A Printer Error Has Occurred appears when trying to print, check the printer itself to see if an error code is displayed on the LCD or if the Alarm and / or Power
Verifying Printer Communication Error messages displayed on the [LCD Monitor] If a problem occurs with the printer, an error message may appear on the [LCD Monitor]. Check the message displayed on the [LCD Monitor] of the printer.
Please update your computer to macOS 10.12.1 and install the latest CUPS printer driver for your printer to correct the issue described in this article. If you do not wish to update your OS to 10.12.1, please follow the steps below to print correctly if a "Filter failed" error occurs.
Setting up the Printer (CP790) Do not pull or touch the [Ink sheet] with bare hands. Also, do not hold the [Ink Cassette] with wet hands. This may cause the printing errors .