Continuous Ink Supply System For HP Officejet 4500 Printer

Our continuous ink supply system for HP officejet 4500 All-In-One printer using the HP 901 cartridges.


  1. Bukowszky

    cool. mine makes constant clicking noises when it’s idle. (as if some motor keeps running inside) Does yours? It’s not loud, but it is disturbing.

  2. inkproducts1

    We do not hear any clicking sound when idle. Not sure why your printer would do that.

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