“So far, so good......but I won't know how long the toner lasts, until i use my fax machine, over several months/years.....I don't know of an easy way to determine volume of toner.”
“I purchased this TN450 Toner cartridge because my printer stated I was low on toner. So far, I am waiting for my present cartridge to run out of toner so I can try this toner. Thank you for very fast shipping and very good price.”
