Kodak i800 Series User Manual page 38

Patch Reading
Types of Patch Codes
A-61510 January 2005
Patch reading allows you to change image address (IA) information
for a document on the fly, without any host PC or Operator Control
Panel intervention. All documents with patch codes are imaged and
cannot be automatically deleted by the scanner.
A patch code can change the IA level of the document that the patch
code occurs on (or the following document in the case of a Transfer
patch). These changes then override the IA calculated using the Level
to Follow Level rules.
Type 3 Patch Code
The image header reflects when a Type 3 patch code is detected
on a document. A Type 3 patch code is considered to be a Level
3 document. The IA for that document is recalculated by
incrementing the Level 3 field and setting the Level 2 and Level 1
fields to 0 (if the Level 2 and 1 fields are defined as having a field
width greater than 0). In the image header, document level and
patch type will be returned as a 3.
Type 2 Patch Code
The image header reflects when a Type 2 patch code is detected
on a document. A Type 2 patch code is considered to be a Level
2 document. The IA for that document is recalculated by
incrementing the Level 2 field and setting the Level 1 field to 0 (if
the Level 1 field is defined as having a field width greater than 0).
In the image header for this document, document level and patch
type will be returned as a 2.
2-32