ACER Peace be upon you. Honestly, the device is clean. I just bought it 5 months ago. I only used it for selling and printing invoices. Also, the invoice printer and the sticker printer, and also the device and the cash box, all of them, thank God, are very clean. I only used it for 5 months or less. I only used it for selling and printing invoices, I did not use it for anything else. Brand: Acer