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Author Topic: z3100 colours mixing in printhead  (Read 193 times)

jaq

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z3100 colours mixing in printhead
« on: July 12, 2018, 07:52:04 AM »

Hello,

the printhead seems to mix two colours internal when the carriage sits on the service station. Looks like the Printhead soaks the dirt ink up from the service station. Had this issue with two different printheads.
After Printing a while the fault disappears continously because the mixed ink is used and new clean ink flows through the printhead.
Can it be the vacuumpump of the service station? What is the use of this pump?

Thank you


« Last Edit: July 12, 2018, 09:38:52 AM by jaq »
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glyph

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Re: z3100 colours mixing in printhead
« Reply #1 on: July 12, 2018, 06:45:29 PM »

In 10 years of 3100/3200 printing, I've had several printhead failures that resulted in two channels mixing, which were always solved by a fresh printhead. I suppose that it is possible for a printhead to pick up ink from the service station, but IME it is more likely to be the carriage itself. I don't think that there is a vacuum pump in the service station. The odd noises are mostly the pumps pressurizing the ink (supply vs. waste).
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