Print quality issues and repairs Xerox Workcentre 5735, 5745, 5755

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  • เผยแพร่เมื่อ 5 ก.ย. 2024

ความคิดเห็น • 145

  • @usmankhalid9425
    @usmankhalid9425 4 ปีที่แล้ว +1

    hello sir i like your video

  • @kkrishnan1081
    @kkrishnan1081 6 ปีที่แล้ว +1

    Sir your video is very helpful I am using 5755 workcentre ros

    • @kkrishnan1081
      @kkrishnan1081 6 ปีที่แล้ว

      Workcentre 5755 Ros coming white copy please help me

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      K Krishnan I’m not sure what “Ros” means. Can you clarify?

  • @fergouguim
    @fergouguim 6 ปีที่แล้ว +1

    Thank u very match

  • @RajKumar-of3rn
    @RajKumar-of3rn 6 ปีที่แล้ว

    very nice Sir

  • @maheshdhanjidodiya3427
    @maheshdhanjidodiya3427 4 ปีที่แล้ว

    Xerox 5755 background print coming black problem.

  • @dpsolution785
    @dpsolution785 4 ปีที่แล้ว

    DEAR SIR PLEASE ADVISE SOLUTION XEROX 5755 FOR ERROR CODE 09-060 HVPS FAILURE
    OTHER PROBLEM IS WHEN MACHINE ON DISPLAY GOING RED , BLUE ,GREEN

  • @santoshphadtare6088
    @santoshphadtare6088 6 ปีที่แล้ว

    My Xerox 5755 the paper which comes out contains lots of crease.
    Thanks in advance.

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      santosh phadtare it sounds like the fuser. We have this part, or you can buy the components to rebuild yours from partsdrop.com.

  • @nkg108
    @nkg108 6 หลายเดือนก่อน

    Sir we have Xerox 7545 Printer. its prints Ghosty prints. when i Color calibrating it. It Unable to complete as it printing Before calibrate page fine But unable to print After Calibrating Page instead it orints error pages why so

    • @aaronbcollins2
      @aaronbcollins2  6 หลายเดือนก่อน

      This could be one or more defective toner cartridges. Are you able to swap out the cartridges to see if that resolves the issue?

  • @nkg108
    @nkg108 6 หลายเดือนก่อน

    Helo Sir I have a xerox wc 7545 .pro. is color mis registration .I print any image color is diff 1mm cyan and magenda and yellow. only b/w print is ok but color print color is over lapping. I am try to calibration option but .not set . how to set color mis registration.Thanks

    • @aaronbcollins2
      @aaronbcollins2  6 หลายเดือนก่อน

      That sounds like defective print cartridges. Do you have other print cartridges that you could try?

  • @intrawerxinc8020
    @intrawerxinc8020 5 ปีที่แล้ว

    Your videos are very informative, thank you!. Will the process work same for wc7435 to resolve light copies problem?

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      As far as I know Xerox introduced the flash drive method with the 75 series. The 74 series is more involved, and involves downloading the new firmware to a laptop and then plugging that laptop into the printer and using Xerox's firmware upgrade software.

  • @gamborikhangambori8597
    @gamborikhangambori8597 3 ปีที่แล้ว

    Do a video on no print what causeses

    • @aaronbcollins2
      @aaronbcollins2  3 ปีที่แล้ว

      Well, several things could cause that. Can you describe the issue a little more? Do you get any kind of error code?

  • @ranjitsahoo6990
    @ranjitsahoo6990 4 ปีที่แล้ว

    xerox5230 copier problem is this when paper is coming from machin one top side corner is band plz tell what is the problem can solve this

    • @aaronbcollins2
      @aaronbcollins2  4 ปีที่แล้ว

      Does the blank spot move from one sheet to the next or is it stationary?

  • @mumtazmahmood971
    @mumtazmahmood971 3 ปีที่แล้ว

    Sir, i have Xerox 5735 and i am getting message copying and printing is unavailable

    • @aaronbcollins2
      @aaronbcollins2  3 ปีที่แล้ว

      The machine should display a four digit error code. Hold down the Machine Status button if you don’t see it. We need that code to understand the problem.

  • @dreamcraftshillong1417
    @dreamcraftshillong1417 6 ปีที่แล้ว

    thank you very much sir, your videos is very helpful..can you please help and explain to us about xerox workforce 7525, there is always a yellow stain while printing on heavyweight paper.

