Lines in photos

[julieaitken]

I just got the HP Photosmart 7510 all in one for Mac OS day before yesterday.  It is set up with wireless connection and everything seems to be fine except for lines in my photographs.  They are evenly spaced vertically on the 4x6 photo paper.  I have aligned the cartridges, cleaned them, printed out the print quality diagnostic report.....everything looks like it is supposed to.  I can print from word just fine.  I printed a photo with a mat on it and the lines are not on the mat,  just in the photo.  I don't know what else I can do.  Any suggestions?  I checked to make sure the cartridge vents weren't clogged also.

[Shirlzz1]

Here is a link to a document that goes over troubleshooting print quality issues on a PS 7510 printer.  I am pulling another link out of that document to make sure it is noticed because it is listed halfway through the 1st link. It is  dealing specifically with vertical lines in printouts. I am listing it separately because I want to make sure that it is not missed or forgotten after the troubleshooting in the other link has been followed.  Here is that second link http://bizsupport1.austin.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02911268