1. Important Notice: Our W1390X compatible toner cartridges are not compatible with H P+ printers that have model numbers ending in "E". H P+ printer only works with original toner cartridge, it cannot work with compatible toner cartridge. 2. Important Note: You need to close HP authentic mode before installing chip compatible toner cartridge, the step is setup > Power Settings > Cartridge Supply > OFF. In order to avoid the firmware update to block the compatible toner cartridge from being used continuously in the future, please also close the printer update and firmware update in the setup. 5. Clear Printing Effect: Print vivid images that make every word and line clearly visible, creating a soothing image for you and your eyes. Easy to manage printing such as designs, vivid posters, bro.
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