Buying cartridges invariably be accompanied by their check for originality. This provides insurance against poor quality products, damage to the printer, and a belief in high quality printouts. Such test begins with simple things. First of all, pay attention to the packing cartridge. What is the quality of packaging material (cardboard, design, lettering). And the sticker is on the box to the right place and the execution of equal parts of which contrast as well as the inscription "ORIGINAL TONER" when you turn the box in the horizontal plane should change color from dark blue to light blue.
At the bottom of the label is a set of symbols denoting individual number of the cartridge. The second option is different protective marks a lighter shade of the background in the absence of inscriptions "invent". In addition to these options, trading networks are still caught Laser genuine HP print cartridges with old mark. The background of these labels is also divided into two parts and they shimmer in color from dark blue to light blue at the turn, but the inscription "ORIGINAL TONER" is missing. Buying cartridges HP LaseJet with the old sticker must be spilled toner, scratches or any kind have been signs that the cartridge was already in use. All tear-off tabs should be filling in one piece. By checking the cartridge to the above, you Follow manufacturer's advice, current at the time – in January 2010. And believe me, this information will become obsolete any time soon.