Canon DR-3080C - Manual (Page 46)

42 Using the Scanner
Effective Area for Detecting Patch Code Patterns
Notice
● When you copy the originals, adjust the size and density settings to match
the original. Extremely dark or light copies may not scan correctly.
● When you copy the originals, adjust the original so that the patch code
pattern is in the effective area for detecting patch code patterns.
● Make sure that the originals are not stained or marked in any way. Take
special care to avoid staining or marking the effective area for detecting
patch code patterns. Also, take care to avoid bending or wrinkling Patch
Code Sheets. Damaged or marked Patch Code Sheets cannot be read
correctly.
● To avoid a reading error, make sure that the scanning density for Patch
Code Sheets is neither too light nor too dark.
(effective area for detecting patch
code patterns)
Unit: mm
5 5
5
94
Patch code pattern