HP manual Tools for troubleshooting, Continuous self-test HP LaserJet P2050 Series only

Tools for troubleshooting

The section describes the tools that can help you solve problems with your device.

Continuous self-test (HP LaserJet P2050 Series only)

The continuous self-test puts the device into a continuous printing mode without having to send jobs to it.

1.Confirm that the product is in a Ready state. Press OK to enter the main menu.

2.Simultaneously press and hold the down arrow and Cancel button .

3.Press OK to re-enter the main menu.

4.Navigate to the secondary service menu.

5.Select Service Reports and then Cont. Self-Test.

To terminate the continuous self-test, press the Cancel button .

Half self-test functional check

The half self-test check determines which printing process is malfunctioning.

1.Print a Configuration page.

2.Press the print-cartridge-door button after the paper advances halfway through the product (about five seconds after the motor begins rotating). The leading edge of the paper should have advanced past the print cartridge.

3.Remove the print cartridge.

4.Open the print cartridge drum shield to view the drum surface. If a dark and distinct toner image is present on the drum surface, assume that the first two functions of the electrophotographic process are functioning (image formation and development). Troubleshoot the failure as a transfer or fusing problem.

If there is no image on the photosensitive drum, perform these checks:

1.Make sure you removed the entire length of the sealing tape from the print cartridge before you installed the cartridge.

2.Perform a drum rotation functional check to make sure that the drum is rotating.

3.Perform a high-voltage contacts check.

Drum rotation functional check

The photosensitive drum, located in the print cartridge, must rotate for the print process to work. The photosensitive drum receives its drive from the main drive assembly.

NOTE: This test is especially important if refilled print cartridges have been used.

1.Open the print-cartridge door.

2.Remove the print cartridge.

ENWW Tools for troubleshooting 193