Brother TN-2220 Toner Cartridge Black (High Capacity)

Brother TN-2220 is easy to replace. The enclosed receipt to send the old toner free for recycling is positive. According to the product data, the page yield is 2600 pages. I have already used up two TN-2220. Page yields were approximately 1,700 pages and approximately 1,100 pages, well below the suggested page yield. I print all kinds of documents: text and drawings with alternating high and low page fill levels. I think Brother probably follows a standard to determine the leaf yield, but then that standard does not correspond to the average 'ink consumption' of an average filled page surface. To increase the page yield, I changed my printer setting from 600 dpi to 300 dpi. I cannot say how much this yields, the toner is not empty yet. I don't switch on the toner-saving function of my printer, because I think the quality of figures deteriorates too much. Fine lines in figures/graphs are then no longer visible. After almost 1000 pages, the printer reports that the toner is almost empty. Shaking the toner once will clear the message. If the printer detects an empty toner, it will stop printing, even if it is not noticeable in the quality of the prints that the toner is empty. On the one hand, this is positive, as there is no needless waste of paper by printing blurry prints because the toner is empty. On the other hand, it raises the suspicion that the toner is not completely empty. And effectively with the same operation: remove toner, shake, slide with the knob of the drum, replace toner, up to 50 prints of normal quality can still be printed. This review is a simple observation based on my experience with Brother. I have no experience with other brands, maybe they use the same standard and therefore also advertise print yields that do not correspond to realistic printing behaviour.