bizhub c384e color question

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  • n25an
    Service Manager

    Site Contributor
    1,000+ Posts
    • Jul 2008
    • 1030
    #1

    bizhub c384e color question

    ok... got to a client...
    color is too red...
    after drama... cleaned the idc sensor...
    got rid of the redness...
    ran the stabilization settings...

    but customer said it still did not print things right...

    I am checking if there are any more detail settings and steps to calibrate the colors...
    image looks ok to me... but customer said its off...
    no bluriness...
    just want to calibrate colors...

    spoke with mgr...
    we are going to change the belt and the drums...

    quick side question... whats the best step to clean the transfer belt... will rubbing alcohol work... or is there something else recommended... palm prints on the belt...

    as always any help is appreciated...
    Sad To Say I Don't Have a Life
    I do this stuff on the weekends too
    Tags: belt, color calibration, color issues, idc sensor, redness
    • n25an
      Service Manager

      Site Contributor
      1,000+ Posts
      • Jul 2008
      • 1030
      #2
      Re: bizhub c384e color question

      sorry bizhub c284e

      need sleep...
      Sad To Say I Don't Have a Life
      I do this stuff on the weekends too

        Comment

        • copier tech
          Field Supervisor

          5,000+ Posts
          • Jan 2014
          • 8131
          #3
          Re: bizhub c384e color question

          Most likely it is their screen that needs calibrating! see this a lot customer not getting printed image the same as whats on their PC screen.

          HOWEVER if you are not using genuine toner/parts you WILL get this issue too.

          No need to clean the belt this won't help.
          Let us eat, drink, and be merry, because tomorrow we may die!

          For all your firmware & service manual needs please visit us at:

          www.copierfirmware.co.uk - www.printerfirmware.co.uk
          ​

            Comment

            • habik
              Service Manager

              Site Contributor
              1,000+ Posts
              • Apr 2010
              • 2013
              #4
              Re: bizhub c384e color question

              Try print head skew reset. Then Stabilisation. Gradation. After adjustment ends and you are in main service mode menu press start. (This should be done everytime you do calibrations anyway.)

              Now try Image Background and Stabilisation reset and run fresh Stabilisation and Gradation.

              What's the life of drums and ITB and Devs?


              Sent from my Mi A1 using Tapatalk
              .OK Google! ... will I need Berrocca this morning?
              Firmwares HERE

                Comment

                • mo0651
                  Service Manager

                  1,000+ Posts
                  • Apr 2009
                  • 1054
                  #5
                  Re: bizhub c384e color question

                  Is it on all print jobs?? What if job is sent from another computer? Just start happening? What is the PM life of consumables? Have you ran the Gradation 3x??
                  You can adjust the HUE's and Brightness in the Driver, BUT only after answering other questions.

                    Comment

                    • allan
                      RTFM!!

                      5,000+ Posts
                      • Apr 2010
                      • 5462
                      #6
                      Re: bizhub c384e color question

                      Will need a fiery then calibration then more complaints...
                      Fixed a call by adjusting a screen when the guy went out of his office for a bit.
                      Thanked me for fixing the printer!

                      Do as per habik.
                      Whatever

                        Comment

                        • SalesServiceGuy
                          Field Supervisor

                          Site Contributor
                          5,000+ Posts
                          • Dec 2009
                          • 8146
                          #7
                          Re: bizhub c384e color question

                          What app are they printing from? If Adobe PDF, try Advanced, Color Management, "Let Printer Determine colors"

                          Does your copier print an internal test chart. If so, print that to determine the copier's baseline for color quality.

                            Comment

                            • allan
                              RTFM!!

                              5,000+ Posts
                              • Apr 2010
                              • 5462
                              #8
                              Re: bizhub c384e color question

                              On mac the difference between RGBs and CMYK is night and day.
                              Whatever

                                Comment

                                • D_L_P
                                  Self Employed

                                  1,000+ Posts
                                  • Oct 2009
                                  • 1196
                                  #9
                                  Re: bizhub c384e color question

                                  For a hand print on tx belt I use a very clean new white rag. Maybe a spray of water on the rag worst case. Just keep rubbing with a dry rag, then run 40 or 50 copies. Seems any cleaner will leave permanent blotches on tx belt. I usex to try alcohol with limited success. Dry rag and many, many copies has worked the best for me.

                                    Comment

                                    • antonisp
                                      Junior Member

                                      Site Contributor
                                      • Jun 2016
                                      • 8
                                      #10
                                      Re: bizhub c384e color question

                                      Windows or Mac environment?
                                      file type (raster, vector) that your client "see wrong", RGB or CMYK, if CMYK what profile it was worked with (swop, ISO, fogra etc)?
                                      i believe there's not much you can do from the copier side (guessing that you have done all the cleaning, graduating adjustments etc), other than installing a fiery
                                      People will always ask for more without having the slightest clue about color reproduction...you can't get on details about profiling or how environment parameters such as humidity can affect their prints.
                                      You can't have a basic MFP with the demand of being cheap and accurate...
                                      In my field I have installed used Fieries on one c360 and one c280, after the clients demanded for more accurate and consistent color, I run monthly calibration with ES-1000, I get paid the visit and everyone is happy...

