1. Dismiss Notice
  2. Picture Of The Week (POW) Information and Submissions
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice
  3. Official PK Poll: Is there any future in refilling?
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice
  4. PK Featured Thread: How to take pictures of gloss differential properly?
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice

Missing segments in nozzle check

Discussion in 'Epson InkJet Printers' started by apetitphoto, May 29, 2017.

  1. May 29, 2017
    apetitphoto

    apetitphoto Printing Ninja

    Joined:
    May 27, 2017
    Messages:
    94
    Likes Received:
    85
    Trophy Points:
    77
    Location:
    Killeen, TX
    Printer Model:
    Epson WF-3620
    Besides "none," how many segments can be missing in a nozzle check? My WF-3620 has one segment missing on the black channel. This is after switching to PC inks & cartridges and several nozzle checks and 4 or 5 head cleanings over a few hours.

    Thanks
     
  2. May 29, 2017
    turbguy

    turbguy Printer Master Platinum Printer Member

    Joined:
    Sep 10, 2007
    Messages:
    1,302
    Likes Received:
    897
    Trophy Points:
    263
    Location:
    Laramie, Wyoming
    Printer Model:
    Canon i960, Canon i9900
    A complicated answer:

    Depending on the paper and quality chosen, you may, or may not, see any effect from one "missing" nozzle.

    Try a draft print of text on plain paper (a tough test). Do you see any missing lines in the text?

    That said, a missing segment can be caused by an air bubble in the head. Let is sit overnight and see if the nozzle check changes. Report back, please.
     
    The Hat likes this.
  3. May 29, 2017
    apetitphoto

    apetitphoto Printing Ninja

    Joined:
    May 27, 2017
    Messages:
    94
    Likes Received:
    85
    Trophy Points:
    77
    Location:
    Killeen, TX
    Printer Model:
    Epson WF-3620
    I made the switch Thursday (a couple of days ago) and had lots of missing segments initially. That's when I did the majority of cleanings to get it working. I printed a reference image and saw no problems. The next day I printed a small image that looked clean, and in fact was very dark, but that probably
    wasn't using K, as I've learned. So, just to be annoying I printed another reference and saw gaps. A subsequent nozzle check showed more black gaps. So another head clean and nozzle check that showed the one missing segment. Text works fine. Haven't had a chance to print since then.
     
    The Hat likes this.
  4. May 29, 2017
    apetitphoto

    apetitphoto Printing Ninja

    Joined:
    May 27, 2017
    Messages:
    94
    Likes Received:
    85
    Trophy Points:
    77
    Location:
    Killeen, TX
    Printer Model:
    Epson WF-3620
    Having a chance to exercise the printer after a couple days of non-use (powered on and idle), the first nozzle check was a mess but subsequent checks went back to the one consistently missing black segment.

    Quick question about nozzle check patterns: What I see is essentially K,K,CMY,CMY. Does this mean that there are two sets of nozzles for each group?
     
  5. May 29, 2017
    mikling

    mikling Printer Master Platinum Printer Member

    Joined:
    Jul 2, 2006
    Messages:
    2,712
    Likes Received:
    983
    Trophy Points:
    273
    Location:
    Toronto, Canada
    At some point, you might need to consider that the "one" nozzle or whatever might not be clogged but actually not working anymore. Fixing printers is always a cross your finger endeavour. Something simple go bad sometimes and cannot be remedied or fixed.

    Nozzles of the same color are staggered as well to allow for drying times to increase between the laying down of a dot. You ideally will not want to put the same color next to each other if you can stagger them to allow one some time to dry before another one is printed very close. Thus it is not just one line vertically but all across the nozzle plate. This should give an idea of the precision that these machines must achieve where the travel speed of the droplet must be accounted for as well as the height of plate.
     
    apetitphoto likes this.
  6. May 29, 2017
    apetitphoto

    apetitphoto Printing Ninja

    Joined:
    May 27, 2017
    Messages:
    94
    Likes Received:
    85
    Trophy Points:
    77
    Location:
    Killeen, TX
    Printer Model:
    Epson WF-3620
    Not exactly what I wanted to hear about a printer less than 4 months old... I don't really want to fight a warranty battle.

    Thanks for the print head/nozzle information.
     
    The Hat likes this.
  7. May 29, 2017
    mikling

    mikling Printer Master Platinum Printer Member

    Joined:
    Jul 2, 2006
    Messages:
    2,712
    Likes Received:
    983
    Trophy Points:
    273
    Location:
    Toronto, Canada
    Sometimes printers can be defective. If it is 4 months old, put in some OEM color carts...the ones that you had saved before switching to this B&W stuff and see what happens. Warranties are there for a reason. If it is under warranty you really should not be mucking around too much in there...lest something you do could actually really messes it up and then it is really your causation.
     
    The Hat likes this.
  8. May 30, 2017
    turbguy

    turbguy Printer Master Platinum Printer Member

    Joined:
    Sep 10, 2007
    Messages:
    1,302
    Likes Received:
    897
    Trophy Points:
    263
    Location:
    Laramie, Wyoming
    Printer Model:
    Canon i960, Canon i9900
    Please post a scan or image of your current nozzle check.
     
    The Hat likes this.
  9. May 30, 2017
    apetitphoto

    apetitphoto Printing Ninja

    Joined:
    May 27, 2017
    Messages:
    94
    Likes Received:
    85
    Trophy Points:
    77
    Location:
    Killeen, TX
    Printer Model:
    Epson WF-3620
  10. May 31, 2017
    turbguy

    turbguy Printer Master Platinum Printer Member

    Joined:
    Sep 10, 2007
    Messages:
    1,302
    Likes Received:
    897
    Trophy Points:
    263
    Location:
    Laramie, Wyoming
    Printer Model:
    Canon i960, Canon i9900
    I'm not certain, but it does appear you have two sets of nozzles for each color.

    Anyone else have an opinion??
     

Share This Page