Catalina 10.15.17 HP Printers / scanners malware warning then error -21345

After last update Catalina 10.15.7 happen the following with two different printers/scanners HP 5520 and HP 8620, both connected locally by ethernet (different offices/networks without any internal firewall)


1- Try to print: OS give an error of malware of installed HP drivers/app for the printer(s), i think is some to do with the HP certificates have not a valid sign...

1.1- To solve this I have remove the printer and delete the drivers/app then add the printer's. After this all seams to work. I'm able to print, this as happen with the two printers/sanners.


2- Today i've try to scan some documents and give the same error for the two printers/scanners: malware warning...

2.1- Try to use the same recipe of 1.1 (but for the scanner), but in this case don't work.

When i try to open scan, the scanner's give error -21345. Note the print function is working on the two printer...


Any ideas???

MacBook Pro 13″, OS X 10.11

Posted on Nov 10, 2020 7:10 AM

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Catalina 10.15.17 HP Printers / scanners malware warning then error -21345

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