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STILL Troubleshooting HP DesignJet 8000s

Discussion in 'Hewlett Packard' started by Shroudz, Jul 11, 2017.

  1. Shroudz

    Shroudz New Member

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    Apr 2, 2017
    Dallas
    Yellow ink will not print. C/M/K/Lc/Lm print on all nozzles. We have tried replacing the ink, changed the print head, running print head cleaning cycles. Printer shows no ink in cassette, but I have verified that it is new, liquid and unclogged. The level indicator on the bottom of the cassette is functioning.

    Any thoughts? I'm kinda desperate and pretty much out of money to throw at it. I do have some spare parts from another machine.
     
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  2. BigfishDM

    BigfishDM Merchant Member

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    Jun 22, 2009
    All Over
    Was this a new machine? Sounds like you invested into a money pit. I will give you a few grand towards a new printer for that thing. (So will all the dealers out there FYI)
     
  3. Shroudz

    Shroudz New Member

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    Apr 2, 2017
    Dallas
    No, it was running and printing the day I bought it. Then when I moved it to my location, I didn't plug it in right away. Bad news, I know. I've never owned a wide format printer before, so this has been an account-draining experience for me. I think I have learned pretty much every lesson so far the hard way.

    I can afford a new machine if that "few grand" is all the new machine costs before the "few grand" discount...
     
  4. BigfishDM

    BigfishDM Merchant Member

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    Yeah unfortunately that wouldn't be the case.
     
  5. danno

    danno Member

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    Mar 26, 2013
    NC
    Have you tried powering up the machine with the yellow ink cartridge uninstalled? Then installing cartridge when it asks for it. The other thing to look at would be the contacts inside the machine itself. Check for ink residue around that area.
     
  6. Shroudz

    Shroudz New Member

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    Apr 2, 2017
    Dallas
    Tried both to no avail. Anyone know how to test the primer pump? Or anything else relevant that I haven't mentioned?
    It's sad how little information is out there on troubleshooting this machine.
    Or I'm just incapable of finding it :/
     
  7. AKwrapguy

    AKwrapguy Member

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    Anchorage, AK
    I had a a similar issue with one of our HP 8000. Could be several issues going on. First when it goes through a cleaning cycle do you head and grinding or chattering noises that sound like gears are slipping? If so than the issue is going to be the bushing on the gear axle, it has worn down and the motor is not properly engaging with the pumps.

    If this is not the issue try placing a few drops of cleaner into the capping station and manually prime the pumps. You should see the cap cleaning solution drain down. If you don't see this than your capping station could be plugged up, tube could be damaged or disconnected.

    Also post an image of a head print test to see of you have any clogged heads.
     
  8. Shroudz

    Shroudz New Member

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    Apr 2, 2017
    Dallas
    I'm back to trying to fix this thing. All of the original post conditions still apply, but I noticed that there is air in the yellow ink line that doesn't move when the print or prime cycles happen. So I know ink isn't moving. Are each of the ink lines primed by a separate pump/motor, or is it a single unit that primes all the lines? I have a fresh bag of ink in it, but the old chip in the cartridge. Would the chip telling the printer it's empty keep the primer/pump from attempting to do the job? Have I been kicking this rock because of a $5 chip all this time? If somebody has the patience to walk me through a complete diagnosis, I will try to not be a complete waste of time...
     
  9. Shroudz

    Shroudz New Member

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    Apr 2, 2017
    Dallas
    Anyone? Danno? AKwrapguy?
     
  10. Joe House

    Joe House Member

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    WA
    A proper PM visit on those included new cap tops and new prime assemblies. Have you replaced those? Have you tried a new ink cartridge? I'm afraid if you left it unplugged you may have a very big boat anchor. Sometimes it makes more sense to involve a dealer who can help you avoid such gotchas that create money pits.
     
  11. AKwrapguy

    AKwrapguy Member

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    Sep 6, 2014
    Anchorage, AK
    So if you moved the printer and left it unpowered for a little while? Several hours or days? It could be that the ink int he line has dried. Also if you have ink in your line and your unable to get it to move, this could be the issue as well. If there's any slack in your line try to raise or lower it to see if moves at all. if it doesn't than it most likely means that your line needs to be replaced.

    Also the white sprockets that are under the capping station or the pumps and these are all activated at the same time. You might want to check the line that goes from the ink to the print heads as well as the line that goes from the capping station to the pumps and pumps to waste tank.
     

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