Hello SocSciSec,
Welcome to the HP Forums! I understand your concerns with your Laserjet P1606dn.
Please make sure this printer is plugged into a direct wall, not a surge protector. This step will test out the power and to verify if you are experiencing the same issue.
Also, try Resetting the Printer.
Make sure you have followed this HP document on Troubleshooting Print Quality Issues.
Looking forward to hearing from you.