HP Laserjet 3015 - Printed pages are VERY light

Print a couple of pages. As the printer is printing open the toner cover. Pull the toner cartridge out and look down at the paper. If the printing looks good the fuser probably needs replacing. Before doing that, have you checked the toner cartridge.

is the toner cartridge original or reffiled.
Try with original one.
check if the image you print is correct printed on drum
to do this print something and when the printer start to pull the paper stop the printer by open a door. then pull out the toner cartridge and look the drum if the image seems ok If you see bad image you have problem with laser scanner or charge of drum.

To adjust the default lighter/darker setting

1. On the LaserJet 3015, press MENU/ENTER.

2. Use the < or the > button to select Copy setup, and then press MENU/ENTER.

3. Use the < or the > button to select Def. Light/Dark, and then press MENU/ENTER.

4. Use the < or the > button to adjust the setting. Move the slider to the left to make all of the

copies lighter than the original, or move the slider to the right to make all of the copies

darker than the original.
5. Press MENU/ENTER to save the selection.

Page 48 of the User Guide has instructions for adjusting the light/dark setting during a copy job.

Also see the Troubleshooting section of the User Guide for other possible reasons for light/faded copies.

If your copies continue to come out too light, you may need to clean the insert a new toner cartridge or change brands of toner. I tried several "generic" toner cartridges and refills, but my prints and copies were always faded or streaky. After going back to genuine HP cartridges, I haven't had any print quality problems.

It is not possible to see how many pages you printed with your current cartridge.

I had a similar problem, it turned out to be a cheap toner cartridge. Replaced it with an HP cartridge and have had any problem since.

Try going into the Maintnence Center, should be in Options or Maintanence and running it.

I need a bit more information. Does it print at all or just does'nt copy?
If it does'nt print at all the problem is generally the toner cartridge. Have you tried changing the cartridge?

It is either a bad drum in the toner cartridge or toner on the fuser. Try changing out the toner. If the problem remains, you'll have to get a new fuser module.

Try to change toner cartridge, I had this happen with my old laserjet 5, and it was a faulty cartridge on mine.

the shadow-like copy of text is definitely coming from a faulty tone cartridge, replace it and you will have your solution,

the verical lines are caused by a dirty optical lens which is located under the keypad, just lift that up and you will see a glass bar that is likely dirty, clean it well and this should solve this problem as well