Quality Control：STMC,ISO9001 and ISO 14001 certification. More than 16 years OEM service.

Warranty:18 months calculated from the date when we delivery you the goods.

Guarantee:1:1 Return back or refund if the quality problem is caused by our manufacturing. Process or unsuitable packing.

- Defective: All of our goods ,we guarantee that our defective rate of black is within 1%,for the common models,within 0.5%,and within 3% for the color toner cartridge.

- We have professional quality control and R&D department to strictly manufacture each product.

- Ensure each product is tested before down off production line.