I have tried several third party toner cartridges for our H825 printer and so far they work the best. They're not perfect, but compared to the Dell brand, which costs five times as much, it's a compromise. I can't say we've ever hit 4000/5000 page count, but it depends a lot on page coverage. Whatever the case, the lower price makes up for it. From time to time I get ghosting of text on my prints, but this happens intermittently and isn't really a pattern. Sometimes you can print five pages and the last two have halos. Then you print the same five pages again and everything is fine. It probably depends on how the toner powder adheres to the Dell drum cartridges.
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