Instruct: Classify the given Amazon review as either positive or negative.
Query: Color's fading? It might not be the cartridge

If your printer's color is starting to fade, (especially reds and magentas) and you're thinking the cartridge is running low, it might actually be the printer is dirty internally. Unfortunately, the cleaning process is intricate and not a do-it-yourself task. What's going on is dust has settled on the lenses and mirrors in the laser scanning unit. My sources at HP tell me this is a "dirty little secret" with the 1600 and 2600-series printers and that you'll probably need to have it cleaned every 18 to 24 months depending on how dusty your area is.I'm telling you this in a review for toner as this cartridge is used in the affected printers. Five stars for being a high-quality product that's not going to leak toner on you like some off-brand refilled cartrige might.