Refilling the cartridges can cut your cost by eighty percent. HP Toner cartridges are vibrant in color. They have bold graphics . They assure the natural and realistic photo quality.
Here are some tips to refill CB540 cartridge.

1.Peel back the cartridge level from the surface.
2.Pearce a hole in the toner compartment.
3.Empty all your toner. This is the most important step.

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