1.Installation method is the same as original cartridge.
2.Because of the unstable quality of HP 5000/5500 auto reset chip, please match with our HP electronic card for use.
3.Don't install 3 sets cartridge continually, if replace the cartridge, install it after power off.
4.Please use reliable quality ink.
Advantages
Simply use, conveniently refill, stable and reliable quality.
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