which holds more ink 51 HP cartridge or 21 cartridge?

2 Answers

  • Me2
    Lv 7
    6 months ago

    The HP 21 is an ink cartridge, and therefore holds more ink than the HP 51 that contains toner powder and no ink whatever.

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  • 6 months ago

    HP 51 hold approximately 20 ml of ink

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