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What causes this in my spot color backgrounds?
- Thread starter okeesignguy
- Start date
BIG EASY DOES IT
New Member
To me looks like possible banding and issues with black head. Would need to address the issues with the head first most likely.
okeesignguy
New Member
Thank you...."address" it how exactly...?
GaSouthpaw
Profane and profane accessories.
Nozzle check, cleaning, maintenance. Whatever the user manual suggests.
okeesignguy
New Member
Aren't the blue and black printed from the same head...?
Because my blue prints perfectly...
Because my blue prints perfectly...
GaSouthpaw
Profane and profane accessories.
I can't speak specifically on the Roland, but- even if the inks all come from the same head, they aren't coming from the same nozzle. A black nozzle could be misfiring/clogged/whatever while the Cyan right next to it is fine. Check the troubleshooting section of the manual and follow its suggestions.
niksagkram
New Member
What printer do you have? Does it happen on all substrates, and different profiles? Maybe post a pic of your nozzle check, and maybe a pic of your perfect blue next to the black? Also, check your heat settings and head height.
Mark
Mark
BIG EASY DOES IT
New Member
I can't speak on roland exactly either as I have never used one of their machines. From the print though I gave you what I thought your having issues with. You could call a tech to service it if you don't know how to take it further. As someone else said. Most printers have printheads that print two colors. The tip of the printhead has multiple spray nozzles and sides. No one nozzle sprays multiple colors. So if your having an issue with one and not the other you can probably say it's just the black line or nozzles. Not necessarily the whole printhead. Also black is the most used of the inks usually so it would make since, that once you start to have print issues it first starts to show in the black.
niksagkram
New Member
Just another observation. The black background is not necessarily a "spot" colour. Depending on your set up and profiles, it could be a CMYK background. Take a close look at it with a magnifying glass. You'll see all the little dots of CMYK ink if it is.
Mark
Mark
okeesignguy
New Member
I am going to look further into these things as soon as I get a chance...Thank you all!
T_K
New Member
Do a calibration test in addition to the cleaning test.
I've used 2 Versacamms - currently on a vs-540i. When we get banding like that is usually clogged nozzles. But when the cleaning test print comes out fine, it's usually the calibration. This controls how much the media moves forward between passes. When you've got a heavy roll of material, you need stronger pull. But as you print down the roll, you sometimes need to adjust the calibration to keep the banding from occuring.
I've used 2 Versacamms - currently on a vs-540i. When we get banding like that is usually clogged nozzles. But when the cleaning test print comes out fine, it's usually the calibration. This controls how much the media moves forward between passes. When you've got a heavy roll of material, you need stronger pull. But as you print down the roll, you sometimes need to adjust the calibration to keep the banding from occuring.