Epson printers are known in the market for producing quality output at faster pace Epson printer is the most preferred of all the printers by the users and the credit goes to its advanced technologies that are added into them day by day. Epson printer being technical product often land themselves into technical troubles such as above mentioned error E 01 occurs if the Epson printer is not able to finish of its self test if your Epson printer has encountered this error it is advisable to turn the printers power off unplug the connection and then again plug in after sometime and turn the power on if still the error remains then contact Epson tech expert for further assistance To Know more about that, you must visit the link http://www.printerhelpnumbers.co.uk/epson-printer-customer-care-uk.php