Patch Positioning; Paper Details - Kodak i5000 Series User Manual

Patch positioning

Paper details

6-12
Horizontal and vertical placement of the patch code is critical for reliable patch
reading. If the patch code is placed improperly on the document, the scanner
may fail to read the patch.
A Vertical patches should be placed such that there is at least 0.5 inches
(12.7 mm) of white space between the lead edge of the page (the edge
that goes into the scanner first) and the start of the printed bar patterns.
Horizontal patches should be placed such that there is at least 0.25
inches (6.35 mm) of white space between the lead edge of the page (the
edge that goes into the scanner first) and the start of the printed bar
patterns.
B There must be at least 0.25 inches (6 mm) of space between the patch
code and the edge of the document.
C The patch reading window ends 2.0 inches (50.8 mm) from the lead edge
of the document. Horizontal patches must not extend beyond the patch
window.
D For vertical patches at least 0.75 inches (19 mm) of the patch code must
appear within the patch reading area.
• Paper stock color — white paper is the most reliable choice for patch code
reading. If you want to make the patch pages more visible to operators or
people who prepare the documents for scanning, then you can use bright
colors for the paper stock. Light yellow paper or a light pastel color that
reflects at least 65% of the light source should work well. Use of dark color
paper stock for patch pages may lead to unreliable patch reading.
• Print — the patch bars should always be printed in black. The printed black
bars must reflect less than 20% of the light source. Caution should be used
when photocopying patches. Photocopiers tend to automatically scale the
document which can effect the size of black bars and white spaces, thus
altering the print specifications. A photocopier with the scale set to 100%
should be acceptable for the i5850 Scanner.
• Paper size — the length and width of the patch pages should at least
5.5 inches (139.7 mm).
• Paper weight — if you want to reuse the patch pages after sorting, then the
paper weight needs to be stiff enough to successfully fly into Stack #2. For
more information refer to the section entitled, "Recommended paper
specifications" earlier in this chapter.
A-61670 August 2014