VL2000 ug finalcomp.book - Kodak

Placing the Page Correlation Marks
Placing the Page Correlation Marks
Page correlation allows for the printing and reading of a block of encoded
marks that is printed on each page. These encoded marks are added to
the data while it is being ripped. The block of marks identifies a location
on the web that should receive the print data from one printhead that
relates to the print data from another printhead for the opposite side of the
paper or for a page printed side-by-side on the web. Up to four locations
can be correlated, indicating four printed faces that will be in the same
printed product. These faces are the front left, front right, back right and
back left sides in a two-up duplex print job.
The block of encoded marks has six areas reserved for a printed mark or
a white space, representing a number from 0 to 31. An operator can
identify the position and size of the block with entries at the system
controller, as described in “Setting Up Page Correlation”. Figure 106
shows the resulting marks printed for the 26th page or document, with the
use of the given operator entries.
When “Generate numbers” is selected, a two-part number is printed after
the correlation mark. The first part is the copy number, and the second
part is the full document number. The two numbers are separated by a
colon.
Figure 106
Page correlation marks
Required 3.0 inches unprinted space before mark
Position 0.25; Mark position 0.25
Cue mark
1:445242
Height 0.25
Position 0.25; Mark position 8.46
Mark width 0.25
Numbers produced with “generate numbers”
1:445242
Direction of web
Operator’s Guide 263