Sharp SF-2314 shooting blanks

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  • joni618

    Sharp SF-2314 shooting blanks

    I am working on a Sharp SF-2314 copier for a local Dr. who is T\'d-off at the local Sharp dealer. Seems they did a PM on it and it started giving blank copies immediately. He asked me to check it for him. When he brought it in. it was making totally blank (white) copies. I cleaned it which it needed and replace the developer. The charger looks o.k. Now I\'m stumped! Can anyone give me some sugestions? Thanks for any help you might have.
  • raym
    Technician

    50+ Posts
    • Apr 2005
    • 62

    #2
    Re:Sharp SF-2314 shooting blanks

    did you check the transfer corona? run a copy and try to stop midway under drum and try to look at your image on drum. if you see it, then charge and developer are working ok and you are most likely looking at a shorted transfer corona.

    good luck,
    ray

    Comment

    • joni

      #3
      Re:Sharp SF-2314 shooting blanks

      I checked the drum after running a copy halfway thru and there is no image on the drum.

      Comment

      • raym
        Technician

        50+ Posts
        • Apr 2005
        • 62

        #4
        Re:Sharp SF-2314 shooting blanks

        hi joni, i\'m not the most proficient on sharps but going by the theory of operation, i would say check your charge corona very carefully, make sure your developer roller is turning, and check your high voltage transformer in that order. i hope this helps some.

        good luck,
        ray

        Comment

        • joni

          #5
          Re:Sharp SF-2314 shooting blanks

          How do I test that the developer roller is turning? I understand that on this unit it sometimes turns by hand but not when installed into the copier! Thanks for your help, Ray

          Comment

          • raym
            Technician

            50+ Posts
            • Apr 2005
            • 62

            #6
            Re:Sharp SF-2314 shooting blanks

            hey joni, i meant by hand as that is the only way i know of on that particular unit. i hope that you have success.

            ray

            p.s. check that your brush on mag. roller is sufficient height and that its orientated towards drum.

            Post edited by: raym, at: 2005/05/24 13:03

            Comment

            • Wild Bill
              Senior Tech

              500+ Posts
              • Jul 2005
              • 774

              #7
              Re:Sharp SF-2314 shooting blanks

              I would suspect the developer unit on this machine. Is developer up against the drum, correctly?
              Izzy

              Comment

              • R. Hunt
                Technician
                • Feb 2008
                • 23

                #8
                Clean the scanner rails, make sure they are lubed

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22748

                  #9
                  I realize we don't get to choose what we work on most of the time, but this machine isn't much. Wasn't ever much. Whomever sold the PM parts would have been much better off putting that money towards a real copier.

                  I happen to agree that it is probably some sort of developing issue. But it's still not worth fixing. =^..^=
                  If you'd like a serious answer to your request:
                  1) demonstrate that you've read the manual
                  2) demonstrate that you made some attempt to fix it.
                  3) if you're going to ask about jams include the jam code.
                  4) if you're going to ask about an error code include the error code.
                  5) You are the person onsite. Only you can make observations.

                  blackcat: Master Of The Obvious =^..^=

                  Comment

                  • mtech
                    Technician

                    250+ Posts
                    • Mar 2007
                    • 307

                    #10
                    Must be main charge or developer.

                    Comment

                    • nightshade
                      Chromographic Supremesist

                      100+ Posts
                      • May 2007
                      • 158

                      #11
                      I agree any of the 2000 series is old and decrepit.

                      With that aside. To check to see if the DV magnetic roller is turning. Pull out the drum unit, wipe your finget on the mag roller to brush off a strip of developer, put it back together and make a copy, remove the drum again and see if the roller has turned.

                      Also to check to see if you have charge, turn room lighting off and go into crop 8 and run the main charge with the front door cheated. You should see a purplish/blue glow if it is on. Also if you see any "lightning strikes" to the drum, the charge unit is dirty or defective and the arching will cause issues.

                      Anotherthing to try to rule out the optics path is to make a copy with the top cover open "skyshot", with this you should get a solid black copy. This works good too when you stop it in mid copy to check for image on the drum.

                      Comment

                      • aikon_ngage

                        #12
                        hey joni

                        try to check the xfer corona unit and contact, also dont forget the charge unit w/ grid ,the hvt unit and connectors. also the dv unit if it is rotating or properly set in place. changing developer doesnt help without checking this stuff first.

                        Comment

                        • deep
                          Trusted Tech

                          100+ Posts
                          • Jun 2008
                          • 208

                          #13
                          A post 3 years ago, joni will not back.
                          Kenny

                          Comment

                          • nightshade
                            Chromographic Supremesist

                            100+ Posts
                            • May 2007
                            • 158

                            #14
                            Originally posted by deep
                            A post 3 years ago, joni will not back.
                            WOW didn't notice. Someone musta been very bored to dig that far back....

                            Comment

                            • blackcat4866
                              Master Of The Obvious

                              Site Contributor
                              10,000+ Posts
                              • Jul 2007
                              • 22748

                              #15
                              Oops! If had been paying any attention to the date, I'd have let that one pass......
                              If you'd like a serious answer to your request:
                              1) demonstrate that you've read the manual
                              2) demonstrate that you made some attempt to fix it.
                              3) if you're going to ask about jams include the jam code.
                              4) if you're going to ask about an error code include the error code.
                              5) You are the person onsite. Only you can make observations.

                              blackcat: Master Of The Obvious =^..^=

                              Comment

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