TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

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  • EDSNOW
    Trusted Tech

    100+ Posts
    • Feb 2009
    • 187
    #1

    [Misc] TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

    I have a customer who is experiencing faint scans when sending to their desktop.
    I was unable to do a toner curve adjustment to see if this relates to the scan issue.
    The firmware is up to date and I will next look at the image components as a possible issue.
    I suspect a good cleaning of the charge rollers might resolve my toner curve adjustment issue.

    I wanted to ask if there was a relationship to the faint scanning and toner curve adjustment.
    The prints that come out to perform the toner curve adjustment don't look too bad...

    I would think the scan back to a computer would be optics related but thought I would ask fellow techs.

    Thanks as always for any input.

    Regards
    Ed
    Tags: adjustment, curve, issue, scan, toner
    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 23008
      #2
      Re: TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

      Samples? =^..^=
      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

        • EDSNOW
          Trusted Tech

          100+ Posts
          • Feb 2009
          • 187
          #3
          Re: TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

          The only sample I have at the moment is enclosed. Not sure if it helps.
          Once I visit the client today I will try and get better samples.
          Regards
          Ed
          Attached Files

            Comment

            • darry1322
              Senior Tech

              Site Contributor
              500+ Posts
              • Oct 2010
              • 817
              #4
              Re: TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

              Originally posted by EDSNOW
              I have a customer who is experiencing faint scans when sending to their desktop.
              I was unable to do a toner curve adjustment to see if this relates to the scan issue.
              The firmware is up to date and I will next look at the image components as a possible issue.
              I suspect a good cleaning of the charge rollers might resolve my toner curve adjustment issue.

              I wanted to ask if there was a relationship to the faint scanning and toner curve adjustment.
              The prints that come out to perform the toner curve adjustment don't look too bad...

              I would think the scan back to a computer would be optics related but thought I would ask fellow techs.

              Thanks as always for any input.

              Regards
              Ed
              Toner curve adjust prints a chart and then scans the chart. If your optics are dirty/hazy the scan will fail.

              Dirty/hazy optics will also cause light/blurry scans/copies while internally printed pages (counter list/toner curve chart/status pages) and pages printed from a PC or fax will print fine.

              Make sure you have properly cleaned your machine from the Doc Feed to the paper cabinet (including optics) and see how things look.

                Comment

                • EDSNOW
                  Trusted Tech

                  100+ Posts
                  • Feb 2009
                  • 187
                  #5
                  Re: TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

                  Appreciate the input.
                  Will investigate suggestions and reply back.
                  Regards
                  Ed

                    Comment

                    • PrintWhisperer
                      Trusted Tech

                      250+ Posts
                      • Feb 2018
                      • 472
                      #6
                      Re: TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

                      Originally posted by EDSNOW
                      The only sample I have at the moment is enclosed. Not sure if it helps.
                      Once I visit the client today I will try and get better samples.
                      Regards
                      Ed
                      Tone Curve unrelated to scan quality.

                      MM412 + p/n 7505000005 for scan calib

                      If dual scan feeder run 2-2 scan and check backside(CIS) vs front(CCD)

                      Check scan rails and mirror sliders.
                      "Being ignorant is not so much a shame, as being unwilling to learn" - Benjamin Franklin

                        Comment

                        • Samanator
                          Service Manager

                          Site Contributor
                          VIP Subscriber
                          500+ Posts
                          • Sep 2017
                          • 579
                          #7
                          Re: TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

                          It also might be helpful to know if the sample scan is running letter R or letter speed.

                            Comment

                            • EDSNOW
                              Trusted Tech

                              100+ Posts
                              • Feb 2009
                              • 187
                              #8
                              Re: TASKalfa 4053 Faint Scan Issue (Scanback to desktop pc)

                              Just to advise that I was able to visit the client.
                              I checked the optics and also drum / developer units and ended up cleaning the charge rollers although there was no real build up.
                              I was then able to do a calibration and toner curve adjustment.
                              I then did some scans of several documents letter. letter R, and legal size with good results.
                              I tracked down one of the end users and asked to use one of his samples that wasn't coming out very well.
                              Using the normal scan without doing any adjustments within the scan to email address the result was OK but not great.
                              When using the same original and adjusting within the address of sender I could darken from normal to darker with an acceptable result.

                              I was advised by Kyocera technical that I can go to Adjustment/Maintenance Send Box and from there adjust the default transmission / stored document density for manual mode.

                              I will give that a try.
                              Thanks for the replies which were greatly appreciated.

                              Regards
                              Ed

                                Comment

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