This is a brand - new Dell S5840Cdn (6W75Y) return yellow toner with a high yield of 6000 pages. Dell, a well - known brand, ensures reliable quality for your printing needs.

Using this Dell toner is easy. First, make sure your printer is turned off. Open the toner compartment and remove the old toner. Then, take out the new yellow toner from its packaging, gently shake it a few times to evenly distribute the toner inside, and insert it into the correct slot in the printer. Close the compartment and turn on the printer. When it comes to maintenance, keep the toner in a cool and dry place. Avoid exposing it to direct sunlight or extreme temperatures. If you notice any printing issues like streaks or faint colors, it might be time to replace the toner. Also, don't try to refill the toner on your own as it may damage the printer and void the warranty.