Many times and when I am preparing my drawing in autocad , sentences have been shown in my print paper by it's four sides?

save drawing with DXF format and try print it 

DXF......Agree with Engineer Ahmed

Dear Yaqoub,

Save as your file as .dxf type. 

restart your file 

save as .dwg type. 

print 

It must be because you are using Autodesk educational version or You are using some part of your drawing which was originally created with Autodesk educational product(s).

You can remove it by using command DXFOUT (save for example on PC)

Open a new drawing,--> Type DXFIN to import.

it will be okay

Thank You For Invitation but I don't  Know

When u plot ur drawing there will be an option of signature on off. there u can change what u want. i Dnt know much about that because i never had such problem while plotting

I think you have to set up your printing page

1.Open the affected drawing 2.Type "dxfout" in the command prompt 3.Save the dxf in the location you can easily access 4.Now, type "dxfin" in the command prompt 5.Browse the file you save in step 3 6.Save the file as dwg The Produced by an Autodesk Educational Product should be removed upon completion of the steps above. If the educational product plot stamp still appears, check the xref file and apply the steps I’ve mentioned above.