www.massprinters.com is not one of the official Customer Support companies and is not encouraged by anything this website is to make it easier for customers to download drivers.
hpfulldrivers.com is a regular publisher website only to help customers and not to sell official company products.
www.hpfulldrivers.com is not a company under HP (Hewlett-Packard Company NYSE) Customer Support and is not encouraged by anything.
hpfulldrivers.com only tries to collect and download all drivers and software to make it easier for clients to download drivers or the like.
All drivers and Software Files and Software are provided and hosted by HP Corporate Support.
So, if you have problems with HP printer products, be it, drivers, software or hardware, please contact HP Customer Support.