Ink Cartridge Refill Help Center

All 4, 5, & 6 Ink Cartridge Printer Models

Printer / Printhead Cleaning Procedures

To help overcome severe print quality performance, it is suggested you activate the printer’s internal printhead/nozzle clean procedure. It may also be necessary to perform a hot-water flush of the built-in (semi-permanent or permanent) PRINTHEAD. Refer to links below for your printer type.

Partially Jetting Nozzles


HP 564 Ink-Series Printer Models


HP 920 Ink-Series Printer Models


Canon Printhead Flush Procedure


Epson Printhead Cleaning




How an Inkjet Printhead Works — 4, 5 & 6 Ink Cartridge Printers: 




Printhead Life – All 4, 5, & 6 ink cartridge Printers: 

The replaceable or semi-permanent PRINTHEAD (or PRINTHEADs for HP88 & 940 ink-series printer models) will eventually fail over time with usage and age. Click here for more information.

Possible Printhead Failure? 



Advanced HP Printer Diagnostics

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

HP Printer Diagnostics



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