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‎10-28-2020 02:08 PM

HP Recommended
Product: LaserJet Pro 400 m401dn
Operating System: macOS 10.15 Catalina

I can suddenly no longer print on my LaserJet Pro 400 m401dn printer from my MacBook Pro (as of 10/23). Not sure if it's due to recent upgrade to version 10.15.7 of macOS Catalina.  Checked all connections and tried unplugging and replugging. Now I get the error message that I need to reinstall the printer software but it came on a CD and my MacBook doesn't have a disc drive. Anyone have any suggestions? Or is it time to get a new printer? 😞 

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1 person had the same question
1 REPLY 1

‎10-28-2020 07:02 PM

HP Recommended

Check this link for an explanation of the recent problem and a solution

 

https://www.bleepingcomputer.com/news/security/mac-users-unable-to-print-after-apple-revoked-hp-cert...

 

If you find the information provided useful or solves your problems, help other users find the solution easier by giving kudos and marking my post as an accepted solution.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



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