Hp 5000 laser printer printing with blurry streaks

SOURCE: number of pages tracking on daily basis in hp1018 laser printer

try Printer Test page
The Printer Test page contains information about printer driver and port settings. The page also contains information about the printer name and model, computer name, and so on.
You can print the Printer Test page from the printer driver.
is it on the network? login to the printer using http://<ipaddress of printer>
other option is to contact hp support online.

SOURCE: 8400 blurry print

I had a similar problem. I discovered that the imaging drum was too hot. There is a temperature sensor that rides on the drum surface to monitor the temperature. You can see it if you lift the exit cover on the right side. The sensor is white, and has a thin probe which rides on the drum surface. There's a single screw accessible from the right side which holds it in place. A hole on that side will allow a screwdriver (torx) to access the screw and the little unit can be removed (be patient- it can be done!). Clean the probe with some alcohol and replace it. The problem is caused when the ink on the drum smears because it's too hot. Dirt (wax and oil)under the sensor probe prevents contact with the drum, and makes the printer think the drum is too cold.

SOURCE: not printing in foxpro 2.6 dos to hp laser jet 1020

You write "type the above line at command prompt". I dont't know Where exactly to write? Can you tell me!

SOURCE: MFC-9440 CN Laser Printer is producing vertical color line streak

Colored vertical streaks - looks like a transfer belt problem, and it's not user fixable. You may need a new belt unit - you can find it for around US$ 80-120, but you may want to have a technician inspect the unit first, since it could arguably be the drum instead, and you don't want to fork around US$ 100 and replace the wrong part.
You can try showing a printer sample at a print shop; by looking at the streaks it is possible to diagnose drum, fuser or belt problems.
Here you find a much more detailed page, for another printer model, but the issues are mainly the same for most color printers:
http://www.laserquipt.com/support/idx/26/452/article/Toner-Smearing-Issues.html

SOURCE: My Brother SCP 7020 Laser printer is printing

Remove the drum and toner from the front cover of the machine. On the top right of the drum unit there is a tab that you can slide. Please slide it 20 times from left to right and bring it back to home position.