HP LaserJet 9000

How to Identify and Fix Common Problems ?

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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.
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.
Among the more common technical issues that may bring down a printer are disconnected cables, malfunctioning routers, and low ink levels. Moreover, software problems such as interrupted connections or incorrect settings in your system`s drivers can also cause your printer to show up as offline.
If your printer`s status displays “Printer in error state,” there may be a problem with the printer itself. Make sure the printer is turned on and connected to your PC by Wi-Fi or cable. Check it for low paper or ink, and be sure the cover isn`t open and the paper isn`t jammed.
Most printers will stop working when they`re out of paper, ink or toner, or if the unit detects an issue with the ink or toner cartridge. When this occurs, you might receive an error message or notice blinking green or amber lights on your printer.
Paper Jams

This is a common laser printer problem. Primary causes include grime, dust, worn rollers, or incorrect paper weight. The most basic way to prevent paper jams is simply through regular cleaning of your printer. Also, replace parts as needed.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP ScanJet 9000 service manual required
ANSWER : Scanner write some numbers, How i can know that number’s mean?

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ANSWER : well ^%$#(&^%[[[[

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ANSWER : Try this link:

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ANSWER : Ensure that the printer is turned on and in the Ready state.

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Good toner cartridges still available for HP LJ 4V?
ANSWER : Try directpreciseimaging.Com in Calif. Don’t worry about resistance unless there is none.

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HP LaserJet 9000