Macro To Print Rows That Keep Increasing?

I'm searching for a macro that will allow me to print rows that are constantly changing in number. Attached is a sample of my workbook. The workbook has worksheets by month. There are data from five sales people on each sheet so each sales person has his own section. I have a print button within each section so he can print only his section of the page. No problem creating that macro.

However, at least twice a week the sales people are adding rows or moving a row of data from one month to another month, so the print area is constantly changing.