To change the font used instead of just bolding or italicizing, you can enter the name of any Windows font after the FN in the check form editor.
Note that depending on your version, the Attention line requires special formatting to change the format style. 
  1. Access the check forms under Tools > System Utilities > Admin Utilities > Finance Utilities > A/P 1099 and Check Forms Maintenance
  2. Open the template you'd like to edit.
  3. Note that System Defined templates (designated with an @ sign) cannot be edited.
  4. You must first Copy the template and Save it as a new template. 
  5. This template is considered a user-defined template (and is designated with a + sign).
The following examples are for Bold font type. The syntax is the same for Underlined or Italic, the difference is U or I is used, respectively.
  • BWord or just B  TextPara1=We are pleased to make a contribution to your organization.|X.5|Y+.5|BWord -or just B- 
  • TextPara1=We are pleased to make a contribution to your organization.|X.5|Y+.5|BWord 
  • BStart  TextPara1=We are pleased to make a contribution to your organization.|X.5|Y+.5|BStart  - This command would start using bold font.
  • When you would want to stop using bold you would add BEnd to the last line you would want bold.