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Kyocera M5521 cdw printing issue

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brucine Posted messages 24753 Registration date   Status Member Last intervention   -

Hello,

I have a Kyocera M5521 cdw laser printer.

I had marks on the prints and took everything apart to clean the drum and transfer roller. It was working properly again.

Then I had to change the toners and now I have a messy clear print.

I can't see where it could be coming from. I'm attaching the test page that shows white clouds https://i.postimg.cc/WzYbDvn5/Screenshot-2023-01-08-at-12-20-22.png.


1 answer

  1.
    bazfile Posted messages 58487 Registration date   Status Moderator Last intervention   20 266
     

    Hello.

    You need to clean the printer (print head, etc.) and don't use just any product; to clean a printer, you should use isopropyl alcohol (IPA), which you can find on Amazon. This alcohol evaporates very quickly, thus preventing the kind of dilution problems you're experiencing.

    bazfile
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    1. brucine Posted messages 24753 Registration date   Status Member Last intervention   4 154
       

      Hello,

      Isopropyl alcohol is probably a better solvent for organic compounds than ethanol, but it is less volatile (boiling point around 82°C compared to 78°C) and therefore evaporates less quickly.

      Commercial 90% (or 95%) alcohol and especially industrial ethanol have, due to their oxidizing power, a great capacity to capture impurities (probably including organic compounds) and therefore to have a certain viscosity themselves.

      Moreover, it is potentially dangerous in an industrial environment (I've seen small volumes explode when placed in front of a sunny window) and may be more expensive, I'm not sure.

      Therefore, it is not volatility that should make isopropyl alcohol preferable; at the individual level, nothing prevents us from using pharmaceutical-grade ethanol as long as we can find it because it has no medical use and has therefore become taxed as beverage alcohol, which makes it prohibitive.

       

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