Hi Tomas,
This seems to be a GDI+ calculating the alignment and string width issue. You can see the following KB article which has a workaround for this issue.
http://www.syncfusion.com/support/kb/grid/Default.aspx?ToDo=view&questId=24
And here is your modified sample.
Print.zip
Let us know if this helps.
Best Regards,
Leo.