ijpds formats.book - Kodak

Fixed Files
Chapter 1. Overview
Fixed Files
If font characters are the lowest elements on a page, the following rules
apply. For a left-rotated or inverted font, the page length is one more than
the Y position of the start of line. If a right-rotated font is being used, the
page length is the number of dot rows up to and including the last column
of the last character.
The page length is determined by the last dot row used by any record on
the page. Records that affect the page length are SFI, IML, SIL, UIL,
SPO, SPX, SRP, SPC, BOX, CBM, and IBM. For the SFI, IML, SIL, UIL,
and SPC records, the font orientation determines the effect as previously
described. If a BOX, CBM, or IBM image is the lowest element on a page,
the page length is the starting Y position plus the height.
Instead of using the default page length based on the image data on the
page as just described, you can set the page length using the SPL record.
The page length can be set to be longer or shorter than the space
occupied by the image data. If the length is set to be shorter than the
image length, part of the image will be clipped. If the page length is set to
be longer than the image length, white space is included up to the
specified length.
Note: The PLR won't set the page length to less than the default:
4096 for printhead resolution 120 or 240 dpi;
10240 for printhead resolution 300 or 600 dpi.
The fixed file area is a storage area in the data station where fixed
information may be kept, so that the same information does not need to
be read repeatedly from the input file.
Each RIP may have up to 256 fixed files, numbered from 0 to 255. Each
fixed file may contain any number of records. The maximum amount of
fixed file storage available is printer dependent.
The fixed files for each RIP are loaded at the beginning of the job, after
the fonts. The start of each fixed file is indicated by an LFF record. The
LFF record is not stored as part of the fixed file. The end of the last fixed
file for each RIP is indicated by an EFF record. All records between the
first LFF and the EFF for each RIP are stored in the fixed file area, except
for the LFF, EFF, and RIP records.
During generation of documents, the data station maintains a pointer to
the current position of each fixed file for each RIP. At the start of a
document, all the pointers are reset to the start of their respective fixed
files. During processing of a document, the pointers may be changed, and
records stored in the fixed files may be executed, by use of the SFF, GFF,
and RFF commands.
Refer to Chapter 5 for a list of the records allowed in the fixed files.
Reference Guide 1 - 15