ROLAND BN-20 CYAN INK PROBLEM

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everettprinters
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ROLAND BN-20 CYAN INK PROBLEM

Post by everettprinters » Tue Aug 29, 2017 4:01 pm

We are having problems with our BN-20 and it seems to be something to do with the cyan ink.
It starts of printing the test file correct for approx 5mm but then the cyan starts to fade to a green colour.

I've attached the test print and nozzle check to see if anyone can point me in the right direction on how to solve the issue.
The machine is a CMYKWh configuration and is approx 17 months old.

Please note on the nozzle check print out you can see green in the cyan column at the top and also halfway down.
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20170829_154654_resized.jpg
20170829_154631_resized.jpg

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mrtn
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by mrtn » Tue Aug 29, 2017 5:42 pm

Have you replaced your captop every 6 months?
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everettprinters
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by everettprinters » Wed Aug 30, 2017 8:37 am

No we haven't. Was never told we needed to and have had no notifications to either. Is this the problem?

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mrtn
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by mrtn » Wed Aug 30, 2017 9:17 am

Yes. Captop's nominal lifetime is 6 months, most stretch it to a year or more but you would be risking print head lifetime with it.

In machines equipped with white or metallic you need to replace the captop every 6 months sharp due to the thick pigment clogging the filter causing reduced head cleaning performance. The first problems usually appear at 9 months in.
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everettprinters
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by everettprinters » Wed Aug 30, 2017 2:10 pm

Latest test.
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20170830_140544_resized.jpg

everettprinters
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by everettprinters » Wed Aug 30, 2017 2:12 pm

captop
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20170830_132414_resized.jpg

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Kai Perry
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by Kai Perry » Thu Aug 31, 2017 2:51 pm

Give the captop a clean with cleaning fluid and the swabs, it does look very built up with ink.
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ArferMo
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by ArferMo » Thu Aug 31, 2017 8:21 pm

Not a lot of loving care been going on there.

everettprinters
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by everettprinters » Fri Sep 01, 2017 1:59 pm

Just replaced the captor, wiper and felt wiper and we still have the exact same results.

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Kai Perry
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Re: ROLAND BN-20 CYAN INK PROBLEM

Post by Kai Perry » Fri Sep 01, 2017 2:21 pm

Can you post the latest nozzle test and an image of the output now?
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