This article assumes you have modified the Check previously and need to adjust the micr symbols.
If your Check has been modified previously and you have a Custom Report Layout and need to change the Micr Font or change the symbol.
Go to Custom Report Layout.
Select your report. Click Actions. Export Layout.
Open the Rdl file that was exported ( it will open the Microsoft Report Builder). Locate the Micr line.
Then, select the box and right mouse click to get the dropdown of options and select Text Box Properties
Select Font and you can select a new font.
If you select General and click on the Fx under the Value area. It will show the expression and the formatting of the value.
The "C" are the Micr font letters for the Micr symbol
When the check prints the check number has the micr symbol C around it.