Hello and HELP! (please.......)

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  • pronicd
    Technician
    • Jun 2012
    • 21
    #1

    Hello and HELP! (please.......)

    Hi, new here, so please be gentle with me!
    I have just put a new drum and scraper blade in a Nashuatec 3913 photocopier.

    I assume that there must be some adjustments needed as even plain copies are coming out grey across almost the whole page.

    Any help or advice would be very much appreciated.
    Thanks in advance for any help anyone can give.....

    Cheers Russell F
    Tags: cloth, old drum
    • Aneurysm
      Administrator

      1,000+ Posts
      • Jan 2005
      • 1030
      #2
      Welcome to the site.
      "Remain calm. All is well." -Chip Diller, Nov 1963

        Comment

        • RRodgers
          Service Manager

          1,000+ Posts
          • Jun 2009
          • 1947
          #3
          Re: Hello and HELP! (please.......)

          Are you sure the blade is touching the drum? Are you sure you didn't get any sensors around the drum dirty? Are you sure you put the charge corona back in properly.
          Color is not 4 times harder... it's 65,000 times harder. They call it "TECH MODE" for a reason. I have manual's and firmware for ya, course... you are going to have to earn it.

            Comment

            • pronicd
              Technician
              • Jun 2012
              • 21
              #4
              Re: Hello and HELP! (please.......)

              Hi thanks for your insight. I just slid the whole assembly out, and was horrified to see that the scraper blade was no longer pointing down! It had bent back on itself and was pointing up instead!
              It was definitely pointing downwards when it was fitted, so am puzzled as to why it has done this.
              Any thoughts as to why this may have happened and how to ensure it doesn't do it again?

              Thanks in advance, Russell F

                Comment

                • mrwho
                  Major Asshole!

                  Site Contributor
                  2,500+ Posts
                  • Apr 2009
                  • 4299
                  #5
                  Re: Hello and HELP! (please.......)

                  Originally posted by pronicd
                  Hi thanks for your insight. I just slid the whole assembly out, and was horrified to see that the scraper blade was no longer pointing down! It had bent back on itself and was pointing up instead!
                  It was definitely pointing downwards when it was fitted, so am puzzled as to why it has done this.
                  Any thoughts as to why this may have happened and how to ensure it doesn't do it again?

                  Thanks in advance, Russell F
                  The blade adhered to the drum and flipped (known, not surprisingly, as blade flipping). When putting a new drum and blade you should always put some toner on the drum and blade (although not on some equipments) or, preferably, use setting powder (a toner-like substance that comes inside cloth bags - you just gently tap the bag onto the drum and blade and the setting powder comes out through the cloth's fibers onto the drum and blade). The toner/setting powder acts as a lubricant and prevents the new blade from adhering to the drum.

                  If you want to check the blade adherence by yourself, just grab the old drum and blade, clean them thoroughly with some cleaning product and, after they're dry, try to drag the blade along the drum and you'll see they tend to stick together.
                  ' "But the salesman said . . ." The salesman's an asshole!'
                  Mascan42

                  'You will always find some Eskimo ready to instruct the Congolese on how to cope with heat waves.'
                  Ibid

                  I'm just an ex-tech lurking around and spreading disinformation!

                    Comment

                    • pronicd
                      Technician
                      • Jun 2012
                      • 21
                      #6
                      Re: Hello and HELP! (please.......)

                      Hi guys, yup that was it for sure.
                      Have now put it back in (just before I got the reply about the blade flipping).
                      Seems to be working fine now.
                      However Mr clumsy has managed to break off one of the little plastic locating pegs at one end of the scraper assembly.
                      Not an issue - fortunately!

                      This time around, apart from the fact that there was toner left on the drum (which I did not clean off) I put the scaper blade on before dropping the drum in.
                      Last time I put the drum in first and then the scraper.
                      Is there a preferred re-assembly sequence, or is it probably just the lack of toner or powder that caused the problem?

                      Cheers Russell F

                        Comment

                        • pronicd
                          Technician
                          • Jun 2012
                          • 21
                          #7
                          Re: Hello and HELP! (please.......)

                          p.s. I love your avatar Mr Who? Fantabulous!

                            Comment

                            • pronicd
                              Technician
                              • Jun 2012
                              • 21
                              #8
                              Re: Hello and HELP! (please.......)

                              I was just looking and found the service manual forum.
                              Realise from the rules that I have to have five posts before being able to ask for a manual.
                              Fair enough (does that mean five posts under one thread, or five threads on wonders?).
                              However I do have a full manual for a Canon NP 62-16 if anyone needs one.

