Our Roland vp540 is printing the colors wrong. We have cleaned it 4 times now. It starts to print fine then slowly fades printing the wrong colors

Question edited for clarity, full 'maker model (what it is)'.
Question moved to the only Roland Printer category.

Try a Head Soak. Make sure the tube to the waste ink bottle is not blocked or pinched.

https://www.google.com/search?q=versacamm+vp540%2C+coverig+image+in+black+ink

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Go to the manufacturers website for that answer

On the pixma printer each time you remove a cartridge. you will need to do a clean of the nozles and print head. you can find instructions in your online operators manual. You hold down the wi-fi button and watch the
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MG3500 series > Overview of the Machine > Maintenance > When Printing Becomes Faint or Colors Are Incorrect
When Printing Becomes Faint or Colors Are Incorrect

Maintenance Procedure
Printing the Nozzle Check Pattern
Examining the Nozzle Check Pattern
Cleaning the Print Head
Cleaning the Print Head Deeply
Aligning the Print Head
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error light flash. 1 flash release prints all saturation levels2 flashes prints the head alignment chart. 3 cleaning 4 flashes deep clean and so on. or its a transfer problem and this case do a transfer belt clean, and a head alignment.

Just one Question?
Do you have your LAN Cable tied with your AC power Cable?
I have th same problem on two VP540 after seven years of trouble free working. A few months ago I was reorganizing my shop and I tied up both cables to avoid tangle cables with machine wheels every time I move It.
I think that the noise produced by AC Voltage Affect the VP540 ethernet port.

hey how are you

dirty scanner.open the printer back cover.remove the scanner assembly clean it ,do the color calibration.u should be fine.

Amuna1

toss it off the roof

you have a ink problem first check your pump is working read your manual cleaning prints . if heads are blocked get your old ink in waste and pour small amout on the heads to unblock them you might have to do it a few times put back together leave overnight and do a powerful clean and you may have to repeat  afew time read your manual its shows you how to pull apart 

That stock might be too heavy for a bizhub.

Specifications state the following:

Plain paper (16 lb to 24 lb),
thick paper 1 (24-1/4 lb to 40 lb),
thick paper 2 (40-1/4lb to 55-1/2 lb),
thick paper 3 (55-3/4 lb to 68 lb),
thick paper 4 (68-1/4 lb to 72 lb)*, OHP transparencies*, postcards*, letterheads,
colored paper, envelopes*, label sheets*, banner paper (24-1/4 lb to 55-1/2 lb)*
Duplex: Plain paper (17 lb to 24 lb), thick paper1/2/3 (24 lb to 68 lb
*Can only be fed through the bypass tray.

These specs are directly from the user guide.

Is the paper running through the bypass tray?

plese clean your printer drum unite clean wast ink