Epson Printer white banding

Hi guys, I've searched entire internet trying to resolve my issue, but I've had no luck.

Last year I bought an Epson wf 7610 I use to print A3 photographs for my business, it seemed to perform fine, until recently it's starting to give some white banding marks across the images, most notably on images with large red sections. I performed hundreds of alignments, unchecked fast printing, but nothing work, so i assumed it was near the end of its life since I've used it 3000 plus times, i decided to purchase a new one.

I went for the wf 7710, I took it out the box and set it up, straighy of the box the alignment is horrendous, white banding across the the page, I performed a couple of alignments and it sort of made them disappear, but after a few prints they were back along with a "Scratching" type pattern across the page where it was just leaving white marks.

I've sent this one back to Amazon and I'll be receiving a replacement tomorrow, I was just wondering do printers come with perfect actually come with perfect alignment or are my standards too high? The horizontal check showed deep white lines through almost every box.

Also, if anyone has any suggestions on how I could fix my old one of be more than happy to try them out.

Thanks in advance.