                                      I may sound more like a psychotherapist, that a technician, but I have seen that whining countless times.

                                        Comment

                                        • blackcat4866
                                          Master Of The Obvious

                                          Site Contributor
                                          10,000+ Posts
                                          • Jul 2007
                                          • 22999
                                          #11
                                          Re: bizhub c384e color question

                                          The first thing to do is find out exactly which color isn't right on exactly which electronic file, and get a copy of the electronic file.

                                          I've had this conversation numerous times. The customer says: "This is not our color!!" So you say to everybody in the room: "Can I get a business card from everybody?" Then get a few samples of the letterhead and envelopes. Line up all your samples on the table. "So I've got 10 samples, and 7 different colors. Which is your color?" Eventually somebody produces an official electronic file with the official color. Take ColorPic to determine the exact CMYK/RGB color.

                                          Now print the official electronic doc. Take your print and compare it to your Pantone Color Bridge. From that you can compare the RGB to the CMYK sample. Remember: displays are additive color RGB, prints are subtractive color CMYK. And they look very different. And professional press printing with ink has a much larger color gamut, and can produce many more colors than a CMYK printer. It's the bold, bright, neon colors that are furthest outside the printer's color gamut.

                                          Once you know the exact CMYK/RGB color you can produce a Publisher document with the customer's exact color, and print it to prove that the printer is fully capable of producing the color (when the exact color is present in the electronic document).

                                          Unless you've got a fiery and your monitor is properly calibrated you've got no chance of making an RGB monitor look like a CMYK print. =^..^=
                                          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

                                            • n25an
                                              Service Manager

                                              Site Contributor
                                              1,000+ Posts
                                              • Jul 2008
                                              • 1030
                                              #12
                                              Re: bizhub c384e color question

                                              Thanks for the calibration information and all the other suggestions...

                                              Where I work ... Field techs are not allowed to touch customers computers fireable offense...

                                              What I want to do is put mkit in, calibrate the machine... To the best of my ability and when customer complains...

                                              Kick it upstairs to mgr...

                                              He will not let our computer guy touch it... It will be billable...

                                              He will tell him... Machine can't do this ...

                                              To which the customer will say it was ok before...

                                              If it were up to me...

                                              I would calibrate to best of my ability...
                                              Jump on customer computer system...
                                              Then compare one image printed from all computers
                                              Check older images... That were good and newer images that were bad
                                              Then explain that at this point... The copier is calibrated... And next step is to put a mkit in... And calibrate again...
                                              We put one in...
                                              Image still bad...
                                              Now its no longer an issue with copier its colors...
                                              Now its color sampling time...
                                              This is an issue for their it person...
                                              Why... The older machine gets the more out of spec the older it gets...

                                              And since we are working with two different color sets... Color matching will have to be done...

                                              But since I can't do that all I can do is put mkit in, calibrate the machine and recommend customer to mgr not if but when they complain...

                                              That's what's ahead..,

                                              I hate these handcuffs...

                                              I realized this after listening to all suggestions...

                                              Thanks again
                                              Sad To Say I Don't Have a Life
                                              I do this stuff on the weekends too

                                                Comment

                                                • copier tech
                                                  Field Supervisor

                                                  5,000+ Posts
                                                  • Jan 2014
                                                  • 8131
                                                  #13
                                                  Re: bizhub c384e color question

                                                  Before we get too deep have we even determined if this C384e has a fiery!?
                                                  Let us eat, drink, and be merry, because tomorrow we may die!

                                                  For all your firmware & service manual needs please visit us at:

                                                  www.copierfirmware.co.uk - www.printerfirmware.co.uk
                                                  ​

                                                    Comment

                                                    • Synthohol
                                                      Certified Konica Expert

                                                      Site Contributor
                                                      5,000+ Posts
                                                      • Mar 2016
                                                      • 5806
                                                      #14
                                                      Re: bizhub c384e color question

                                                      just for clarity, is it a c284 or c364? there is no c384 (at least in the US)
                                                      We know a thing or two because we've seen a thing or two.
                                                      The medication helps though...

                                                        Comment

                                                        • n25an
                                                          Service Manager

                                                          Site Contributor
                                                          1,000+ Posts
                                                          • Jul 2008
                                                          • 1030
                                                          #15
                                                          Re: bizhub c384e color question

                                                          its a c284e no fiery
                                                          Sad To Say I Don't Have a Life
                                                          I do this stuff on the weekends too

                                                            Comment

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