Hi, lately I have noticed that when I print graphics on my LaserJet 400 Pro, the black sometimes prints nice and dark, and other times lighter, with a grayer look. Today I printed a Photoshop file in the morning and it looked great, but when I did it again later, having changed none of the settings, the black was noticeably lighter.
Whether the printer is warmed up or just turned on, black still varies from day to day and print to print. There is plenty of toner, and I ran the cleaning process but it hasn't helped. Any suggestions?