1.[Compatible with Printers] Compatible with Canon imageprograf IPF650 655 680 670 685 755 750 760 765 770 780 785 830 840 850 printers. 2.[Package Contents] Total 1 Pack of Compatible MC-10 Maintenance Cartridge Replacement. (NOT ORIGINAL). 3.[]SHUOLEO maintenance cartridge is equipped with advanced ink absorption technology, which effectively collects and contains excess ink during printer maintenance cycles. This innovative feature helps prevent ink spills, ensuring clean and efficient printer operation. Moreover, it effectively extends the printer's lifespan and reduces the frequency of ink cartridge replacements. 4.[] Please replace the maintenance cartridge when the printer's software indicates that it is approximately 80% full. The MC-10 Maintenance Cartridge is designed for easy and hassle- installation. To install it, simply remove the used ink maintenance box and insert a ink maintenance cartridge into the printer's card slot. Make sure the cartridge is aligned correctly and securely attached to the printer to ensure minimal downtime and uninterrupted printing.