print changes colors halfway thru job

[signworld]

Please help . While printing my red turns orange and my print changes colors. Why z this happening and what do I need to do to fix this . Need help before we pull out our hair please and thank u

 

[J Hill Designs]

first thought is issue with magenta ink flow - print a nozzle test directly after it happens - most likely bad damper

 

[signworld]

Thank u sir we will try that and let u kmow I appreciate u taking the time to help us

 

[signworld]

print

This is what happens when I do a test draw.

 

[signworld]

print

This is what happens when I do a test draw.

 

[reQ]

Well, your magenta cuts out completely, then comes back. Damper/air in lines.

 

[WB]

try priming your head manually.. looks like you've pump is going bad

 

[signworld]

If the pump is going bad by chance why would all the other colors fine? We changed the damper and filled it still missing some magenta.

 

[signworld]

How do u prime head manually? Is that pulling a suction thru the lines?

 

[reQ]

When printheads are connected to cap stations, use syringe to pull the ink directly from print head using the pump line. (don't pull hard, because you might damage the printhead) Also, listen if there will be any air leaks also

 

[signworld]

Ok we did pull a suction thru the line and damper yesterday when we changed the damper . Still no change

 

[MikePro]

definitely ink flow dropout in the magenta.
*could be air in ink lines, causing it to "burp", solved by running a fillupink repeatedly until you see it drawn into the damper
*could be broken manifold. (uncommon, but likely considering you're fiddling with the dampers) its the black plastic tip on the printhead that the damper fits-into. only fix is replacement. can't be purchased seperately on ebay if you don't want to replace the whole printhead. *some assembly required, as well as printhead replacement procedures, which are a pita.
*could be bad ink pump not refreshing the ink siphon. run cycles of disway washes to see if the cap fills/empties like the others.
*could be bad seat of the printhead to the capping station. solved by slightly pulling-up on the plastic cap and re-parking the printhead carriage, will make a tighter fit.

clean everything thoroughly, obviously, before trying any of the above.

 

[MachServTech]

definitely ink flow dropout in the magenta.
*could be air in ink lines, causing it to "burp", solved by running a fillupink repeatedly until you see it drawn into the damper
*could be broken manifold. (uncommon, but likely considering you're fiddling with the dampers) its the black plastic tip on the printhead that the damper fits-into. only fix is replacement. can't be purchased seperately on ebay if you don't want to replace the whole printhead. *some assembly required, as well as printhead replacement procedures, which are a pita.
*could be bad ink pump not refreshing the ink siphon. run cycles of disway washes to see if the cap fills/empties like the others.
*could be bad seat of the printhead to the capping station. solved by slightly pulling-up on the plastic cap and re-parking the printhead carriage, will make a tighter fit.

clean everything thoroughly, obviously, before trying any of the above.

 

[MikePro]