                              Cheers Russell F

                                Comment

                                • blackcat4866
                                  Master Of The Obvious

                                  Site Contributor
                                  10,000+ Posts
                                  • Jul 2007
                                  • 22954
                                  #9
                                  Re: Hello and HELP! (please.......)

                                  Originally posted by pronicd
                                  Is there a preferred re-assembly sequence, or is it probably just the lack of toner or powder that caused the problem?

                                  Cheers Russell F
                                  The blade usually comes dusted with a very small amount of setting powder, and sometimes the drum too, but it's rarely enough. You should always rotate the drum through a couple full rotations in the feed direction to make sure that blade won't flip.

                                  There are only two situations I am aware of, of drum blade flipping, if the blade survives initial installation:
                                  1) On Sharp Panthers it was not uncommon to flip the blade within the first thousand copies. If it survived 1000, it would last a normal life.
                                  2) In situations where the customer runs extremely low coverage (1%) the blade can start to hum or keen because of minimal toner usage. You see, toner acts as a lubricant to prevent the blade from vibrating, grabbing and finally flipping. Too little lubricant, and ... you get the idea.

                                  I'm sure that it's more than you wanted to know. =^..^=
                                  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

                                    • pronicd
                                      Technician
                                      • Jun 2012
                                      • 21
                                      #10
                                      Re: Hello and HELP! (please.......)

                                      LOL - no not at all! I like a detailed analysis!!

                                        Comment

                                        • blackcat4866
                                          Master Of The Obvious

                                          Site Contributor
                                          10,000+ Posts
                                          • Jul 2007
                                          • 22954
                                          #11
                                          Re: Hello and HELP! (please.......)

                                          You'll know if you ever hear that "keening". It's a very high pitch squealing like nails on a chalkboard. It make those little hairs stand up on the back of my neck. =^..^=
                                          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

                                            • pronicd
                                              Technician
                                              • Jun 2012
                                              • 21
                                              #12
                                              Re: Hello and HELP! (please.......)

                                              Interestingly enough it made no alarming sound at all. Not even like you or your spouse might have done when your cat brought in that mouse!

                                                Comment

                                                • mrwho
                                                  Major Asshole!

                                                  Site Contributor
                                                  2,500+ Posts
                                                  • Apr 2009
                                                  • 4299
                                                  #13
                                                  Re: Hello and HELP! (please.......)

                                                  Originally posted by pronicd
                                                  Interestingly enough it made no alarming sound at all. Not even like you or your spouse might have done when your cat brought in that mouse!
                                                  I like your description. Also thanks for the avatar comment - it's from a youtube video of a cat tech.

                                                  As for the manual, I believe you can place your request - at least you're not doing it on the very first post, and that's what gets people angry around these parts.
                                                  ' "But the salesman said . . ." The salesman's an asshole!'
                                                  Mascan42

                                                  'You will always find some Eskimo ready to instruct the Congolese on how to cope with heat waves.'
                                                  Ibid

                                                  I'm just an ex-tech lurking around and spreading disinformation!

                                                    Comment

                                                    • pronicd
                                                      Technician
                                                      • Jun 2012
                                                      • 21
                                                      #14
                                                      Re: Hello and HELP! (please.......)

                                                      Which parts do people here get angry around then: Drums, Corona wires, fusers???

                                                      Will request a manual then if no one objects!

                                                      Cheers!!

                                                        Comment

                                                        • blackcat4866
                                                          Master Of The Obvious

                                                          Site Contributor
                                                          10,000+ Posts
                                                          • Jul 2007
                                                          • 22954
                                                          #15
                                                          Re: Hello and HELP! (please.......)

                                                          Originally posted by pronicd
                                                          Interestingly enough it made no alarming sound at all. Not even like you or your spouse might have done when your cat brought in that mouse!
                                                          Sorry to say, blackie is just an interesting JPG, sent to me by a friend who's sent me a number of potential avatars. He looks a little like Felix (less 10#). I was "blackcat" long before we had a black cat.

                                                          Only the kittens, Rosie & Roxie, would have a clue what to do with a mouse. The rest of the group have been domestic for so long that they would probably run from a mouse. Now I wouldn't want to be an insect that strayed into our home. They are usually tortured to death then eaten. Then the cats get hold of any that are left.

                                                          Mrs. blackcat would most likely try to save the poor mousey from the kittens. I'd be rooting them on. =^..^=
                                                          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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