Cnet.com has commented many times that many ink jet printers are sold below cost and they expect to make the $ on refills. IIRC they also say that the printers ink cart’s actually have less ink then they used to. One brand (HP?) actually has a chip in the ink cart., which deactivates the ink cart. when it is empty and actually sued another company making a replacement cart (w/ a copy of that chip) under the DMCA.
Epson printers used to have (maybe still has) a wax seal that is punctured once installed in the printer. This wax seal was not made to be removed or reused and has a good chance of leaking. As for using color w/ just b&w (OK the printing is in black but I’m using the term b&w anyway) prints, it may be a good thing as the epson print head is in the printer, not the ink cart. like HP. Long time w/o using the color ink cart. usually results in clogged print heads, this has been more of an issue with many saying turn off color printing till needed to save ink, the solution seems to be to use a small amount of color in b&w printing.
As for laser, I have owned 3. The 1st one I got in 92 a epson action laser 2 retired in 99 (but might have been as late as 01)?. It was a workhorse w/ nare a problem but the cost of toner and the photoconductor unit rose over the years to the point that I can get a new HP laser for less the the cost of the 2. I have no doubt it would still be going, actually it may still be as I sold it on ebay years ago. The photoconductor unit I don’t think is user replaceable anymore but more durable so it doesn’t need replacement regularly. This got 1 replacement and needed a 2nd when I sold it it it’s apx 7+ year stay w/ me.
The 2nd is a HP 1200, which I got to replace the Epson above. The 1200 just came out, so if someone can come out with the year the hp 1200 came into production I will know for sure how long the epson lasted. The 1200 is faster but sometimes prints on a slight angle, it doesn’t matter 99.99% of the time I print. The cost was around $250-$350, again I really don’t recall, it wasn’t the cheapest one, but still considered a home printer, not a work printer, though I use it for work and have seen this model many times in other businesses.
The 3rd is a Lexmart E210, this printer did a terriable job at printing maps, something that I do a lot. The streets were very light, too light even when set to print the darkest setting, but text is fine, perhaps newer drivers would help, perhaps not. This one cost on sale $50 and does go through toner a bit faster then the 1200, but still far cheaper then the ink jet route. Besides the graphics it is a very good low cost printer and has no trouble w/ simple b&w printing.
Some laser printers will come with a partly filled toner cart and will run out sooner then a normal one, after all the toner for the E210 cost $10 more then the entire printer, so it wouldn’t make sense giving me a full toner cart as I would just buy a new printer. I also recomend replacing your 1st toner cart early (before it shows singes of giving out) and saving it. The reason is that you may find you need to print something and find you are running out of toner, this allows you to just slip in the old one and continue printing.