Lines appear once printed but do not see them in the original file

So I sent this file to the printers ...( this is a photo the printer sent to show me what was happening ) looks fine on my computer but when they printed it these faint white lines appeared at regular intervals.
I saved the file in several different ways- jpg tiff pdf ..... uploaded it to the printer company several different ways. They insist that the print jobs before and after were
fine .... We tried four times. Adobe instructed me to do the update - that did not seem to help - although when I opened adobe up today it asked for another update.So I am wondering if the update really worked/happened last time. Any suggestions would be very welcome, I desperately need to resolve this issue as I am working on a major deadline !
