Open the flap at the top of the device to access the receipt compartment.
Insert the paper roll into the compartment, ensuring the end of roll is pointing away from you, as illustrated below:
While lightly holding the end of the paper roll, close the compartment, ensuring a small section of paper is sticking out of the slot.
To ensure receipts can be printed successfully, please ensure the paper roll is oriented as shown below (with the paper feeding from the bottom):