【Massive Printing】:Up to 2,000 pages per CS331 Black Toner at 5% coverage in A4 printer paper
【Smart Chip】The toner cartridges for the CS331 CX331 models are equipped with intelligent chips. These chips can automatically recognize the printer and enable seamless printing, without causing any damage to the machine. Before use, it is recommended that you shake the toner cartridge horizontally 2 - 3 times. This action helps to evenly distribute the toner inside, ensuring that you can enjoy clearer and more natural printing results
【Worry-free after-sales】：accompanied by the whole process: If you encounter technical problems or have any questions about the product in the process of using the product, please do not hesitate to contact us. Our professional after-sales team is always on standby to provide you with all-round support. Regardless of the size of the problem, we will treat it with care and answer your questions at the first time to ensure that your problem is properly solved
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