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      khasi hill Have you set the tray for heavy paper? If that fails, it might be time to change the yellow drum.

    • @dreamcraftshillong1417
      @dreamcraftshillong1417 6 ปีที่แล้ว

      Thank you very much for your valuable advise sir ,changed the drum and the machine is working fine now. and thank you once again for your timely response.

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      No problem! I am glad it worked out. Don't forget to subscribe!

    • @dreamcraftshillong1417
      @dreamcraftshillong1417 6 ปีที่แล้ว

      sure, done that, already subscribe!

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      khasi hill great! Thanks!

  • @devsharma2965
    @devsharma2965 6 ปีที่แล้ว

    dear sir please tell me xerox 5735 left side door paper jam reguler problum how to solve this

  • @emadmohamed6767
    @emadmohamed6767 5 ปีที่แล้ว

    shadw in the picture when printing or shooting in a Xerox Work Center copier

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      How old is the drum / Xerographic unit?

  • @sohaibbutt4077
    @sohaibbutt4077 6 ปีที่แล้ว

    sir i have problem my xerox 5755 , scanner need service problem , plz tell me some about this

  • @markmarci497
    @markmarci497 5 ปีที่แล้ว

    I have a xerox workcentre 7125 with registration issue. top to bottom is dead on it is the side to side. Went into service rep login did all registration procedures. I know enough to be dangerous but not to fix my problem please help anyone?

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Mark Marci does the problem happen when you put the original directly on the glass or just when you use the automatic document feeder?

  • @sachdevagifts7321
    @sachdevagifts7321 6 ปีที่แล้ว

    doing with xerox 5775... print quality gud....but when we use ADF it gives black background....owise print from plate or network is all gud....cn u suggest the remedy pls

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Sachdeva Gifts how are the hinges on the back of the ADF? There are little plastic feet On the very left side of the scan area when you lift up the ADF. These should meet the glass when the ADF is closed. There is a Hex screw to adjust the height of the ADF on the left hinge behind the ADF.

  • @koentheuwissen9734
    @koentheuwissen9734 5 ปีที่แล้ว

    i have a problem with a XEROX WORKCENTRE 6015
    Colors are printing fine only black print is very light grey / toner replaced problem stays

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Are you using genuine Xerox toner or generic?

    • @koentheuwissen9734
      @koentheuwissen9734 5 ปีที่แล้ว

      @@aaronbcollins2 Its not the original from xerox ; can I clean the point were toner is going in the printer

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Koen Theuwissen I’m not sure that will help. Did you recently replace the black ink? Do you have the old cartridge? Could you try swapping that back in?

    • @koentheuwissen9734
      @koentheuwissen9734 5 ปีที่แล้ว

      @@aaronbcollins2 Yes I recently replaced the black toner ; I don't have the original one ; I tried another new one and the problem stays

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Koen Theuwissen I really believe that these generic cartridges are just acting differently than genuine cartridges would.

  • @Skyfall_83
    @Skyfall_83 5 ปีที่แล้ว

    i have xerox 5735 machine and tray 3 is lifting but at the time of printing it says open tray 3. any solution

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Niraj Peshwe it is probably one of two switches. One switch tells the machine how much paper is in the tray, the other whether the tray is closed. Look around for these two and see if they are bent.

  • @omer7885
    @omer7885 6 ปีที่แล้ว

    hi sir . i have xerox workcenter7225 model.when i scanning .it comes greenish colour how to solve this .please explain.thanking you

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Could you snap a photo of the original and the greenish scan and send them to aaronbcollins@gmail.com?

  • @kanisettyvenkat939
    @kanisettyvenkat939 5 ปีที่แล้ว

    I have 5855 workcenter papaerjam in drum unit area what is problem pls video

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Are you unable to clear the jam?

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      kanisetty venkat have you tried cleaning the Cortron wiring assembly?

  • @pamelamoraes3885
    @pamelamoraes3885 6 ปีที่แล้ว

    hello, I have a xerox wc 5755 I'm having print quality problems, when I print a black square one of the four corners of it does not close the printout is out of print.
    Did you already have this problem?

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Pamela moraes can you take a photo and send it to aaronbcollins@gmail.com? This will help me understand the problem.

  • @Skyfall_83
    @Skyfall_83 5 ปีที่แล้ว

    plz tell me how to change gear behind the Fuser which is jamming my paper

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Niraj Peshwe that’s actually a pretty involved job. We don’t have a video over it.

