While the error code 21400 persists on my MAC OS, all I knew was to restart my device. However, this fixed the issue for quite some time but after a while, it became more stubborn.
The below-mentioned solution is the easiest way out if you are facing the error code 21400.
- Firstly start by clicking on the Apple menu
- Go to the System Preferences
- Now you will be able to witness the option of “Print and Fax” or “Print and Scan” or “Printers and Scanners” on the screen
- Make a selection as soon as you observe the aforementioned options
- Click on the option of “Resetting Printer Settings” after right-clicking on the Printers windows
- Once the confirmation window pops up you have to select on “Reset”
- Click on “OK” after you have entered the Administrator name and Password
After the execution of the above-mentioned steps, you will get rid of this issue.For instant help, you can chat with Errorsdoc.com expert.