toner refill vs. toner cartridge

toner refill vs. toner cartridge

Has anyone ever tried (successfully) to fill a laser printer toner cartridge? I need to replace my brother hl-2040 laser printer's toner. I've shaken it up so many times and now my printer won't print. I looked on ebay to get a replacement toner cartridge and found a lot of sellers with 'toner refill kits' that cost about a third of what a cartridge would cost. I'm not sure how messy or how easy this is. I would be saving a lot of money by going with the kit but if it's worth spending more to avoid headache, splotchy pages or staining myself... I might just buy the cartridge. Thanks in advanced!
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