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Cyan colours still dropping out on Roland SC545EX – help?
Hi guys. Trying to run 30 boards off today on my SC545 EX but still getting this colour drop out. Seems really strange. If I do a 300mm square block test with CMYK Lm Lc all looks perfect. No drop out/fade at all. It only seems to be a problem when it’s in a file even though the print settings are the same. Am I right in assuming it’s a Versaworks software problem ?
Cheers
Lee
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9 Replies
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Try nesting a small CMYK strip up the side of it so you can see if anything is dropping out. My first guess would be dampers. They’re cheap enough from Digiprint, replace all 12 and the o rings at the same time…
Stafford
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Hi Stafford
Cheers for your quick reply – appreciated. I replaced all the dampers about 8 months ago and the machine hasn’t done much work really. It did cross my mind that it might be a damper problem and bit the bullet buying 2 genuine dampers from Digiprint and installed them yesterday on the cyan head but made no difference. Also replaced the cyan/magenta pump but all to no avail.
Will have a go at printing a cyan strip alongside as you suggest. I have also flattened the files to see if this would make a difference but seems not. Seems really odd that it will print blocks of colour fine but actual files I need to earn money from it doesn’t want to play ball !Will give the cyan strip a bash though
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Ouch!! OEM dampers a expensive!!
If this was a Mimaki I would say it was to do with the physical head alignments. Quite often a combination of slant and unit adjust can cause this sort of pattern. As you’re using a Roland, you could try setting your BIAS adjust as tight as possible but I can’t recall seeing this sort of pattern on a Roland being calibration related. It might be worth a bash though…
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Yeah they were REALLY expensive ! With delivery and vat £50 really expensive for just two! Bought generic ones before for pennies and they’ve been fine but wanted to eliminate any doubt. I get this colour fade only with cyan related solid colours. A photographic print for example doesn’t show any issues (unless it’s masked my the randomness of the pixels). Will take a look at the Bias.
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Both BIAS and vertical are perfect. Still thinking it’s possibly an air leak and so the print head not drawing through enough ink or do you think a irregular voltage problem to the cyan head might cause this dropout ?
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I’m not really sure without being in front of it. You could try swapping heads about and see if you can move the fault to another colour. It’s a bit of a ball ache to do but could wind up saving you some money….
Stafford
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How did you get on, Lee?
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Hi Stafford
Hoping you’re well ….and busy too. Pretty much sorted to be honest. It seems it was a profiling issue. Machine was out of whack. Prints really nicely.
Have sold the business and machine now – hopefully moving into an occupation that’s less stressful ! Difficult doing everything one’s self with sign making as much as I’ve enjoyed doing it for 10 years
All the best
Lee
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Glad you got it sorted, and best of luck in the future.
Thanks for updating the post 🙂
Stafford
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