OMR Specifications
The OMR mark must be a solid black line between 1pt and 2pts thick
(0.014 inch (0.35mm) to 0.027 inch (0.7mm]) and at least 0.393 inch
(10mm) wide.
Each mark position must be evenly spaced, at least 0.118 inch (3mm)
apart.
The area around the marks (the clear zone) should be kept clear from print
and any other marks that the scanner might read in error.
There should be no print on the opposing face of the sheet immediately
behind the clear zone.
Clear Zone
3mm minimum pitch
0.7mm thick
SV63138 Rev.A
1pt to 2pt
0.35mm to
2mm
minimum
(see following diagrams for
more detail of this area)
42mm maximum
(see following diagrams for
more detail of this area)
2mm minimum
10mm
minimum
OMR Scanning • 4
(Note: diagram is not to scale)
4-5