i cleared the memory grand totals and PLU files , then i programed the sales tax rate at 08.75000 and pressed tax 1 shift. arter this setup i went back to the regular registar when i pressed the PLU keys it shows the sales price without the sales tax amount when i hit the subtotal key.

bash, January 2011

Make sure you set each PLU to link to TAX1 if you want automatic tax. The default is no tax linked to any PLUs.
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If anyone needs a Samsung / Sam4s ER-5200m or ER-5240m manual, try here:

http://the-checkout-tech.com/manuals/cashregisters/Samsung_ER-5200M_and_ER-5240M_operating_programming_manual.html

Registerman, January 2011