  • @anirakestrella5206
    @anirakestrella5206 4 ปีที่แล้ว

    Mr.Richard Collins how I can do the same but on Xerox WorkCentre 5875? (Image quality adjustment)

    • @aaronbcollins2
      @aaronbcollins2  4 ปีที่แล้ว

      anirak estrella it should be mostly the same. The 5875 is just the newer version of the machine in the video.

  • @SiddharthSingh-sp5ix
    @SiddharthSingh-sp5ix 5 ปีที่แล้ว

    In my xerox 5755 when i switch on the machine after 5 minutes screen look like rainbow what can i do...plz reply and also tell the major prmbl of this xerox 5755 machine

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Siddharth Singh like a rainbow? Multicolored? Or does it flash on and off?

  • @jaiHind-ux3ng
    @jaiHind-ux3ng 5 ปีที่แล้ว

    Sir can u tell me why my Xerox 5845 machine giving full black copy in one side when two sided option is given

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      jai Hind I believe that model actually has two scanners it uses when you do double sided copies. It has a single pass document feeder (ADF). Does it do the same when you print to it from a computer or from the flash drive? It is probably the scanner in the document feeder rather than the one under the glass.

    • @jaiHind-ux3ng
      @jaiHind-ux3ng 5 ปีที่แล้ว

      Sir my my ADF is not functioning but as I print it manual the same problem occur not for every copy but some time it gives continuous black print

  • @donniegrande9186
    @donniegrande9186 7 ปีที่แล้ว

    I run Igens 4 and 5 million plus clicks a month but it always goes down. I do replace and maintain the grids, wirings, fuser rolls, and belts etc. Is it the brand and I used to run Indigo but I'm not having similar problems it's only quality issues any thoughts?? thanks.

    • @Akziis
      @Akziis 7 ปีที่แล้ว

      Jayson are you using own drums?

    • @Akziis
      @Akziis 7 ปีที่แล้ว

      Oem

  • @anirakestrella5206
    @anirakestrella5206 6 ปีที่แล้ว

    I have a WorkCentre 5775 and it seems the cylinder gets like dusty by toner son when I make copies a dark shadows comes along, I try to clean the cylinder but is there a part that I need to clean or a bottle that needs to be empty? I empty the waste bottle already but inside the of copier it that exists something else that needs to be either empty or clean? Thank you

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Sounds like you have a bad drum . Try replacing the drum cartridge

    • @anirakestrella5206
      @anirakestrella5206 6 ปีที่แล้ว

      @@aaronbcollins2 Thank you..I will do that not sooner but I will do that

    • @anirakestrella5206
      @anirakestrella5206 6 ปีที่แล้ว

      @@aaronbcollins2 I have a question what can it be after sending error of phase incomplete..I modify the code to value 4 on dc-03 and 18..start printing without a problem but next day on display touch screen went black...I need to change the memory battery? Thank you

    • @anirakestrella5206
      @anirakestrella5206 6 ปีที่แล้ว

      Is it the same memory battery WorkCentre 5765 and 5775? so I can replace it? Again Thank you

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      anirak estrella it should be the same battery, yes. It sounds like it needs to be replaced.

  • @vijayalakshmis4734
    @vijayalakshmis4734 6 ปีที่แล้ว

    printer prints blank pages in xerox 5755. how to clear that problem ? can you please upload a video for it? please...

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Vijayalakshmi S are all the pages blank or does it just print blank pages sometimes? Check the cortron wires under the drum (imaging unit) and see if they are broken.

    • @vijayalakshmis4734
      @vijayalakshmis4734 6 ปีที่แล้ว

      Thank you!

    • @vijayalakshmis4734
      @vijayalakshmis4734 6 ปีที่แล้ว

      And Can you please explain how to increase the darkness of the print by default?
      We know how to increase the darkness using image quality option. Can we set it as increased be default?

  • @aamirshowkath8139
    @aamirshowkath8139 5 ปีที่แล้ว

    Copying and printing are unavailable
    Displaying on screen

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      aamir showkath does the machine give you a fault code?

  • @amitchawla6378
    @amitchawla6378 7 ปีที่แล้ว

    hello sir I have Xerox work center 5755 by mistake I reboot touch calibration and now this time touch not working..plz tell me how to solve this problem

    • @aaronbcollins2
      @aaronbcollins2  7 ปีที่แล้ว

      I am not sure I understand the problem. It sounds like it might just need to be reset. Turn the machine off and unplug it for 5 minutes, then plug it back in and power it back on.

