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Thread: Epson WF-R4640

  1. #1
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    Angry Epson WF-R4640

    Having print quality issues , not getting good fill on the nozzle check and getting black streaks with kind of a swishy look , not consistent , like crud on the underside of the printhead . Tried cleaning the printhead thru the op panel like an end user , then tried putting a paper towel under the printhead with head cleaner on it and let it soak for a couple hours , then wiped with a dry Paper towel . Still no better . Does anyone have a service manual or any ideas how to proceed ? The printhead is buried and is fed from bags of ink on the side of the unit thru tubes , so I can not purge this unit as sometimes works . Thanks in advance , Ark .


  2. #2
    Service Manager 2,500+ Posts
    Epson WF-R4640

    Phil B.'s Avatar
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    Re: Epson WF-R4640

    Quote Originally Posted by Arkynsaw View Post
    Having print quality issues , not getting good fill on the nozzle check and getting black streaks with kind of a swishy look , not consistent , like crud on the underside of the printhead . Tried cleaning the printhead thru the op panel like an end user , then tried putting a paper towel under the printhead with head cleaner on it and let it soak for a couple hours , then wiped with a dry Paper towel . Still no better . Does anyone have a service manual or any ideas how to proceed ? The printhead is buried and is fed from bags of ink on the side of the unit thru tubes , so I can not purge this unit as sometimes works . Thanks in advance , Ark .
    i have the service manual... give me your email addy.

    one trick I have found... take a paper towel fold n cut to fit in the track where the printhead runs. Wet the towel with Simple Green Cleaner... push printhead over towel... now spray and blot up the docking station ( be sure to clean the wiper blade well ) ... let it sit for about 30 or so minutes ..remove towel and try a nozzle check. This has worked on every Epson... HP...Brother..and FP ink/heads.... so far about 30 machines...


  3. #3
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    Re: Epson WF-R4640

    Thanks Phil B , I did receive the link and downloaded the file , will get a look see and try to reply here when I get to the end of it .


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