Please send the faulty printer back to the supplier for a full refund.

請把那台故障的印表機寄回給供應商，以取得全額退款。

The shipment was delayed because of a faulty sensor in the warehouse scanner.

由於倉庫掃描器的感應器故障，這批貨延誤出貨了。

Customers who received faulty headphones can request a free replacement through our website.

收到有瑕疵耳機的顧客，可以透過我們的網站申請免費更換。