    • @muhammadzunair1571
      @muhammadzunair1571 6 ปีที่แล้ว

      Touch and bord change clear fult

  • @lenawilloughby8827
    @lenawilloughby8827 6 ปีที่แล้ว

    I have a Xerox 5135 that is having print quality issues. A mark is being made across almost all sheets that are printed, and splotches of ink sometimes occur, mostly in or near this path. I have done some research and believe that it may be a roller issue. Is that something you can help with or maybe something that you can help me diagnose?

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Lena Willoughby that really sounds like you need a new drum cartridge. We have these in stock. Where are you located?

    • @lenawilloughby8827
      @lenawilloughby8827 6 ปีที่แล้ว

      aaronbcollins2 I am located in Ohio. Does the 5135 have a drum? I did some research and some threads suggested that it might be a roller problem. Do you sell parts for this model?

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      The 5135 does have a drum. We have parts for it. It is a light / blank streak or a dark mark on the paper?

    • @lenawilloughby8827
      @lenawilloughby8827 6 ปีที่แล้ว

      aaronbcollins2 It is a smudge on the paper, almost every sheet, that is pretty light. It is sometimes accompanied by dark blotches or “ink spitting” onto the paper in that same general area. I can provide a photo if you like...

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Lena Willoughby could you take a picture of a page with the problem and send it to aaronbcollins@gmail.com? I want to make sure I understand the problem.

  • @MohsinAliStudioofficial
    @MohsinAliStudioofficial 4 ปีที่แล้ว

    Dear Sir, i have a same problem in xerox 5845 how to solve it ?

    • @aaronbcollins2
      @aaronbcollins2  4 ปีที่แล้ว

      Shan Ali it should be similar to the machine in the video.

  • @tayoalokolaro1870
    @tayoalokolaro1870 5 ปีที่แล้ว

    Hi do you know about Xerox DC8002 machine faulty code/

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      tayo alokolaro what is the fault code?

  • @SiddharthSingh-sp5ix
    @SiddharthSingh-sp5ix 5 ปีที่แล้ว

    Is there is any type of software prmbl in xerox 5755

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Siddharth Singh I’m not sure what you mean by prmbl. Please clarify.

  • @bacardilove1981
    @bacardilove1981 5 ปีที่แล้ว

    hello sir i see that you have a lot of xerox printers, i have the workcentre 425dc, when i push the green button make a copy, stops and in the screen said problem with the printer machine, any help????? i see with a light that the black sponge rolls normal but i cant see somethink else

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Anthimos Aggelidis What is the error code that you are getting? Press machine status - faults - active messages or fault history. There will be a five digit code.

    • @bacardilove1981
      @bacardilove1981 5 ปีที่แล้ว

      @@aaronbcollins2 hello and thanks a lot for your time!!! The codes is u3-3 u2-72 and somethink else. I dont remember now but when i press the copy button ,scan the paper but when its time to take the papper and print it stop and right in the screen problem with the printer machine!!!! I have put a cable to hold the dublex port open and i light a maglight and see that the black drum.that ia more soft rolls but i cant see the other one!! Is there a chance to be a problem with the paper feeder???

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Anthimos Aggelidis u3 sounds like a fuser code. When you turn the machine on, do you see a light coming on in the fuser?
      I had to look up how to clear the u2 code. According to: www.fixya.com/support/t15195851-xerox_wc_5020_error_cod_u2, “Clear key - Interrupt key - "0" key - Interrupt key - 16 - Start key - Start key. The unit should reset.”

    • @bacardilove1981
      @bacardilove1981 5 ปีที่แล้ว

      @@aaronbcollins2 hello again i dont see any light from the fuser!!! the copier has over 200.000 copies there is a repair kit for this copies?

    • @bacardilove1981
      @bacardilove1981 5 ปีที่แล้ว

      @@aaronbcollins2 th-cam.com/video/TmKU7e61oxQ/w-d-xo.html

  • @kalpeshranderi1926
    @kalpeshranderi1926 6 ปีที่แล้ว

    Scanner has stop.... In 5755 xerox.. Pls tell

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      KALPESH RANDERI are you getting an error message or code?

    • @kalpeshranderi1926
      @kalpeshranderi1926 5 ปีที่แล้ว

      No any messages... Then after I clean my 5755 ram after it work.....

