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Enelson June 23rd, 2016 01:56 PM

Dtg viper problem
I'm having problems with the viper. Only will print yellow and white. I'll clean it get a good nozzle check and print, and then it will go back to yelloe and white.

treefox2118 June 23rd, 2016 02:07 PM

Re: Dtg viper problem
15 Attachment(s)
When was the last time it printed all the channels?

Enelson June 23rd, 2016 02:11 PM

This morning it was a great nozzle check and then idk what happens. Samething happened yesterday.

treefox2118 June 23rd, 2016 02:26 PM

Re: Dtg viper problem
15 Attachment(s)
Ignore the nozzle check, when was the last time you actually printed designs and all channels were firing fine?

Enelson June 23rd, 2016 02:28 PM

Last night. The printer was sitting for a couple weeks before I got it.

treefox2118 June 23rd, 2016 02:31 PM

Re: Dtg viper problem
15 Attachment(s)
That's probably the issue. If a printer sits for too long, the ink in the lines, dampers and even the capping station residue can gunk up, separate, etc.

You might get one good print out of it, but if you flush any of that gunk into the printhead, you may end up getting some terrible clogs.

I would suggest tossing the dampers and putting new ones in, and also flushing all the lines/tubes as well (NOT through the printhead).

If you're technically savvy, reverse waterfall the printhead to try to remove any gunk or chunks of dried separated ink.

Clean the capping station, clean the wiper blade.

Enelson June 23rd, 2016 02:36 PM

Thanks I figured I'd have to flush the whole thing.

treefox2118 June 23rd, 2016 02:39 PM

Re: Dtg viper problem
15 Attachment(s)
The sooner the better. You can blow a printhead if any sediment is too big to get out.

Don't let DTG printers sit for more than 2 days if you can avoid it. Nozzle checks aren't good for actually confirming problems -- the amount of ink printed on a nozzle check is so little that it can't always inform you of a problem.

Enelson June 23rd, 2016 02:58 PM

Thanks again.

pronetmedia June 23rd, 2016 03:44 PM

Re: Dtg viper problem
Has anyone had any experience using a Printhead Doctor system to fully clean heads that are clogged and not functioning?



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