Old toner

[John Kaur]

I've refilled carts, toner & ink for 25 years, mostly successful, for
myself, also bought from refillers.
If a particular unit has the same engine, usually can use the same toner,
for
other engines from the same manufacturer & series, same resolution, takes
some study,
and an knowledge, experience, unless you plan on investing time learning,
better to buy from some one else who has.
John>