By default, POSitive will print a signature line for invoices tendered with a credit card or a debit card on a 40col receipt.

If you do not want the signature line on debit card transactions, the form (#3, 4, 5, 6, 7 or 8) will need to be cloned and an "Instruction" filter modified on the Large Text entry of the footer tab.

STEPS
1. Clone the form you want to use
2. Choose Footer tab
3. Scroll to bottom of the list
4. Find the "Large Text" entry and click Edit
5. Replace whatever is in the "Instructions:" field with this: ChargeCard 0  (original line is LEN(CLIP(CC1))>0)
6. Click OK