ES 6520C error CA00

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  • aAandy
    Trusted Tech

    Site Contributor
    250+ Posts
    • Apr 2012
    • 370
    #1

    ES 6520C error CA00

    Hello People

    this machine randomly calls this error during copying/printing but not during power up cycle

    stopped in, cleaned the ITB sensors & checked the plate was moving freely,, ran a bundle of prints and copies no problems, machine performed calibration no problem - left the premises and was called again about an hour later

    print quality is great all round, colour registration is perfect and the client turns the machine off/on to reset fault

    i have read the manual and will perform the stated tasks upon my return, just wondering if anyone has seen this problem on this machine and can point me in the right direction

    thanks in advance

    Andy
    Tags: None
    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 22999
      #2
      Re: ES 6520C error CA00

      Most likely, one or more of your color density patches has diagonal voids through it. If you arrive to the error, simply remove the primary transfer belt and examine the patches. It's usually painfully obvious which patch or patches are not being developed properly.

      It almost always is depleted developer. On 15% fill prints you'll see diagonal voids through the affected color. When you remove the developing unit you'll see the same pattern on the mag roller. Replace the affected developer.

      If your machine has significant copies, let's say 2M+, be sure to check the condition of the mag roller bearings and spacers. We have a couple of these machines in what you might call a production capacity. At 8M it's had it's 4rth black developing unit. And the worn bearing will cause the developer to deplete/dump. =^..^=

      Use this test pattern:
      Attached Files
      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

        • aAandy
          Trusted Tech

          Site Contributor
          250+ Posts
          • Apr 2012
          • 370
          #3
          Re: ES 6520C error CA00

          Originally posted by blackcat4866
          Most likely, one or more of your color density patches has diagonal voids through it. If you arrive to the error, simply remove the primary transfer belt and examine the patches. It's usually painfully obvious which patch or patches are not being developed properly.
          thanks heaps for the pointers & test chart Blackcat, as usual you have saved some stuffing around! no doubt i'll see which developer is depleted by viewing the mag rollers

          machine has done 900k, so i guess i won't have to worry about the bearings just yet

          muchos grassyass

            Comment

            • aAandy
              Trusted Tech

              Site Contributor
              250+ Posts
              • Apr 2012
              • 370
              #4
              Re: ES 6520C error CA00

              got myself into a pickle now hey

              checked as mentioned - no diagonal wavey lines through anything, devs all look good, chevrons (on transfer belt) all look perfect

              performed 05 - 396 (forced image quality control init) and got the following

              Y = O M = 0 C = 2 K = 0 error
              Y = 0 M = 0 C = 0 K = 0

              05-4720 did 3/5ths of 5/8ths of fk-all

              03-(8 & 9) shutter sensor closed n opened, image position aligning sensor LED off/on - this told me the center sensor is not operating normally

              soooo, i removed the transfer belt and drum carriage, then removed the sensor assembly to clean the sensors more thoroughly - when i put it all back together,, i got what appeared to be light shock,,,, all drums,,, (images to follow)

              went back a few days later - light shock remains the same,, fitted replacement transfer belt assy sensor assembly - still getting the same errors as above, still getting CA-00,,, still got what appears to be light shock on all drums

              what the hell did i do? and how do i fixit?

              hope you can help blackcat

              btw,, these are partial skyshots,, but even counter reports show much the same

              ES-6520C.pdf

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22999
                  #5
                  Re: ES 6520C error CA00

                  How interesting!!

                  It takes at least an hour in very bright light to light shock these drums. How long were they out?

                  The patterns on the images appear to be related to the primary transfer belt. What exactly did you replace? The belt, cleaning blade? Did you clean the facing rollers (metal idler rollers)?
                  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

                    • aAandy
                      Trusted Tech

                      Site Contributor
                      250+ Posts
                      • Apr 2012
                      • 370
                      #6
                      Re: ES 6520C error CA00

                      Originally posted by blackcat4866
                      How interesting!!

                      It takes at least an hour in very bright light to light shock these drums. How long were they out?

                      The patterns on the images appear to be related to the primary transfer belt. What exactly did you replace? The belt, cleaning blade? Did you clean the facing rollers (metal idler rollers)?
                      technically interesting indeed - about to lose a client though

                      i had the drums out for 20 mins max, in medium flouro light, with A3 paper over them

                      first time the "light shock" occurred i had replaced nothing, only removed and cleaned the transfer belt sensor assy

                      upon my return days later i replaced only the sensor array which reads the transfer belt registration markings - this sensor array lives in the chassis, just under the right side of the transfer belt assy

                      the transfer belt is cleaning normally - machine is performing run-up calibration successfully

                      seeing the transfer belt is cleaning properly, the shading can only be coming from the drums - i'm taking an entire imaging carriage (drums & devs) and transfer belt assy with me this morning,,, hope that does something

                        Comment

                        • blackcat4866
                          Master Of The Obvious

                          Site Contributor
                          10,000+ Posts
                          • Jul 2007
                          • 22999
                          #7
                          Re: ES 6520C error CA00

                          Good luck. =^..^=
                          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

                            • aAandy
                              Trusted Tech

                              Site Contributor
                              250+ Posts
                              • Apr 2012
                              • 370
                              #8
                              Re: ES 6520C error CA00

                              Originally posted by blackcat4866
                              Good luck. =^..^=
                              even if this fixes the crap image quality, i'll still have the CA-00 to contend with,,, controller board next no doubt?

                                Comment

                                • blackcat4866
                                  Master Of The Obvious

                                  Site Contributor
                                  10,000+ Posts
                                  • Jul 2007
                                  • 22999
                                  #9
                                  Re: ES 6520C error CA00

                                  Originally posted by aAandy
                                  even if this fixes the crap image quality, i'll still have the CA-00 to contend with,,, controller board next no doubt?
                                  On this machine it's called a Logic Board, but yes essentially the same thing. It's about the simplest board on the whole machine to change. Power Off > swap SRAM to new board > install board > power On. The key when dealing with Toshiba (or Konica Minolta for that matter) is to change only one board at a time. The machine will recognize the new board and write the appropriate missing data to it. If you change two or more boards at the same time, the machine will not have that 2 out of 3 boards in agreement, and you'll be screwed. =^..^=
                                  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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