HP LaserJet 4000T

How to Identify and Fix Common Problems ?

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Restart the printer and the computer or mobile device to clear possible error conditions. Restore Wi-Fi setup mode. Most printers with a touchscreen display or menu: Open the Wireless or Setup menu, select Network setup or Settings, and then select Restore Network Settings.
Why isn`t my printer connecting to my computer? The causes are various. It`s likely that your USB cable is damaged or your printer`s not detected by your computer. Maybe there`s something wrong with your printer driver.
From the Home screen on the product control panel, touch the Setup button. Scroll to and touch the Network Setup menu. Touch the TCP/IP Config menu, and then touch the Manual button. Use the numeric keypad to enter the IP address, and touch the OK button.
Your printer should have been packaged with a USB cable regardless of whether it is a wireless or wired printer. Plug the cable into your printer and your computer`s USB port. The direct linking should trigger your computer to recognize the printer and start up the software needed to complete the installation.
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.
Turn the printer off (using the power switch at the back of the printer), wait 15 seconds and turn the printer on. The error should disappear; however, if the error does return, turn the printer off and plug the power cord into a different power socket.
To set up a printer for the first time, remove the printer from the box, connect the power cord, add printer to HP Smart, load paper, install the ink cartridges, and then align the printer. Note: If you are looking for the printer software, go to 123.hp.com.
Update the Printer Driver

Printer drivers are pieces of software that enable communication between your computer and your printer. The error code 0x00000040 could appear if your printer driver is out-of-date or faulty. Your printer driver may need to be updated in this situation to help with problem resolution.

Select the Start button, then select Settings > Devices > Printers & scanners. Under Add printers & scanners, select Add a printer or scanner. Choose the printer you want, and then select Add Device.
You will receive a prompt telling you to touch the checkmark on your printer display; if your printer does not have a touch screen, press the Information button on the printer. HP Smart will confirm when the printer is connected to the wireless network.
Connect the printer power cord to the printer and turn the printer back on. Disconnect the power cord from your wireless router. Wait 10 seconds before reconnecting it. It may take a few minutes for your internet to come back on.
Sometimes the printer may not be connected to the network, or your computer`s firewall might be blocking the printer. Also, if the printer is shared through another computer on the network, the settings on that computer may need to be modified.
Your printer should have been packaged with a USB cable regardless of whether it is a wireless or wired printer. Plug the cable into your printer and your computer`s USB port. The direct linking should trigger your computer to recognize the printer and start up the software needed to complete the installation.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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HP LaserJet 4000T