When you see the Register a printer to Epson Connect message, click OK. Select Printer Registration, and then click Next. This will help if you installed an incorrect or mismatched. Try to set a system restore point before installing a device driver. It is highly recommended to always use the most recent driver version available. Download Epson WorkForce 545 Printer Firmware KR04G3 for Mac OS (Printer / Scanner).
Many printers and scanners use driverless technologies such as AirPrint or IPP Everywhere, which don't require additional drivers on your Mac. Printer and scanner drivers for Mac If you have an older printer that doesn't support driverless technology, your Mac might automatically install the driver software needed to use that device.