HP LaserJet 4

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

An Er/04, Er/05, or Er/06 error message indicates paper is jammed inside the printer. To resolve the issue, find and clear the printer of any jammed paper, or reset the printer if the printer has no jammed paper.
The printer is either low in toner, the density is set too low, or the Economode may be turned on. Remove the toner cartridge and shake it. This will redistribute the toner and often will temporarily solve the problem. However, this usually indicates it is time to install a new cartridge.
Make sure your devices are properly connected with each other, and the network or the cable you use to connect these devices is normal. You can also try restarting your HP printer. Turn it off completely and unplug the power cord, leave it for a couple of minutes, and then plug the cord back and power on the printer.
Error code E04 means that the FINE cartridge in your printer is not installed correctly. To remove the cartridges you will need to push the output tray back in before opening the cover.
What is this? MW2 error code 2004 relates to a problem that occurs during matchmaking for an online game, stopping you from playing multiplayer. The full error message when this happens states, “A matchmaking lobby error has occurred.
From the control panel go to : setup menu>printer maintenance and then select either cold reset or factory reset. cold reset: Resets printer to out-of-box condition, startup questions like self or IT managed will appear are initial prompts again.
Open HP Smart app, click your printer, click Printers in the top menu bar, and then click Diagnose & Fix. Follow the instructions if any issues are found. If you still can`t print, remove and re-add the printer.
The Print Spooler is software built into the Windows operating system that temporarily stores print jobs in the computer`s memory until the printer is ready to print them. In some circumstances you may need to stop and/or restart the service.
In Event Viewer dashboard, click Applications and Services Logs –> Microsoft –> Windows –> Print Service –> Operational. Double click Operational. All print events can be viewed here.
A soft 404 error is when a URL that returns a page telling the user that the page does not exist and also a 200 (success) status code. In some cases, it might be a page with no main content or empty page.
Error coding is a method of providing reliable digital data transmission and storage when the communication medium used has an unacceptable bit error rate (BER) and a low signal-to-noise ratio (SNR).
Recommended action. Turn the printer off, wait 15 seconds and turn the printer back on (using the power switch located on the back of the printer). The error code should not appear again.
A specific print job that is not correctly formatted for the printer or that is not correctly processed by it can trigger a 79:04 system error.

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