Epson L575 Error 0x86 Epson L575 Error code 0x86 Display on PRINTER: Description and Troubleshooting: PWM Duty Error. PIS Failure. If you are an Epson L575 printer user and the error code 0x86 is displaying on your printer, it indicates two possible problems: PWM (Pulse Width Modulation) duty error and PIS (Print Image Single Scan)…