    • @kalpeshranderi1926
      @kalpeshranderi1926 5 ปีที่แล้ว

      I want to know what the problem is.. Y this problem occurs again and again... Another thing is that I had 🔌 out the ADf wire from the machine 5755

  • @jagadishbhamare3754
    @jagadishbhamare3754 5 ปีที่แล้ว

    only disply xerox can not work

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      JAGADISH BHAMARE I am not sure I understand. Are you getting a specific error message?

  • @krishkk6691
    @krishkk6691 5 ปีที่แล้ว

    sir work center 5775 error code 19-409 please help

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      That isn't one we've seen before. It sounds like some kind of trouble with the image processor board, which is basically the small PC board that is built into these printers. It will have memory sticks and a hard drive in it. I would make sure the memory is seated well and all the cables are plugged in well.

  • @alcowboy2154
    @alcowboy2154 7 ปีที่แล้ว

    Any thing about 7750 or 7760?

    • @aaronbcollins2
      @aaronbcollins2  7 ปีที่แล้ว

      Al Willis I'm afraid we don't see many of those machines. We don't have any videos for them.

  • @vyakarantasgaonkar3464
    @vyakarantasgaonkar3464 5 ปีที่แล้ว

    Pwb memory what

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      I am not sure I understand. Please re-phrase this..

  • @ankithande6699
    @ankithande6699 6 ปีที่แล้ว

    Sir print print text pattern are not show

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Ankit Hande So you are getting blank pages? No printing at all?

    • @ankithande6699
      @ankithande6699 6 ปีที่แล้ว

      im try this process but printing quality issu not slove

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Ankit Hande are you getting any text on the page at all? Is the paper coming out completely blank?

    • @ankithande6699
      @ankithande6699 6 ปีที่แล้ว

      text are fade
      in copy

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      Ankit Hande okay. How old is the drum cartridge?

  • @princemuzaffarali5237
    @princemuzaffarali5237 5 ปีที่แล้ว

    I need rc machine this

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Prince Muzaffar Ali RC?

    • @princemuzaffarali5237
      @princemuzaffarali5237 5 ปีที่แล้ว

      @@aaronbcollins2 xerox machine need 40 copy speed....

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Prince Muzaffar Ali okay. Xerox machines generally tell you the copy speed with the last two digits of the model number. The 5335 makes 35 copies per minute, for example.

    • @princemuzaffarali5237
      @princemuzaffarali5237 5 ปีที่แล้ว

      5335 xerox..

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Prince Muzaffar Ali where are you located?

  • @princemuzaffarali5237
    @princemuzaffarali5237 5 ปีที่แล้ว

    India kashmir..

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Prince Muzaffar Ali okay. It is almost certainly going to be easier and less expensive to source a printer locally. Shipping from the US to India is very expensive. When you are deciding which machine to get, make sure to investigate whether service and parts are easily obtained locally before you make a purchase. All printers eventually break and require maintenance. You don’t want to be stuck with a machine that you can’t get serviced at a reasonable cost.

    • @princemuzaffarali5237
      @princemuzaffarali5237 5 ปีที่แล้ว

      @@aaronbcollins2 i m ready to buy wht shud i do

    • @aaronbcollins2
      @aaronbcollins2  5 ปีที่แล้ว

      Prince Muzaffar Ali you’d probably do best going through Xerox in India. That way you could avoid the shipping charges from the US.

  • @RAJKUMAR-cs6qi
    @RAJKUMAR-cs6qi 6 ปีที่แล้ว

    Helo Sir I have a xerox wc 7525 .pro. is color mis registration .I print any image color is diff 1mm cyan and magenda and yellow. only b/w print is ok but color print color is over lapping. I am try to calibration option but .not set . how to set color mis registration.Thanks

    • @nkg108
      @nkg108 6 หลายเดือนก่อน

      Same poblem i am facing

  • @devsharma2965
    @devsharma2965 6 ปีที่แล้ว

    dear sir please tell me xerox 5735 leftside paper jam reguler problum how to solve this

    • @aaronbcollins2
      @aaronbcollins2  6 ปีที่แล้ว

      I'd have to know more detail. It could be a problem with worn or dirty rollers. Have you tried cleaning the rollers you can see?

  • @ayeshaprinters2073
    @ayeshaprinters2073 6 ปีที่แล้ว

    Sir i have xerox workcentre 5745 in display only showing configration Error and display not allow me to operate how can i fix this plz tell me sir