Printing a receipt

Question

I have windows applications to print receipt

User type into Textbox: 

(example, name of the customer in regional language, Malayalam)

I try to print using printdocument cobject

 

But some lettes are not coming correctly

I try the following code

 

Font fnt10m = new Font("kartika", 20, GraphicsUnit.Point); 

e.Graphics.DrawString(txtDevotee.Text, fnt10m, Brushes.Black, x, y);

 

in the last statement , following error occurs

 

"System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI+.\r\n at System.Drawing.Graphics.CheckErrorStatus(Int32 status)\r\n at System.Drawing.Graphics.DrawString(String s, Font font, Brush brush, RectangleF layoutRectangle, StringFormat format)\r\n at System.Drawing.Graphics.DrawString(String s, Font font, Brush brush, Single x, Single y)\r\n at Charity.VazhipaduMaster.winPrintBill_PrintPage(Object sender, PrintPageEventArgs e) in G:\\Charity 211118\\VazhipaduMaster.cs:line 1701"

help me