page buffers are required to store the
document. The document must be divided into pages by a start of page
(SOP) record before it overflows the page length limit of 4096 dots.
Although the division of the document into pages can occur anywhere
before the 4096 dot limit is reached, it is recommended for system
efficiency that the pages be balanced in size as nearly as possible.
Reference Guide 1 - 17