This product is a cleaning solution that allows you to maintain your printer simply by setting it, just like an ink cartridge. Please use it when you have printing problems (blurring, clogging) or for maintaining print quality. [Product Contents] Cleaning Cartridge Set for Canon BCI-371/370+6MP, 6 Colors [Compatible Models] PIXUS MG6930 / MG7730 / MG7730F / TS8030 / TS9030 [How to Use the Cleaning Cartridge] Set the cleaning cartridge in the printer and repeat head cleaning about twice. Leave the printer on for about 2 hours, and then perform head cleaning about twice more. After that, set the ink cartridges in the printer and perform head cleaning, and check if the clogging and blurring have been resolved. Please refer to the instruction manual attached to the product for details. - Model: BCI-371/370 - Colors: 6 colors (PGBK, BK, C, M, Y, GY) - Compatible Models: PIXUS MG6930, TS8030, MG7730, MG7730F, TS9030 - Function: Printer cleaning cartridge Thank you for viewing. ②520-92-220