ink problems ryobi 3304H with PCS-F

Discussion in 'Ryobi Printing Presses' started by ABerg3860, Jul 27, 2018.

  1. ABerg3860

    ABerg3860 Member

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    So we recently purchased a used Ryobi 3304H with PCS-F. Several of you have helped with other problems. I feel like I am on the verge of making this a great press for our shop after much cleaning and adjusting. I am still struggling with a few things I hope some one can give me some insight on. I will list them in order of importance.
    1. Ink leaks under the magnetic pads on the ink knife. Replacement blades are near $600 each, will do that as a last resort. I have tried replacing the magnetic pad with magnetic sign material. Apparently the magnetic attraction is not strong enough to keep the ink out. I have found online a magnetic roll that says the strength is 37.5 pound per linear foot, most do not mention their strength. Is that strong enough?
    2. Struggling to get ink adjusted properly to the job. I have run single color and 2 color presses over 30 years, they all had the old fashioned screws and ink knife. Are there any suggestions on how to at least come close to my target densities when starting a job? I know software was originally available for Mac computers only, but even if I bought one, I know there would not be a 3.5 floppy drive. Is there software available for windows PCs? Even if it told me the ink key settings, I could input them manually into the PCS-F.
    3. Also struggling with the fourth unit, running yellow ink. This job is heavy on the yellow, but it is filling in in certain spots. I have double a triple checked roller settings, will probably do it one more time to be sure. Could it just be the ink? I know from the past some inks are just harder to run, reflex blue, for example.
    I know this is long, but I would really like to get this machine up and running. Thank you in advance for any help.
     
  2. turbotom1052

    turbotom1052 Senior Member

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    ill be willing to bet if you searched around enough you could find a floppy drive that interfaces via USB or firewire. As to the issue with the yellow ink I would suggest you try a different manufacturers ink as it sounds like your current yellow may be pigmented a little weak.
     
  3. ABerg3860

    ABerg3860 Member

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    Thanks for the input. Actually I seem to have solved the yellow ink problem with fountain chemistry, running about 15% alcohol. I am, however, still struggling with the water rollers. Others have posted that Crestline or Kompacs are the answer, but our budget does not alow for that at the present time. We recently replaced all the rubber rollers in the press and still struggled particularly with drips on the first unit. Out of desperation I put the old ones back on that unit and drip went away. Now I will have to see what the roller company will do for me.
     
  4. seanryder

    seanryder Member

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    Crestlines or Kompacs are a huge waste on this machine. The original water system with the press is really good if you're willing to take time to maintain and learn it. When replacing the rubber water rollers go with OEM rollers, much more expensive but this will make a HUGE difference, Ink rollers are not so critical.
     
  5. jwe

    jwe Member

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    what do you mean by water drips? From the water pan?
     
  6. turbotom1052

    turbotom1052 Senior Member

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    The addition of that much alcohol is a band aid fix, that will over the long haul will wind up costing you money. That much alcohol will wind up forcing you to run more ink to arrive at the same solid densities. If your running a single circulator tank to feed fountain solution to all units, then your increased ink usage will be multiplied by as many units as is on your press. Then there is the cost of the alcohol in them high concentrations. You will also get less life out of your rubber rollers as the alcohol will have the effect of drying your rollers out prematurely.
    You should reconsider your band aid fix and SOLVE your problem where it begins. Im not certain that a more strongly pigmented yellow ink will solve your problem as im not there to see the entire picture, but I think it would be a good place to start. If your company can not afford to hire a full time person with the required skills to figure this stuff out then I would suggest you at least bring on a pressroom consultant for a few weeks to help.
     
  7. ABerg3860

    ABerg3860 Member

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    Thanks again for everybody's input. I have begun to get a handle on it. As far as the water drips, I think I have traced them all done. It is easy to overload the trays to begin with, then I also found out that if I am letting too much water through the system by not allowing enough roller pressure, it will drip. Yes, I have read the manual, as well as others hints on setting the rollers, but with so many things I have learned over the years, the manual is often only a starting point. Also, after putting all new rollers (not oem) I could not get one unit to stop dripping no matter what. Out of desperation, I put the old set on, reset the pressures, and all was well.
    One other bit of input would be appreciated. I have gotten conflicting answers as to the importance of the chiller operating. Ours does not. Water gets up to 85 degrees. I tried putting blocks of ice in containers to cool it down to see if it made any difference, but the last time I printed it was only one color. One way or another, we will try to get it fixed.
     
  8. seanryder

    seanryder Member

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    Chilling the fountain solution is critical to the Ryobimatic dampening system. Should be @ 51degrees F. This in turn will affect the conductivity as well. High quality process inks and proper chiller function will give great results in quality.
     
  9. turbotom1052

    turbotom1052 Senior Member

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    chilled fountain solution is a MUST!!!
     

  10. ABerg3860

    ABerg3860 Member

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    Thanks for your input. Actually, I have made a lot of progress with this press. Of all the problems I have had, the most frustrating has been the drips. Someone suggested removing the oscillating roller from the water form roller. The theory being that it was trapping excess water from returning to the system. I tried it and it worked, thank God for that. Thanks for everybody┬┤s input.
     
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