They are usually a bit low as they base the page count on the lowest ink usage settings.
The page yield of Lexmark cartridges fluctuates depending on the type of Lexmark cartridge you have. If you have a high yield Lexmark cartridge, you can expect to print up to 475 pages per cartridge.
Cyan Curtis Young Toner Cartridge can yield up to 6000 pages
The difference is that the brother tn330 is a low yield cartridge and the tn360 is a high yield cartridge.
The yield of this is 9000 pages based on standard image 5%.
A 61a prints less pages then a 61x. 61X have 3000 pages yield while 61A have 2000 pages yield capacity.
"HP has an XL series of ink cartridge, that has capability of producing 750 pages. These high yield black ink cartridges will help prolong intervals between ink purchases."
High-yield toner cartridges have more toner in them than normal toner cartridges. A high-yield toner cartridge can reduce the cost of toner per page by half. Much of the cost of toner cartridges is related to the housing not the toner itself.
The cartridge can yield up to 32000 pages at a coverage of 5%. So an increase in coverage will reduce the amount that can be printed.
The Curtis Young TN7203 Yellow Toner Cartridge has an approx yield of 8000 pages.
In my experience, the theoretical yield is usually higher, if everything is measured accurately.
The Brother LC41C is a cyan ink replacement cartridge, not a printer. The cartridge sells for about $10 and can yield about 400 pages at 5 percent coverage.
Yield usually refers to yield to maturity. If a bond is trading at par it usually means the yield to maturity is equal to the coupon.