Have you ever left your printer for a while and not used it?

Perhaps only over the weekend, only to find when you start it up again it has poor print quality.

This is caused by ink drying out in the print head.

Go to control panel and select printers.  Right click on your printer and select printing preferences.  Then within preferences you will find maintenance or something like it.

Now select “clean print head”.

In most cases this will solve your problem.