Fix The software for the printer was installed incorrectly on Mac
It is recommended that you try out each of the below-mentioned workarounds and then see which one spells out success. So with that in mind, let’s get started.
FIX 1: Verify Certificate Date
First off, make sure that the printer’s drivers aren’t expired. If they are, then you should first disconnect your Mac from the internet, change the date on your Mac prior to the expiration date, and then retry the installation. Or if that doesn’t work out, then try out our second fix listed below.
FIX 2: Add Printer via IP Address
If you’re having an expired encryption certificate for your printer and the aforementioned tweak didn’t spell out success, then your next course of action is to install the printer via its IP Address. Here’s how it could be done:
FIX 3: Manually Place PPD Files
FIX 4: Install Unsigned Drivers
If you could only get hold of the drivers from unknown developers or they are unsigned but you are ready to take the risk, then here’s how you to install these unsigned drivers. That’s it. These were the four different methods that should help you fix the “software for the printer was installed incorrectly” error on your Mac. If you have any queries concerning the aforementioned steps, do let us know in the comments. We will get back to you with a solution at the earliest.
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