Vertical alignment very poor and seems impossible to fix

@epsonuser post an image of what a printed page looks like. that way we can see what you see and hopefully get you some idea on how to fix it. 在已经存在的问题里加入图片

@nick take a look at this one. See if you have an idea

The pics are of your vertical alignment.

Row 1 is alignment 1 so you have to pick the best vertical alignment.

So your row 1 i would pick number 4.

Row two looks bad but you will have to analyze which one looks best and then repeat. You should be at all 4’s when done

I am having this exact problem right now in my WF-7720 and my alignment pages looks just like yours. My printer is using sublimation ink. My nozzle check shows some broken lines so I am using a syringe and tube to put hot cleaning solution through each colour to try and get rid of any blockage. It helped me get line #4 to have solid boxes (it used to have the gaps between the vertical lines). But since then, I can see no change between alignment boxes. I changed the re-fillable ink cartridges to new ones and topped up each cartridge with fresh ink. Still no change. I print lots of purge sheets and they come out with some streaks, so my plan is to continue with the hot cleaning solution over the next month. If no improvement, I am guessing my printer head is defective maybe. After the cleanings and when I get ink flowing again, I try doing many vertical alignments but I can't tell aside from line 1 and 4 that there is any difference. If I get any new improvement, I will update here.

Hi All, I am back and I have just solved my alignment issue! I was having the same issues as the original poster with large gaps between the boxes that should be solid. This worked for me. Choose one line and ignore all the rest. So looking at the image above, I would pick line 3 for example. Run the print alignment. When it asks you to choose the best looking, ignore that. For all lines, except line 3 choose the number 4 (this keeps the current setting the same). For line 3, choose the number 7. Run the alignment again. Do these exact same steps (picking 7 for line 3 and 4 for the rest). Do this over an over and over. You should see the gap on line 3 starting to get smaller. For me, it seemed like picking 7 made the boxes move to the left. They moved in 'big' steps. As the line got close to becoming a solid box, I started choosing 6 or 5 to make the movements 'smaller'. Then I did this for all the other lines. It took a good 60+ alignments to do all lines. If 7 doesn't work for you try choosing 1