print are not same when printing with "HP Leserjet 1015"?

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C#

WinForms

printing

I created a application to print the invoice and challan. so generally invoice paper size is "A4" and Challan paper size is "custom".
So, When I set the paper size "A4", its print fine... but when i want to print custom paper size then it print different, from others printer and it print the multiple pages.

My code is :-

DialogResult dr = MessageBox.Show("Do You Want to Print?", "Print", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
   if (dr == DialogResult.Yes)
   {
       printDocument1.DefaultPageSettings.PaperSize = new System.Drawing.Printing.PaperSize("Custom", 670, 846);
       printDocument1.PrinterSettings.DefaultPageSettings.PaperSize = new System.Drawing.Printing.PaperSize("Custom", 670, 846);                    
       printDocument1.Print();                        
   }

It happens on "HP Leserjet 1015" printer Only...
Thanks in advanced..