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csmithq2l
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Plotter Printing wide Black Bands

HP Recommended
Designjet 4000ps
Mac OS X 10.10 Yosemite

Our Designjet 4000ps has started to print wide black bands. Usual fix is to run printhead cleaning; or the "magic" 3rd print works out. No more. All prints go a couple of swipes and then the wide black bands appear.  I've pulled the printheads and cleaned the contacts; NG. I'm leaning toward the printheads need to be replaced; but because they are expensive I'm looking for confirmation. Thanks in advance for any advice.

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Roy_Kuzmich
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HP Recommended

Yes, One of your Black Printheads needs replacing.

Try running the diagnostic Print to see which one.

 

There is an outside chance that the carriage PCA or Trailing cable is the issue but, could be more expensive than a Printhead and may not be available for this legacy printer (I have no idea about costs)

 

Roy K

Good Luck

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csmithq2l
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Roy, Thanks very much for the reply. I ran the diagnostic print and got Huge black bands all over it. I cancelled the print when it started printing the bands. I'll try it again but I'm  thinking I will just buy 2 new printheads.

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