RYOBI 3200PFA quality problem.

Discussion in '1-Color and 2-Color Offset Presses' started by OkiTech, May 24, 2008.

  1. OkiTech

    OkiTech Senior Member

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    Hi everyone! If there is a professional who knows how to run this press please please please- a few words of advise. I am a new printer with 10 years large copiers service experience so i can read, understand ( I think :) ) and follow manuals on all the adjustments procedures... Press has all new soft rubber rollers, nips are within range, AB Dick pink fount. solution, Spinks Acrylic ink ( as per POPKIN and CO tech that's only ink that will run well on this press). I cannot get density right especially on sides (run 11x17 20lb exclusively). Looks like too much water but any less will cause toning. Poly or Metal plates make no difference. Best case - middle gets nice and dense color but can't get sides printed right no matter how much I open the ink keys... Please any help would be greatly appreciated. Thank you. Roman.
     
  2. 5150pressman

    5150pressman Senior Member

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    What kind of dampening system is on this press?
    I don't think the press is limited to that type of fountain solution or inks.
     
  3. OkiTech

    OkiTech Senior Member

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    RYOBI 3200 PFA must it be so complicated?

    It's, I believe, called intagrated- hard roller in a pan and soft swings between ink oscilator and fount roller. There is a fount roller to ductor adjustment on both sides and frequency adjustment lever. Tech didn't actually said that press is limited to strictly acrylic - just said that what works best. I had tryed to run some oil based ink - it was total failure, plate was flooding with ink regardless how much ink is in the system and how much water I supply. Fact that I had touched press less than year ago first time in my life and that had a Kompac and this one I had for Half a year - put over 2 mil imp. so far. Biggest problem - lots of my jobs have a border about 1/8 thick and as paper pass, top and bottom lines look light where leading and trail look ok. Also some ink accumulates on the leading edge of the blanket and at some point goes on the image so I have to stop and wipe it off. If there are any solid spots they don't look dense even if I decrease water supply and plate gets all toned up they still not solid as they should be. Funniest thing that it looks like there are 2 spring load adjustments and 1 lever and I am lost in it like it's a jungle :) . I had spent countless hours and boxes of paper just experimenting, never thought that I would have so much patience and will to accomplish something and keep on hitting dead end. I do run Multi 1250LW and AB Dick 360 making really saleable products, close registration, thermography B/cards allmost from the scratch, from knowing nothing and this press is killing me. Any advice... If anyone lives within driving distance from Brooklyn, NY and really knows this particilar press I am willing to compencate your time to come and share your experience with me. Thank you. Roman.
     
  4. OkiTech

    OkiTech Senior Member

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    Things that I had done so far:
    Strips look 3-4 mm even
    Plate does covers solid with ink if no water supplied.
    Looks like there is nice solid image on the blanket,
    putting packing under blanket does not change anything,
    putting thicker packing does not change anything
     
  5. fro10987

    fro10987 New Member

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    Unlimited I am not familiar with the Ryobi but I had a similar problem with a press that had a Kompac water system. The edges of the water form roller were worn and the roller needed to be replaced. This is just a guess in the wind as you have not specifed the make of your watering system. This Kompac had replaceable nylon seals on the sides that were constantly being replaced to no avail.
     
  6. FFR428

    FFR428 Senior Member

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    How are you mixing your solution? Per 1 qt bottle I use 4 oz solution (pink silvermaster (which I believe you're using) and 2 oz of silvermaster etch then fill to top line with H20. Something to try is fill a few clean jugs with water and let them sit to distill a few days. I've had better luck doing this then running straight from the tap. The water system on the 3200 is a ***** at best. So I feel your pain. I use the etch as a wetting agent being it's a alcohol based solution. It does help. Also poly plates do require a bit more water to run. As for the line on your lead edge try moving the image down 1/8" on the plate. This will allow you to move the plate cyl up above the blanket and will eliminate the lead edge line. Should not be a problem if you can run more than a 17" sheet. You have the room. Right now if yor running the plate and blanket cyl gripper edge parallell you'll get a line no matter what. This is common buildup any press will get when running jobs "to size" stock wise. Also if you over pack the blanket you'll get the lines as well. It's not so much a pressure problem you have it's a water balance issue. So stay well within factory specs on the packing. Also be sure your plate chemistry is not spent and needs to be changed. So tell me what your solution mix is now. You might need to change it a bit to better suit the "good" Brooklyn water ya got there.
     
  7. OkiTech

    OkiTech Senior Member

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    Thank you very much for all this attention. I am using distilled water and AB Dick fountain solution for dampening. I will try to mix it the way you had recommended and as far as framing-I see your point, besides moving image on the plate, I see that I'd have to re-arrange impression to blanket cylinders position a little bit on the bottom unit. I guess make it the way it positioned on the top since top unit has no problem. Thank you, thank you, thank you!!!
     
  8. FFR428

    FFR428 Senior Member

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    Glad to help and good luck. Keep me posted on how things are going. Distilled H20 is by far the best when running the poly or silvermaster plates. And you might have to adjust your mix to suit. But that should give you a good base to work from. Sorry I'm so late with the reply here. I don't check in here as often as I'd like to.
     
