The following question was marked as opinion based. As a result, it was closed and the author deleted the post before I could even give a factual answer.

https://superuser.com/questions/1866778/can-someone-identify-potential-issues-with-my-hp-laserjet-pro-m402dn-printer

They give a photo which clearly shows that ink is not transferred to the paper, which means that the fuser doesn't get warm enough to burn the ink onto the paper.

Some people may mistaken the fuser for the drum and therefor say that it is clean, but the photo of the print itself tells the whole story already.

And if it were the drum, then the printer would have ink spots at the same places throughout the print.

So: too much ink, drum, too little, fuser.

The following question was marked as opinion based. As a result, it was closed and the author deleted the post before I could even give a factual answer.

https://superuser.com/questions/1866778/can-someone-identify-potential-issues-with-my-hp-laserjet-pro-m402dn-printer

They give a photo which clearly shows that ink is not transferred to the paper, which means that the fuser doesn't get warm enough to burn the ink onto the paper.

Some people may mistaken the fuser for the drum and therefore say that it is clean, but the photo of the print itself tells the whole story already.

And if it were the drum, then the printer would have ink spots at the same places throughout the print.

So: too much ink, drum, too little, fuser.