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can anyone help with pixelated & banding on cadet please
Hi everyone,
I’ve just started up and am producing small decals for a couple of clients at the moment. This is my first job and i’m having a real problem with the quality of the prints being produced.
I’m using a Cadet 30" with Troop RIP, my decals are around 150mm x 90mm at there largest. . And are all 600dpi in photoshop.
The problems I get are heavily pixalated? graphics, color gradients on the screen become very noticeably dithered?, where there are blocks of one color the print becomes pixalated with many different color dots. Text is also effected in the same way.
Is this my print heads, i hope not?
Do I need to tell the troop what resolution my prints are? Do I need to adjust color settings? Do I need to throw this printer out the window? Or slide it out slowly its very heavy.
Any help you can offer would be much appreciated
christian
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9 Replies
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what profiles/vinyl etc are you using?
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are they 600dpi at the largest size? are they a ‘real’ 600 dpi, or have they been manipulated? In Photoshop, are they pixelated if viewed at 100% on screen? is this too many questions? 😛
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quote :are they a ‘real’ 600 dpi, or have they been manipulated? In Photoshopshane is on the money here the file is rubbish.
if they were originated at 600 dpi at that size they will be gob smacking if printed at 720 dpi
chris
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Thanks for your help guys,
I don’t think it is the file, they have be rasterised from a vector image. They are not pixelated up close on the computer screen.
I can create a block of color in photoshop 600dpi, print it, and I get the sme effect.
I am using a 1 year gloss white vinyl, and the profile is set to the same (unifrom 1 year vinyl). I am confused because the chap that set up the machine was able to print a very good image. It had some banding which is still a problem. But it was very good. I know that the printer must be capable of a lot more
christian
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quote christian reynolds:Thanks for your help guys,
I don’t think it is the file, they have be rasterised from a vector image. They are not pixelated up close on the computer screen.
I can create a block of color in photoshop 600dpi, print it, and I get the sme effect.
I am using a 1 year gloss white vinyl, and the profile is set to the same (unifrom 1 year vinyl). I am confused because the chap that set up the machine was able to print a very good image. It had some banding which is still a problem. But it was very good. I know that the printer must be capable of a lot more
christian
Christian, the RIP will not change the image unless you are using the rip to enlarge the file at printing. It will only print what it gets, so I think you have a software configuration issue.
If the file going to the printer is smooth, it should print smooth. Pixelation only happens when you are trying to get too few pixels to print on a large area. At 600 dpi, this should be the least of your problems.
If it looks perfect at 100% size on the screen, then it should print the same.
Are you looking at the screen as a full screen, or are you going in to check it out up close.
Bit confused how a file that is essentially hi res, will print low res to the machine.
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Hi Christian
Don’t go by what you see on the screen – this can be very misleading.
The file sounds as if it should print OK – are the heads low and the heater on? Be careful with this material as it will buckle if heated and then left causing the heads to crash.
Double check the profile as this vinyl will only print on the correct one. If all this fails e-mail me the file and I will do a test print for you.
Cheers. Nick.
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It looks to me like the CMYK colors are not lined up correctly, like one of those 3D pictures where you need glasses, could this be an issue. I don’t know how the guy who installed it would have got such a good print though.
The thing is, if I print a block of color (a circle of pink) at 600dpi, 40mm across from photoshop, I get pink but the with lots of blue dots as well.
???
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I’m off to bed now mate. I’d take up Nicks offer.
Try printing at 300dpi. have you tried checking the calibration of the unit?
Also, print block colours of the CMYK colours. see what happens. Print some text, in CMYK too. Standard text, nothing fancy. If the edges are ‘furry’ it will need calibrating. If it has other colours mixed up in the print, it could even be a static problem.
But ot would be good to make sure the file is OK 1st, see if nick can test it for you..
Sorry can’t be any more help…
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quote christian reynolds:I am using a 1 year gloss white vinyl, and the profile is set to the same (unifrom 1 year vinyl).
christian
the uniform 1 year stuff has changed ( they wont tell you that but I suspect it has), we get disasterous results with this rubbish, the print looks contaminated and pools and bleeds and is dreadful stuff almost as though the print has a mottled metallic finish, try a different vinyl, we changed to metamark and the print is perfect, proving the 1 year vinyl is just cheap rubbish, may not be all of your problem but I bet it contributes to it!
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