Magnetic Stripe Card Processing This section describes magnetic stripe card processing. Some models are not equipped with a magnetic stripe card reader (MSR). Use magnetic stripe cards that conform to product specifications. Insert the card into the slot so its magnetic stripe is facing toward the product and downward, and then slide downward or upward in the slot. At this time, press down on the card to make sure it is sliding along the bottom of the card slot. The buzzer sounds once if reading is successful, and three times if it fails. 66