ARCON 4 PACK CE505X TONER CARTRIDGE / BLACK / PAGE YIELD: 6,500(AT 5% Coverage) Arcon Compatible Toner Cartridges offer great printing quality and reliable performance for professional printing quality.Help keep printing costs low while maintaining productivity.Also they are resilient and designed to last for an extended period, even after frequent use. cartridge. Cost less money and get high-quality toner ! Don't hesitate to make an order! When you have problems with our products: 1, Please contact our customer service immediately. Send mail through Amazon, or send mail to customer service team, or call us. 2, We will respond to you within 24 hours.3, All the problems will be solved with 100% satisfaction. Questions and solutions:1.Why do we believe that you will choose ARCON? First, ARCON's products are Built to ISO9001 and ISO14001 Factory Standard. AND We will try our best to provide you with high quality products and the lowest price AS WE ALWAYS DO. The most important is our engineers will test and upgrade the products regularly,so that we can ensure that our customers will received high quality toners. And We have great customer service teams and engineers who can solve any problems for you. 2. If received a defective toner? Please contact our customer service immediately, our engineer will solve the problems as soon as possible. If there are any product quality problems, all the responsibilities and costs will be borne by us (100%). 3. If you have any suggestion for our products or service? Please email our customer service team. Your suggestion is very important to our business's development. Any comments will be much appreciated. We sincerely hope our items and customer service can give you the BEST BUYING EXPERIENCE on Amazon.