Roland bn20 user with banding issuses

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Drunknspike
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Roland bn20 user with banding issuses

Post by Drunknspike » Sun Aug 27, 2017 5:45 pm

Hello I have a Roland bn20 which has banding issuses on the cyan ink at the start of the print right hand side it looks ok then in the middle the banding starts then as it goes to the left it starts looking ok again.

Things I've tried so far
I've changed both wipers felt and rubber
I've printed cyan filled squares in a line across the vinyl to see the issue better
I read up on ink starvation and thought it was that to make sure I printed 2 squares in the middle of the vinyl where the lines were more apparent and the lines still appear if it was ink starvation the lines wouldn't appear as it starts printing in the middle instead of at the end of the vinyl there should be enough ink in the head
I've printed a test print there are 4 missing nozzles on the test pattern in the cyan two each on the same line but a part from each other I've done multiple head cleans powerful medium and normal the nozzles won't come back
Can this cause the banding in getting ?

Drunknspike
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Posts: 3
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Re: Roland bn20 user with banding issuses

Post by Drunknspike » Sun Aug 27, 2017 5:50 pm

some pictures
Attachments
21150466_10155713030054581_3018311534095043264_n.jpg
21105523_10155713030124581_5770802739812594623_n.jpg

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mrtn
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Re: Roland bn20 user with banding issuses

Post by mrtn » Sun Aug 27, 2017 6:22 pm

Yes, it's not ink starvation, I'd bet on media crash and resulting head damage. You might want to soak the captop in cleaning liquid overnight for a few times to see if it opens up.
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Drunknspike
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Re: Roland bn20 user with banding issuses

Post by Drunknspike » Sun Aug 27, 2017 6:30 pm

thanx for your reply how would i do that on a bn20?

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mrtn
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Re: Roland bn20 user with banding issuses

Post by mrtn » Sun Aug 27, 2017 6:40 pm

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