Epson WF-R4640

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  • Arkynsaw
    Technician

    50+ Posts
    • Oct 2017
    • 54
    #1

    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 .
    Tags: paper, printhead, proceed, towel, unit
    • Phil B.
      Field Supervisor

      10,000+ Posts
      • Jul 2016
      • 22808
      #2
      Re: Epson WF-R4640

      Originally posted by Arkynsaw
      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...

        Comment

        • Arkynsaw
          Technician

          50+ Posts
          • Oct 2017
          • 54
          #3
          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 .

            Comment

            • lokahi
              Junior Member
              • Jul 2023
              • 1
              #4
              Re: Epson WF-R4640

              Originally posted by Phil B.
              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...
              Aloha,
              I have the same issue with my Epson Workforce Pro wf-r4640 printer that the above post was replying to. I would very much appreciate it if you could share the link to the service manual with me so I can hopefully take care of this problem.
              My email is keaoku@hawaii.rr.com

              Thanks,
              Eric

                Comment

                • dnpterry
                  Junior Member
                  • Sep 2023
                  • 1
                  #5
                  Re: Epson WF-R4640

                  Originally posted by Phil B.
                  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...
                  Hi Phil B Is there a video for this re the wf-r4640? Will another cleaner besides Simple Green work?

                  TYSM!

                    Comment

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