Ink is rubbing/scratching off any type of substrate. The techs and I have replaced numerous parts and rebuilt the inks and gave everything a thorough cleaning and changed the filters and completely put new imaging oil in, cleaned scorotrons, new blanket, pip, etc.. It is a used Indigo 5000. No matter what tricks we try the ink still isnt adhering to the substrate. The humidity is very low by the Indigo 5000; we are getting a humidifier but I have a feeling that won't fix the issue.
What's your blanket temp set at? If it's too low or the sensor is not reading it correctly, this can happen. Is it on EVERY substrate? Some worse than others?
How soon does the ink start to rub off? Immediately? What does your first transfer sheets look like?
If you're under contract, don't waste YOUR time. Get HP to get someone in and solve this problem. Don't let them off the hook too easily. They will get you to jump through their hoops for along time. If you're shared maintenance, you're only responsible for so much.
ink rubs/scratches off immediately or after an hour of setting. i usually hit first transfer anywhere from 4-6. taking the shared main. class in december (of all months to travel); but i've been printing and maintenance'ing the indigo for 6 months(i've trained at 2 other printing companies plus a lot with 2 different techs). I found the user's guide today off the HP website; it's 400 pages of information that I already know and perform because of how much trouble we've had with this indigo so far. guess i'll just place another service call. i've been thru every possible troubleshooting idea that comes to mind like raising blanket temp, running heavy sub mode, run at levels 1,2,3 & normal. conductivity, etc. is perfect. i did read that on 1st transfer you are supposed to get 3 triangles for front and 3 for rear; i don't do it like that, i've been choosing the first "complete" triangle for front and first "complete" for rear that i see.
we had very similar issues, and we did a full ink-rebuild and the issue was gone. From there on we do it every week. Also if the ink coverage is more than 300% then there is a problem. It won't stick.
Try using a GPA certified paper and see if you still have the same problem. If yes, then call HP and they have to act on it.
Hi,
you wrote that you cleaned the temp sensor, but is it lately calibrated ?
I know that sometime's it losses it's setpiont
The immagine agent, let it out and try some from antoher bulk...cause for inkt problems sometimes.
Whats the condition of the carbonbrushes/ holders/ cables/ contacts? If the rings on the drums are greassy you might get strange issues there...
Paperquality..? This is always tricky..has it coated properly...very hard to tell cause you can't see it or measure it... Humidity of the paper ? ( to ) wet / ( to ) dry ?
Ask arround for other inkt series...( other bacht numbers ) it wouldn't be the first time.....
I will try to think of some things...
Regards