Lines on prints

[Monique Graham]

Hello,

With a recent batch of prints, some of them came back with these strange lines on them. But only about half of them.  They are 6x4" prints on fine art paper.  When you look at the print in landscape orientation the lines run vertically but only on parts of the image, mainly the shadows.

Any ideas on what might be causing this?  Is it my files or the printing process?

Files saved as 6x4" 300dpi

Thanks!

[Damien Symonds]

Hi Monique, do you mind sending me the exact print files that you sent to the lab, so I can take a close look at them?

[Monique Graham]

Sure, here they are:

[Damien Symonds]

No, actually send them to me please.  Via the link I gave.

[Monique Graham]

Sorry, yep...just sending now

 

[Damien Symonds]

Your files are perfect, I promise.  This is not your problem.  You can legitimately demand reprints.

[Monique Graham]

Phew, thank you!  

Do you have any idea what might be causing it?  Never seen this before!

[Damien Symonds]

Well, generally it's caused by poor maintenance of the printer.

[Monique Graham]

Thanks Damien, will ask for reprints. 

[Damien Symonds]

What did they say?

[Damien Symonds]

@Monique Graham?