Canon NP6317 shadows

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  • shomyx
    Technician
    • Nov 2007
    • 36
    #1

    Canon NP6317 shadows

    Hi! I have very strange problem with this np 6317.

    I change OPC kit, fixing roller, fixing roller bushings, pressure roller, oil roller, clean everything, set fixing roller pressure with C13 procedure, set heater temperature C9 on 190 Celsius (cant set more but in SM says up to 230) and still I have shadows on copies. What, where, how???? I try with other Drum unit ( but when forced work with open front doors I cant see shadows on copies when passing on redelivery belt so i think that problems are in fixing unit but where) have no idea? please help!!!!!!
    Last edited by shomyx; 11-17-2010, 09:54 AM.
    Tags: belt, canon, change, copies, degrees, dirty, fixing, front cover, jpg, kit, pressure roller, unit, work
    • shomyx
      Technician
      • Nov 2007
      • 36
      #2
      Well I think that I found where is problem! I clean toner unit from old toner , and put new one, and all my problems ( I hope ) are gone!!! possibly moisture in toner, old toner or replacement toner ( maybe I never found out)...

        Comment

        • Herrmann
          Senior Tech

          Site Contributor
          500+ Posts
          • Jan 2006
          • 792
          #3
          You went in the wrong direction with your fusing temperature, set it to 160-165 degrees celsius
          If sometimes you feel a little useless, offended and depressed always remember that you were once the fastest and most victorious sperm of hundreds of millions!

            Comment

            • petra
              #4
              Edge Shadows

              Hello,

              I have a problem with my old np6317. The drum roller is dirty at the edges and the copies are out with both shadows. I attach an image

              I have cleaned the rollers of the toner and drum but in the next copy, the shadows on the copy and the dirty in the drum droller is here again.

              Can anyone help me?

              Thanks in advance

              PD: Sorry for my english.

                Comment

                • montana
                  Trusted Tech
                  • Aug 2008
                  • 393
                  #5
                  Originally posted by petra
                  Hello,

                  I have a problem with my old np6317. The drum roller is dirty at the edges and the copies are out with both shadows. I attach an image

                  I have cleaned the rollers of the toner and drum but in the next copy, the shadows on the copy and the dirty in the drum droller is here again.

                  Can anyone help me?

                  Thanks in advance

                  PD: Sorry for my english.
                  hi...if you working on A4 paper size change the orientation to A4R and see if the same problem still on..if doesn't replace the drum and cleaning blade..or the entire drum unit
                  i hope this help
                  regards

                    Comment

                    • zaza
                      MECANOGRAPHE

                      1,000+ Posts
                      • Mar 2008
                      • 1095
                      #6
                      hello l have lot of work in this model of canon np6317 ...last day l repaired two copiers canon np6317 ...so firstly we should be use the original toner ..or other same bast ..like KATUN ...other something ..because this model is very old ..most model of np6317 and np1550..6220... have bad toner unity ...l think her time is over ...some np6317 have 256369 in her counter ...so we must be found the new toner unity ...second l agree our tech Montana you should be check the best with A4R ..it have difference in her developing surface ....but ..it have any relation by the fusion section ...the shadows problems in developing section ...good luck ..and we wait for any other problems ..
                      BEST TECHNICIAN . NICE PEOPLE .

                        Comment

                        • shomyx
                          Technician
                          • Nov 2007
                          • 36
                          #7
                          For using KATUN toner I must say NO ! for that model wery bad toner . I have wery bad expiriance with that toner for this model ( a lot of black dots, shadowing text,after making cca 1500-2000 copies you have layer of toner on fixing roller what is wery problematic,etc...) dont use that toner- I stoped. If you not shure where shadows start use one trick- open front cover, put screwdriver in slot with switch, turn on make copy and just observe paper from beginig to end of copy proces, but in this case probably is OPC and cleanig blade for OPC.

                            Comment

                            • copys
                              Junior Member
                              • Jan 2011
                              • 7
                              #8
                              Edge shadows

                              This is my first post, so hello all.

                              Right the edge shadows as shown in the picture attached by Petra are down to worn drum unit.
                              The shadows on the 6317 are usually down to toner issue in the dev unit, if all other service work is done ie, clean optics, drum filter glass etc...
                              replace and test, should be fine.
                              I hope this helps

                                Comment

                                • mrfixit51
                                  Lead Service Technician

                                  1,000+ Posts
                                  • Oct 2008
                                  • 1975
                                  #9
                                  Originally posted by copys
                                  This is my first post, so hello all.
                                  Welcome aboard!
                                  "Once a King, always a King, but once a Knight is enough!"

                                    Comment

                                    • Kyo fan
                                      Trusted Tech

                                      250+ Posts
                                      • Dec 2013
                                      • 368
                                      #10
                                      Re: Canon NP6317 shadows

                                      Hi everyone.

                                      I decided to ask here, rather than opening a new thread. I came across one of these oldies and could use some help, since I'm not a Canon tech. I've had a vertical void on copies, so I cleaned optics, but it didn't help. Than i cleaned the drum corona, and the void was gone but copies became black as you can see here: scan.pdf

                                      Any tip much appreciated.

                                        Comment

                                        • mrfixit51
                                          Lead Service Technician

                                          1,000+ Posts
                                          • Oct 2008
                                          • 1975
                                          #11
                                          Re: Canon NP6317 shadows

                                          Download Canon NP6317 Service Manual

                                          The manual can be downloaded here. I would pay attention to chapter 10. The AE exposure
                                          adjustment may get you where you want to be. Have not touched one of these clam shells
                                          in a long time. Doesn't it have a density control in the front upper shell area? There used to
                                          be a procedure when placing a new drum in the copier to get the bias set up. Cleaning the
                                          charge corona may have put this out of wack,, worth investigating at any rate...

                                          good luck

                                          Mrfixit51
                                          "Once a King, always a King, but once a Knight is enough!"

                                            Comment

                                            • Blizzoo
                                              Senior Tech

                                              Site Contributor
                                              500+ Posts
                                              • Aug 2013
                                              • 597
                                              #12
                                              Re: Canon NP6317 shadows

                                              You can adjust the height of corona wires on charge and transfer sections,there is one plastic screw at each end.
                                              And make sure you clean the last mirrors located underneath scanner section covered by a black housing.
                                              Defects are simple, our mind is complicated

                                                Comment

                                                • blackcat4866
                                                  Master Of The Obvious

                                                  Site Contributor
                                                  10,000+ Posts
                                                  • Jul 2007
                                                  • 22943
                                                  #13
                                                  Re: Canon NP6317 shadows

                                                  Did you notice this was a 4 year old thread? He sure has patient customers if he hasn't fixed it by now. =^..^=
                                                  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

                                                    • Blizzoo
                                                      Senior Tech

                                                      Site Contributor
                                                      500+ Posts
                                                      • Aug 2013
                                                      • 597
                                                      #14
                                                      Re: Canon NP6317 shadows

                                                      Originally posted by blackcat4866
                                                      Did you notice this was a 4 year old thread? He sure has patient customers if he hasn't fixed it by now. =^..^=
                                                      Kyo Fan resume it
                                                      Defects are simple, our mind is complicated

                                                        Comment

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