You might try an EJECT :

Set print to COM1
EJECT
@1,1 say 'Item name'
@2,1 say 'Qty'
set print to

Eject should set top of page.

>Dear All,
>In my Point of sales System, I connected the Pole display unit to COM1.
>To display the messages I am using the following command
>
>Set print to COM1
>@1,1 say 'Item name'
>@2,1 say 'Qty'
>set print to
>
>Things are working fine, but the problem is
>
>1.When its Execute fist time display comes in order which I specified i.e., Item name in first row, 'Qty' in the next row, Next time onwards sometimes 'Qty' comes in the first row and 'Item name' in the second row. What could be the reason? Pls help
>
>2. I wanted to know how to clear the display, like 'clear screen' command
>
>
>Hope someone will help me in this
>
>Thanks in advance
>
>Jijo David