Attention required notification blocked printing- how to fix it?

[Mary Potter] July 7, 2020
Query
First time on my hp envy 4520 printer, I have seen an attention-required notification. This notification blocked the printing process on my printer. I have tried restarting my printer several times, but it did not help me. Please provide some guide to fix it.
Response
Hello Mary. The attention required notification occurs due to outdated firmware drivers or some other technical problems. Please read our knowledge base article- how to fix attention required message on hp envy 4520 printer.
By Technician- [Kevin Walker]