Your comment regarding 3rd party inkjet cartridges is a broad
generalization, and is probably more incorrect than correct. The
problem is it really does depend upon what printer brand and model is
involved, and, of course, the company producing the 3rd party inkjet
cartridge.
Many are equal or better than the OEM versions. Some are indeed
horrible, and going into this blindly is just asking for problems. A
number of reputable 3rd party inkjet companies exist, and reading this
and other newsgroups can help to define which are which.
Laser Printer toner cartridges, more often than not, are not made by 3rd
party companies, but refurbished OEM cartridges. The cost of making
these quite complex products just isn't justified to produce from
scratch. Instead all those cartridges that people bring to the retailer
when empty are sold to refurbishers/remanufactuers. Good rebuilders
will dismantle, test and replace all parts that are worn, including the
drum itself, and use a proper and quality toner to replace the
manufacturer's toner. Bad rebuilders don't take the cartridges apart,
don't test, and slap whatever toner they can get away with into the
cartridge, possibly without even emptying the left over toner in it.
The way to find out which is which is sometimes difficult. I suggest
you ask around, as you are, for good rebuilders, and look for companies
that offer written guarantees on their refill toner cartridges.
If you have starter cartridges in your machine needing a refill, they
are often in very good condition because they are often identical to the
longer life versions, and so have a lot of prints left in them (other
than lack of toner), and it may be worthwhile to have a local refiller
handle those for at least one refill, assuming you have a reputable
refiller in your area who knows how to do this, and will supply the
correct toner type.
Lastly, toner formulations are very variable. They vary in the
colorants used, the types of plastics and waxes used, the charge on the
toner particles, the heat range they work best at, and dozen of other
considerations. This is why there are so many types of toner out there.
Even for black toner, there are hundreds if not thousands of
formulations. So, toner type is very important - make sure the toner
offered is appropriate to the printer model you have... it can even ruin
the printer if it is inappropriate.
Art