Read this tip to make your life smarter, better, faster and wiser. LifeTips is the place to go when you need to know about Using Toner and other Printer Ink topics.
In the past, when a toner cartridge was close to empty, it could help to shake the cartridge around to loosen up any residual toner left in the case. Today, there are no-shake toner cartridges that will do away with this time-consuming process. No-shake toner cartridges control the flow of toner and redistribute it constantly. With these models of toner cartridges, you can be sure that you get every penny's worth of toner in your printing. Presently, HP offers these types of toner cartridges in only a few models. Soon, these will become far more available in a variety of models, probably including yours.
It's a good tip but here's a little secret many don't know about that, in some instances, can save BIG BUCKS: You can coax TONS of additional toner out of several models of cartridges by simply taping over one the clear windows located at each end of the cartridge. Just make sure that you use tape that's NOT transparent. The printer monitors toner levels via those windows.
For obvious reasons, printer manufacturers will never tell you about those windows.