【Colors】 Blue, Black, Pink, Yellow 【Compatible Models】MF644Cdw MF642Cdw LBP622C LBP621C * Free shipping ✨ * Instant purchase welcome, silent purchase at midnight OK ◎ * Shipping is not available on Saturdays, Sundays, and holidays. * Anonymous shipping is not available. * First come, first served for single items * Bulk purchases welcome, feel free to comment * Opened for inspection & photography. ・Please understand and purchase with home storage and simple packaging for shipping (⁎ᵕᴗᵕ⁎) ・Please check the actual photos for the condition of the product ♪ #CielProducts Click here for a list ✨☜ 【Number of printed pages】 Black: Approximately 3,200 pages (per cartridge), Color: Approximately 2,500 pages (per cartridge) * The number of printable pages is a reference value when continuously printing on A4 paper with an image area ratio of 5%. The actual number of printed pages varies depending on the print content (documents/photos), paper size, paper type, and usage environment. It prints more pages than genuine cartridges and has high cost performance in terms of price, but the printing effect is not inferior. 【Applicable in many places】 Can be used in printers in various places such as homes, companies, and schools, and is suitable for daily printing. 【How to use】 1. Remove the used toner cartridge and drum unit set from the printer. 2. Remove the used toner cartridge from the drum unit. 3. Open the new toner cartridge. 4. Hold the toner cartridge and shake it from left to right 3-5 times. 5. Remove the orange protective cover. 6. Firmly push the toner cartridge into the drum unit until it is fixed in place. 7. Slowly slide the green tab left and right several times to clean the corona wire inside the drum unit. 8. Reinstall the toner cartridge and drum unit set in the printer. (29-1) 895