/ Register

Welcome To Signs101.com: Largest Forum for Signmaking Professionals

Signs101.com: Largest Forum for Signmaking Professionals is the LARGEST online community & discussion forum for professional sign-makers and graphic designers.

 


  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Roland RF640 - Lost Ink during printing

Discussion in 'Roland' started by BunnyOne, Nov 13, 2020.

Page 1 of 2
  1. Nov 13, 2020 #1
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    Hello guys,

    Sorry for my English i'm French :)

    I had 4 Roland RF640 with bulk ink system + Bordeaux Ink PR4.

    For many years i never had troubles. But there is few months i started to have troubles.

    On my last 2 RF640 (2019) Test Print is ok and after few meters sometimes I Lost black, sometimes Yellow.

    After a Medium cleaning the Colors are back.

    I made some test on one machine. I can Damper, Captop, Assy Pump, Head, Bulk Ink. Same Problem after some days.

    Do you have any advice ?

    Thank you for your help !
     
    Tags:
  2. Nov 13, 2020 #2
    balstestrat

    balstestrat Active Member

    640
    98
    28
    Aug 25, 2020
    Between the bits
    If you had the same issue with two printers and you already replaced those parts for one....

    Bad ink?
     
  3. Nov 13, 2020 #3
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    I used the same ink on my 4 printers, and i started to have this Problem on the two youngest (2019) and sometimes on the others but really recently.

    Do you have any recommandations for another ink constructor ?
     
  4. Nov 13, 2020 #4
    WYLDGFI

    WYLDGFI Merchant Member

    1,448
    223
    63
    Oct 27, 2006
    Linden, NJ
    Losing ink that quickly is typically air in the line or possibly ink pump?
     
  5. Nov 13, 2020 #5
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    How to fix it if there is air in the line ?

    Ink pump on one machine is new (3 months) same Problem :'(
     
  6. Nov 13, 2020 #6
    WYLDGFI

    WYLDGFI Merchant Member

    1,448
    223
    63
    Oct 27, 2006
    Linden, NJ
    You checked the dampers and they have ink in them? Changed the dampers? Check the seals on your ink lines as well. Make sure no leaks anywhere in the system....ink pump to printheads. Check all the nuts that hold the ink lines in place. Our XC...assuming your system is similar or same... a while back had same issues. May need to syringe ink thru at the Printhead connection/damper.
     
  7. Nov 13, 2020 #7
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    Yep
    On "N°3" with original damper and "N°4" damper from digisupplies
     
  8. Nov 13, 2020 #8
    WYLDGFI

    WYLDGFI Merchant Member

    1,448
    223
    63
    Oct 27, 2006
    Linden, NJ
    Look at the dampers and your ink lines...likely air getting in there.
     
  9. Nov 13, 2020 #9
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    Yep i just see the damper are not full of ink. How to fix it ?
     
  10. Nov 13, 2020 #10
    WYLDGFI

    WYLDGFI Merchant Member

    1,448
    223
    63
    Oct 27, 2006
    Linden, NJ
    Check the ink lines and fittings. something is loose somewhere and now allowing AIR to enter your system. You are losing flow/vacuum on your ink line. Cap the heads, syringe THRU the capping station line at the bottom until you get ink into the damper and keep and eye on it. You have to make sure all your ink line fittings are tight and secure again on your entire system
     
  11. Nov 13, 2020 #11
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    Ok thank you for the tips, i'll try it on monday, and i'll post the result !
     
    • Like Like x 1
  12. Nov 13, 2020 #12
    signage

    signage Major Contributor

    10,620
    271
    83
    Oct 5, 2005
    Penn
    Check the "O" Rings, might want to look at them with a magnifying glass
     
    • Agree Agree x 1
  13. Nov 16, 2020 #13
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    Hello,

    I pump with a Little syringe after the damper. As you can see on the first Picture, there is a air bubble in the damper, is that ok ?

    I see air bubble in the tube, but after pumping with the syringe it seems ok but after 2 powerfull cleaning my nozzle check is not correct.

    Any ideas ?
     

    Attached Files:

  14. Nov 16, 2020 #14
    WYLDGFI

    WYLDGFI Merchant Member

    1,448
    223
    63
    Oct 27, 2006
    Linden, NJ
    Need to clean your nozzles. Maybe swab them with cleaning fluid.
     
  15. Nov 16, 2020 #15
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    I made a light choke cleaning and it's ok at the moment.

    What do you Think about air bubble in the damper ?
     
  16. Nov 16, 2020 #16
    WYLDGFI

    WYLDGFI Merchant Member

    1,448
    223
    63
    Oct 27, 2006
    Linden, NJ
    Shouldn't have much or any air in the damper to my knowledge. Definitely no air in the ink lines.
     
  17. Nov 16, 2020 #17
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    Yep i'm agree but I tried to pump this *** air bubble, never fix it. Do you think I have to change this damper ?
     
  18. Nov 18, 2020 #18
    BunnyOne

    BunnyOne Member

    26
    1
    3
    Nov 12, 2020
    FWI
    May be I have to change Ink, do you have any ideas ? I'm actually using BORDEAUX PR4.
     
  19. Nov 18, 2020 #19
    Jim Hancock

    Jim Hancock Active Member

    555
    100
    43
    Nov 11, 2008
    Delray Beach, Florida
    There is almost always air in the top of the ink cavity in the dampers and it is OK. The important thing is the output from that cavity is completely covered with ink. I would check the cap, making sure it is clean and correctly aligned to the head. Is the new cap OEM or aftermarket? Captops are one of the parts that you should always use OEM, as aftermarket quality is all over the place and can drive you crazy.
     
    • Agree Agree x 1
  20. Nov 18, 2020 #20
    C5 Service&Repair

    C5 Service&Repair Member

    328
    42
    28
    Jan 14, 2018
    Omaha, NE
    Bordeaux ink. 3-4 service calls a month about clogged heads with that ink. Find a different supplier.
     
Page 1 of 2
Loading...
Similar Threads - Roland RF640 Lost
  1. Berferful

    Roland RF640 print issues

    Berferful, Jan 19, 2021, in forum: Digital Printing
    Replies:
    5
    Views:
    227
    Arcadia Graphics
    Jan 27, 2021 at 4:52 PM
  2. BunnyOne

    Better Ink for Roland RF640

    BunnyOne, Nov 25, 2020, in forum: Roland
    Replies:
    7
    Views:
    457
    SameDay Signs
    Nov 27, 2020
  3. chapmachau

    Question Roland RF640 Printing yellow

    chapmachau, Nov 4, 2020, in forum: Roland
    Replies:
    2
    Views:
    366
    balstestrat
    Nov 5, 2020
  4. thebirddog

    Roland RF640 Blulk Ink System

    thebirddog, Jul 20, 2020, in forum: Digital Printing
    Replies:
    3
    Views:
    1,035
    BunnyOne
    Nov 17, 2020
  5. LaurisGr

    Question Roland XR-640 intermittent cutting issue

    LaurisGr, Jan 27, 2021 at 8:23 AM, in forum: General Chit-Chat
    Replies:
    0
    Views:
    62
    LaurisGr
    Jan 27, 2021 at 8:23 AM

Share This Page


XenPorta 2 PRO © Jason Axelrod from 8WAYRUN

 


Loading...