Printer Setup, Software & Drivers

Please can someone tell me what I am looking for in the alignment printout? Perhaps it's my astigmatism but I can't see any difference between the visibility of the 'smaller lines' in each row.   This task is proving impossible, frustrating, and has now stalled my working time for over an hour.  And I have a class to teach tomorrow.   And no Technical Support.

Is it a question of the faintness of the lines or are we identifying the block in each row in which the small lines are less visible because they coincide with the other lines.

This is a new printer but I've been using HP printers for many years so I'm familiar with the old alignment procedure.   I certainly wasn't expecting this level of a leap, nor one which could create difficulties every time I change cartridges, which seems, from my googling this problem, to arise every time cartridges are replaced.  Though mine let me get a good number in, before it sent me to my recalcitrant printer.  (I'm just glad I use Instant Ink, or that would be more frequent than it's going to be.)

The "problem at the printer" turns out to be, via HP Smart, that I need to align the cartridges.  A sheet is printed from which I need to identify the block in each row whose lines are the "least visible".   I sought help from the only other adult in the house who lost his "good" eye 2 years ago, and is only marginally more able to identify the 'least visible' lines for me with the other. 

The Virtual Agent was abysmal on this.