? What: For Konica Minolta TN-626 Toner Cartridge? Package? 1 Pack For Konica Minolta TN-626 Toner Cartridge replacement ? Compatible Printer Models?For Konica Minolta bizhub? C450i / C550i / C650i Series Printers? Why choose us?Made of high-quality material, durable, firm and stable for us to use. ?Our toner cartridge uses the ISO 9001 and ISO 14001 standards. It has no harm to the printer, and has obtained qualifications for advanced performance in rigorous testing. Please use it with confidence.?Excellent performance and high quality. ?Good stability, long lifespan. ?Multiple protections to provide the safety of transportation.?Strictly inspected Leakproofness? Easy to install?1. Hold the left and right grip, and open the front cover carefully.2. Don't shake the carbon powder that is removed. Any remaining carbon powder may leak. Slowly pull the carbon powder and be careful to prevent leakage.3. Shake the carbon powder five or six times. Even the distribution of carbon powder in the container can improve the quality of printing.4. Label upward, insert the ink powder in place completely, and keep the container level.5. Do not install and remove carbon powder. This will cause carbon powder to leak.6. Carefully turn off the front cover.