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Printing problems

Posted: Wed Sep 21, 2016 4:53 pm
by brendyC
Hi i am currently using a 540v and i encountered a problem last week. basically the blues where printing out in purple then a pink.. blue seems to have fixed itself after a series of powerful cleans now the grey wont print correctly at all its printing a murky brown colour as showen Image Image any ideas guys have a huge backlog to get through :( :(

Re: Printing problems

Posted: Wed Sep 21, 2016 5:50 pm
by mrtn
Which inks?
What did the test print look like when the problem occurred?

Re: Printing problems

Posted: Thu Sep 22, 2016 12:30 pm
by brendyC
inks am using are eco sol max and the test print was fine maybe a few lines missing from the blue nothing major.

Re: Printing problems

Posted: Thu Sep 22, 2016 2:20 pm
by mrtn
The best way of diagnosing this is to make big squares of pure C M Y and K, printing these in Density control only colour management in Standard mode. This way we can see if there any colour irregularities which may be caused by head leakage or similar.

Re: Printing problems

Posted: Thu Sep 22, 2016 2:59 pm
by brendyC
Image
this is printed at settings you said. Below the CYMK, you can see, i tried printing a graphic that was black with grey in it and as you can see its coming through as brown. Any help be great

Re: Printing problems

Posted: Thu Sep 22, 2016 7:11 pm
by mrtn
The pic is of very low quality. Is there colour consistency difference across the print?

Re: Printing problems

Posted: Fri Mar 24, 2017 7:13 pm
by GUY DESILVA
Rolands naturaly will print blues more purple and greys brown to purple if the file has rgb in its properties.

1. make sure your print file is exported as a .eps or high res PDF with color set by Pantone color chart in your design software. or at very least with CMYK values. Use a pantone grey and a blue in your print file is best.

2 in your rip soft ware load the file, in versa works use the file format tab to go into your SPOT COLOR replacement and switch spot color to versa works pantone library solid coated and pick your matching PMS color numbers you already have in your file. Make sure you have check box clicked for spot color replacemet. You can also create a new library and add the CMYK or LAB values you sent in Design Program to the file in versa works so that both have same exact color values. This should most cases print amatching color. if the printer is out of gamut for these PMS in PMS color library then best to maually assign the spot color like i mentioned above in versa works by creating new color library in your edit-spot color setting.

3. If the spot match from Versa Works Pantone library is not fixing it then switch in Versa works to Roland Color library and pick a grey and blue from there as your spot replacements. this will work in almost all cases. If this does produce a grey as intended then a problem with your inks or heads maybe culprit. DO a ink purge, clean heads manually. try again using only versa works - roland color library - grey n blue. use this to determine if your printer can print grey and if it does then its just a matter of setting the spot color attributes to your file. IN ALL My cases a print from Roland Library will print color you seen on your screen if it does then you know your printer is fine. its the file and your Rip software the issue.