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VS540 new head, bad nozzle test

S

SIGN.DIVISION

New Member
Hey guys, so the tech came out and replaced the head on my vs540, greys were printing pink and I had no Lc on the nozzle test.. Also dampers, captop and ribbons. Got Lc back.. but the nozzle test was a bit funky. He’s messed around for a couple more hours $$$ and got it printing perfect Friday evening. I printed about 50”x120” of nested graphics on Monday and it looked great, then I noticed some banding, so I did a manual cleaning, still banding. Did a nozzle test and it looked funky, did a couple power cleans and it got a little better, but still bad. Now he wants to come back out and change the choke valve. What do you think?? I’m already 2 weeks behind and I already paid him extra to fix the issue. I attached the photo of the nozzle test. The bottom one is the first one. Please let me know what you guys think.
 

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cornholio

New Member
Do a choke cleaning first. )Only available in service mode.)
I service VS since they were introduced and only had one case, where a tube in the choke valve had a tiny hole.
 
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