VS640i media shifts

Warranties, repairs and maintenance
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AlexC
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VS640i media shifts

Post by AlexC » Fri Jan 12, 2018 7:40 pm

Hi there, when doing print and cut with artworks longer than two metres, the media moves aside then the print is not correctly aligned. Under 2 mts it would work fine, 3-4 mts length printing then the media will move away on the left hand side. I've checked the Pinch Rollers they are good. Checked the levelness of the Printer - looks pretty good.
Still the media moves apart.. Any idea??

Yours,

Alex

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Kai Perry
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Re: VS640i media shifts

Post by Kai Perry » Mon Jan 15, 2018 10:59 am

Slow down the upspeed, this will allow the tracking to be more precise. The accuracy over 3-4 metres is improved by slowing the speed of cutting as well.

You say you have check the rollers, but check to see if the media pulls forward by hand when it is loaded.

Also try a different media, in case the media is slipping, you can test this by marking the bed and media.
Kai Perry
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Roland DG (UK) Ltd
http://www.rolanddg.co.uk

AlexC
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Re: VS640i media shifts

Post by AlexC » Tue Jan 16, 2018 2:51 am

Hi Kai,

Upseed already set to 15cm/s.Will reduce it some more, I've reduce the problem considerably by adding more pressure on the pinch rollers, the media slips 0.5mm on 3m20 artwork which looks fine.
Regards,

Alex C

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mrtn
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Re: VS640i media shifts

Post by mrtn » Tue Jan 16, 2018 8:00 am

Cracked/worn pinch roller frames, distorted torsion beam.

Do you by any chance leave media loaded overnight often?
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AlexC
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Re: VS640i media shifts

Post by AlexC » Wed Jan 24, 2018 7:22 am

Yeah sometimes media is kept loaded..

Cracked pinch roller frames. will check this out..

Distorted torsion beam you mean the square shaft?

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mrtn
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Re: VS640i media shifts

Post by mrtn » Wed Jan 24, 2018 3:50 pm

Yes.
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