7 POLYGON MIRRORS

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  • Toxic
    Senior Tech

    500+ Posts
    • Dec 2009
    • 697
    #16
    Re: 7 POLYGON MIRRORS

    Then check developing units , non OEM toners could cause this problem.
    Did you try remove transfer belt, once i found old jammed paper above transfer belt and it acts like scrapper for transfer belt.

    Edit:after look again test prints, you have almost identical problem on all colors which is suggesting it is problem with transfer belt.
    Maybe it was exposed to direct sunlight at some point?

      Comment

      • Gift
        Service Manager

        1,000+ Posts
        • Mar 2011
        • 2459
        #17
        Re: 7 POLYGON MIRRORS

        Originally posted by Toxic
        Then check developing units , non OEM toners could cause this problem.
        Did you try remove transfer belt, once i found old jammed paper above transfer belt and it acts like scrapper for transfer belt.

        Edit:after look again test prints, you have almost identical problem on all colors which is suggesting it is problem with transfer belt.
        Maybe it was exposed to direct sunlight at some point?
        I think you can expose the transfer belt to sunlight all day long^^

        I agree that this might be prob with non-oem stuff.

          Comment

          • tulintron
            Senior Tech

            Site Contributor
            500+ Posts
            • Jul 2014
            • 668
            #18
            Re: 7 POLYGON MIRRORS

            Originally posted by iraklis7302
            ok thank you ,here we are
            Well...If before repairing the laser the defect was not this, you caused problems with the laser yes.


            We have 04 colors, 01 engine and 07 mirrors. Discard the top mirrors as they are for each color.


            Some of the 03 remaining mirrors have some tiny mark, causing the same failure in all colors, or incorrect positioning.


            NEVER repeat this feat. You may have lost the laser.


            I repeat. Just check this if before opening, the defect was not this.
            https://www.copytechnet.com/images/smilies/cool.pngNada como dia após diahttps://www.copytechnet.com/images/smilies/cool.png

              Comment

              • iraklis7302
                Technician

                50+ Posts
                • Jan 2022
                • 54
                #19
                Re: 7 POLYGON MIRRORS

                Originally posted by tulintron
                Well...If before repairing the laser the defect was not this, you caused problems with the laser yes.


                We have 04 colors, 01 engine and 07 mirrors. Discard the top mirrors as they are for each color.


                Some of the 03 remaining mirrors have some tiny mark, causing the same failure in all colors, or incorrect positioning.


                NEVER repeat this feat. You may have lost the laser.


                I repeat. Just check this if before opening, the defect was not this.
                AT FIRST my machine printed well only one side....if i printed 2-sided pages or more,then the problem was faded colors as in my photos.Then i opened and cleaned the mirrors and the problem moved to all pages.not only the first.i will open the laser unit again to see more clearly

                  Comment

                  • iraklis7302
                    Technician

                    50+ Posts
                    • Jan 2022
                    • 54
                    #20
                    Re: 7 POLYGON MIRRORS

                    Originally posted by Toxic
                    Then check developing units , non OEM toners could cause this problem.
                    Did you try remove transfer belt, once i found old jammed paper above transfer belt and it acts like scrapper for transfer belt.

                    Edit:after look again test prints, you have almost identical problem on all colors which is suggesting it is problem with transfer belt.
                    Maybe it was exposed to direct sunlight at some point?
                    here is the answear,its not the belt
                    Attached Files

                      Comment

                      • blackcat4866
                        Master Of The Obvious

                        Site Contributor
                        10,000+ Posts
                        • Jul 2007
                        • 22999
                        #21
                        Re: 7 POLYGON MIRRORS

                        You're losing second transfer ... don't know why. =^..^=
                        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

                          • iraklis7302
                            Technician

                            50+ Posts
                            • Jan 2022
                            • 54
                            #22
                            Re: 7 POLYGON MIRRORS

                            Originally posted by blackcat4866
                            You're losing second transfer ... don't know why. =^..^=
                            ok I have just found the problem.there was HV board.now my printings are great.thank you all for your help

                              Comment

                              • tsbservice
                                Field tech

                                Site Contributor
                                5,000+ Posts
                                • May 2007
                                • 7986
                                #23
                                Re: 7 POLYGON MIRRORS

                                Originally posted by iraklis7302
                                ok I have just found the problem.there was HV board.now my printings are great.thank you all for your help
                                Some pictures will be great asset to your findings.
                                A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                                Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                                  Comment

                                  • iraklis7302
                                    Technician

                                    50+ Posts
                                    • Jan 2022
                                    • 54
                                    #24
                                    Re: 7 POLYGON MIRRORS

                                    Originally posted by tsbservice
                                    Some pictures will be great asset to your findings.
                                    ok here it is
                                    Attached Files

                                      Comment

                                      • tulintron
                                        Senior Tech

                                        Site Contributor
                                        500+ Posts
                                        • Jul 2014
                                        • 668
                                        #25
                                        Re: 7 POLYGON MIRRORS

                                        Originally posted by iraklis7302
                                        ok I have just found the problem.there was HV board.now my printings are great.thank you all for your help
                                        What's scary is how the laser would damage the HV board...

                                        Congrats.
                                        https://www.copytechnet.com/images/smilies/cool.pngNada como dia após diahttps://www.copytechnet.com/images/smilies/cool.png

                                          Comment

                                          • iraklis7302
                                            Technician

                                            50+ Posts
                                            • Jan 2022
                                            • 54
                                            #26
                                            Re: 7 POLYGON MIRRORS

                                            Originally posted by tulintron
                                            What's scary is how the laser would damage the HV board...

                                            Congrats.
                                            yes i dont know why this is happen...im trying to find the problem to my HV board now.i am measuring the voltage regulators,capacitors etc,thanks for your reply

                                              Comment

                                              • copyman
                                                Owner / Technician

                                                Site Contributor
                                                2,500+ Posts
                                                • Sep 2005
                                                • 4645
                                                #27
                                                Re: 7 POLYGON MIRRORS

                                                I have a few hundred "4" series I service and don't think I've ever had to clean the laser unit. I have some in dirty places and never had to open the laser unit.

                                                Even though this whole thing don't make sense and will never really know what the real issue was machine is fixed and all that matters.

                                                  Comment

                                                  • iraklis7302
                                                    Technician

                                                    50+ Posts
                                                    • Jan 2022
                                                    • 54
                                                    #28
                                                    Re: 7 POLYGON MIRRORS

                                                    Originally posted by copyman
                                                    I have a few hundred "4" series I service and don't think I've ever had to clean the laser unit. I have some in dirty places and never had to open the laser unit.

                                                    Even though this whole thing don't make sense and will never really know what the real issue was machine is fixed and all that matters.

                                                      Comment

                                                      • Albonline
                                                        Service Manager

                                                        1,000+ Posts
                                                        • Sep 2008
                                                        • 1144
                                                        #29
                                                        Re: 7 POLYGON MIRRORS

                                                        this really looks like a transfer roller issue. what does the image on the belt look like.

                                                          Comment

                                                          • iraklis7302
                                                            Technician

                                                            50+ Posts
                                                            • Jan 2022
                                                            • 54
                                                            #30
                                                            Re: 7 POLYGON MIRRORS

                                                            Originally posted by Albonline
                                                            this really looks like a transfer roller issue. what does the image on the belt look like.
                                                            hi there and thank you for your reply,i found the problem as i wrote before,there was th HV board

                                                              Comment

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