Ink Cartridge Refill Help Center

HP 901 Extended Self Test

To verify HP Officejet J4500, J4600 and 4500 general printer and ink cartridge print quality performance conduct an extended self test (‘Tap 41’):

1) Press the ‘Cancel’ and ‘OK’ buttons at the same time and release. The diagnostic pattern will print.

2) Evaluate color stair-step patterns.

Extended Self-Test (Tap 10):


General Printing & Cartridge Tips (select printer model):

HP Officejet 4500 Printer:

HP Officejet J4680c Printer:

HP Officejet J4680 Printer:

HP Officejet J4660 Printer:

HP Officejet J4624 Printer:

HP Officejet J4580 Printer:

HP Officejet J4540 Printer:

HP Officejet J4550 Printer:

HP Officejet J4524 Printer:

HP Officejet 4500 (G510a) Printer:

HP Officejet 4500 (G510g) Printer:

HP Officejet 4500 (G510n) Printer:

HP Deskjet P2500 Printer:



Advanced Diagnostics

To view advanced diagnostics tests for your printer, click here:

HP Printer Diagnostics


NOTE: if you are unable to find a refill store nearby and you are trying to cut ink costs, Inkplicity Logomay we suggest you try a remanufactured HP 901 & 901XL ink cartridge from Inkplicity as their ink cartridges typically have the lowest cost in the USA, have a high reliability rating, come with a 1-year warranty and provide free shipping for all orders above $20 (purchases available for US Residents only).  These are original ink cartridges which have been refilled and have been electrically bench tested to confirm proper performance.



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