  9. pcprint

    pcprint Member

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    i have run 3200pfa for years and sorry to say you wont get dense solids off it,mainly cos its blanket to blanket pressure there is no impression cylinder as such,keep me posted on any problems
     
  10. mrbob

    mrbob New Member

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    Pfa

    Try using rotary inks. They run fine
     
  11. mrbob

    mrbob New Member

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    Try using rotary inks. They run fine
     
  12. pcprint

    pcprint Member

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    hi you just wont get dense solids off this press, its not made for that kind of work,think about it , its blanket to blanket pessure ie rubber to rubber. that press is mainly used for bookwork ie text ,pictures etc,only way to get decent solid is to run a screen then solid over it
     
  13. demel

    demel Senior Member

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    what is the screen(tone) percentage you could recommend as a first run
    before the solid. is 35% screen enough for this purpose.


    regards

    demel
     
  14. colorkey

    colorkey New Member

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    Originally Posted by UnlimitedBT

    Originally Posted by UnlimitedBT
    Hi everyone! If there is a professional who knows how to run this press please please please- a few words of advise. I am a new printer with 10 years large copiers service experience so i can read, understand ( I think ) and follow manuals on all the adjustments procedures... Press has all new soft rubber rollers, nips are within range, AB Dick pink fount. solution, Spinks Acrylic ink ( as per POPKIN and CO tech that's only ink that will run well on this press). I cannot get density right especially on sides (run 11x17 20lb exclusively). Looks like too much water but any less will cause toning. Poly or Metal plates make no difference. Best case - middle gets nice and dense color but can't get sides printed right no matter how much I open the ink keys... Please any help would be greatly appreciated. Thank you. Roman.

    .......................................................

    Spinks Inks will not work with Alcohol water system. You need to use rubber base inks. Not oil base or acrilics.
     
  15. colorkey

    colorkey New Member

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  16. colorkey

    colorkey New Member

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  17. mrbob

    mrbob New Member

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    Try using Superior inks or a rotary press ink, these all run fine. Simply call a Superior ink tech and they will set you up. Their info is on the web under superiorink.com
     
  18. colorkey

    colorkey New Member

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    Superior inks or rotary inks will not dry on the paper with your water system, they need more water and that will give you more problems
     
  19. mrbob

    mrbob New Member

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    I don't seem to have any problems. I also use spray powder.
     

  20. Lcegraphics.com

    Lcegraphics.com Member

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    Ryobi 3200PFA Printing Tips From Joe Castillo Lce Graphics

    Hello Sir:
    My name is Joe Castillo with Lce Graphics. I sell and service these presses. Here are a few tips.

    First Ink roller pressures are very important. Because this press has integrated dampening.

    1st) Check form to oscillator pressure. You should have 1/8 to 5/32" pressure stripe between Ink oscillator and ink form rollers. This pressure is often overlooked and is very important. The adjustment is located on both sides of oscillator bushing housing. It requires a flat tip screw driver. Follow manual for direction of adjustment.

    2nd) Check Ink form to plate pressure. Here you shoud have 3'32" to 1'8" Stripe You adjust that by turning eccentrics located on both the op and nonop sides. refer to manual for adjustment direction.( The stripe is obtained by allowing the press to set still for at least 20 seconds then by rotating the press you can see the "contact stripe" on the rubber roller. Process blue is the best color for this procedure.

    3rd) Parrallel the water ductor roller to assure even water distribution. This is adjusted by the eccentric bearings located on pusher arms on each side of the water ductor roller lift arms.

    4th) Set and check the water ductor to pan roller pressure. It should be 1/16" to 3/32" stripe.
    This is adjusted by the tension screw located just above the water ductor bracket on each side Op and nonOP.

    5th) The plate to blanket pressure must be checked and or adjusted. Very important.
    Ink up the press solid inking the plate and blanket cylinders. ( With Printing plate mounted) This is done by holding the single lever in the 4 th position. Then stop the press with the plate and blanket cyliners touching as close to the center as possible. Now alow 20 seconds for the stripe to form. rotate the press around until the stripe is visible. it should be from 3/16" to 1/4" and it should be even all the way across. Do this on both units.

    6th) Now lock the press in impression. This is done with a rubber band holding the impression latch trigger in locked position. Now the two blanket cylinders should be in contact. Remember this is a blanket to blanket press. Even so the bottom Blanket cylinder is considered the impression cylinder. After inking up both blankets locked on impression stop the press with blankets in contact. Again allow 20 seconds. Here the stripe should be 1/4" to 5'16" in auto impression mode. Refer to service manual for adjustment procedures.
    It is vital that the pressures be maintained as listed herein. Otherwise the efficient transfer of ink to your paper will not produce quality copies.

    Here are some more tips.
    1) always be sure you ink up the dampening rollers completely before you put the water in tray. Also take an ink knife and ink up the ends of the pan rollers because this causes the press to print wet on the ends causing light image on the edges.
    2) Remember you are running an integrated dampening system. This system does not dampen the plate directly it dampens the ink and then the "Emulsion" of ink and water are applied to the plate simultaneously.
    You can watch a video of me running a Ryobi 3200PFa on YouTube. The link is as follows>
    http://www.youtube.com/watch?v=xj4XDXXRWyo

    If Ican be of further assistance you may callme at 1-800-634-2176

    Joe Castillo LceGraphics.com
     
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