To be used with:Roland CJ-540 Roland FJ-540/740K/740 Roland SC-540/545EX Roland SJ-1000/1045EX/540/545EX /640/645EX/740/745EX Net Weight:500g/pc Packing size:35cm*25cm*6cm(13.8 *9.9 *2.4 ) Gross Weight:800g/pc Remarks:OEM
Through strict selection of electronic components the new printhead board has been passed the aging testwith maximum loading time of electricity to 120 hours. Most of the electronic components of other brand printhead boards are not in good quality and also not been tested for aging performance as well as short time of loading of electricity.
This new printhead board applies aluminumheat sinks which gives good performance of heat dissipation.
Other brand printhead boards use iron heat sinks which donÂt dissipate heat well.
1.Disconnect the cables from the head board. 2.Move the screws and disconnect the connector. 3.Place the head board to the new one. 4.Connect all the cables to the head board. 5.Carry out the following checks: Â THERMISTER CHECK Â HEAD UP/DOWN SENSOR CHECK Â FAN ON THE HEAD BOARD Quality report: