how to repair epson printer head

{"cid":"91199747","title":"DX10 DX7 Epson Print Head Wall Printer Spare Parts Printing Machine Accessories","imgUrl":"https:\/\/img.chinax.com\/nimg\/ae\/bc\/1f023431dc01009d3c3043519e6f-200x200-1.jpg","attrs":{"Brand Name":"Maxwave","Model Number":"MW-TX800","Minimum Order Quantity":"1","Delivery Time":"Large Stock","Certification":"ISO9001\/SGS","Place of Origin":"China","Payment Terms":"T\/T, Western Union","Supply Ability":"200000\/Per Year","Packaging Details":"Wooden Case","Type":"Construction Tool Parts","Usage":"Wall Printer head","Material":"Alloy Steel","Head type":"DX10 double head","Print Head":"DX17 double head","Application":"UV Wall Printer"}}