Unknown Printer

How to Identify and Fix Common Problems ?

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

Connecting using a network key or PIN

If your printer doesn`t have WPS, you`ll probably have to enter a `network key` – a series of numbers and letters – into the printer using the function buttons and screen on the printer in order to establish the connection between your printer and router.

Check the USB cable for damage and recommended length, and then restart your printer and computer. Turn off the printer and the computer. Disconnect the USB cable from the computer and printer, and then inspect the cable. If the cable is damaged or longer than 3 m (9 ft 10 in), replace it.
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.
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.
` HP+ printers are cloud-connected devices that must remain connected to the Internet in order to function. The Internet connection enables the printer to deliver HP+ specific app features and firmware updates. During setup, you must connect the printer to the Internet by Wi-Fi or Ethernet.
WPS Push Button Connect

First, push the WPS button on your printer. If there is no push button, go to the control panel and start the WPS pushbutton mode. Then, tap the wireless menu and then click WiFi protected setup. Then, go with the on-screen instructions to finish the setup.

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.
Remove and Re-Add Your Printer in Windows

If this happens, go to Settings > Devices > Printers & Scanners, select your printer, and remove it. Then click Add a Printer or Scanner to re-add it to the device list.

There are three main ways to connect your printer into your Wi-Fi network: using Wi-Fi Protected Setup (WPS), using the printer`s onboard Wireless Setup Wizard, or by connecting your printer to your computer via USB and using the supplied software to configure the wireless connection.
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.
Check Cables and Printer USB Ports

Check all cable connections (including the power cord) on the printer side. If the printer does have power and you`ve properly connected the communication cable, but the printer is still not recognized, try switching to a different USB port on the PC.

HP Smart app (Android, iOS): Open the app, tap your printer, and then tap Printer Information or Network Information to find the IP address. Most printers with a touchscreen display or menu: Open the Wireless Summary or Network Settings menu to find the IP address.
Some HP printers come with a feature called Wi-Fi Protected Setup (WPS) which allows you to connect the printer to a wireless network without the need for a computer or the network name and password. Note: If Enter the WPS PIN for your printer displays during a printer setup, click Cancel in the message window.
From any screen, you can select the start button at the bottom of the screen, then choose the setting icon. Next, select the network and internet option from the left-hand menu, and ensure the WiFi button is switched on. From the same screen, you`ll want to make sure that airplane mode is off.
Printers used to output documents from a computer do not require online access to operate. Provided the document or file to be printed is stored on a local hard disk drive or on the local network, it can be printed without a connection to the Internet.
Although most printers have wireless capabilities, some models have more connectivity options. Depending on what you`re using your printer for, you may prefer one option over another.
A wireless printer will still need a USB cable in case it needs to print in a location where Wi-Fi would not be available. Having a printer without a wire connection option can lessen the printer`s marketability.
Check to make sure the printer is turned on and connected to the same Wi-Fi network as your device. To find out if your printer is connected to Wi-Fi, see if your printer`s built-in menu has options for checking its Wi-Fi connection, or check the printer`s manual for instructions about how to add it to a Wi-Fi network.
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.
Restart devices

If your printer connects to a Wi-Fi network, disconnect your computer or mobile device from the network name (SSID), and then reconnect it to the same network name your printer is connected to. If the printer is available and has a ready status, the issue is resolved.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My 2550n Color LaserJet does not want to print in color
ANSWER : That model had issues with the carousel solenoid sticking. That might explain why it works after you let it sit for 10 minutes. The solenoid gets hotter with use which causes the deteriorated foam on it to become sticky and hold down the release plate instead of letting it go. This allows the carousel to spin when it is supposed to stop for each color. The solenoid is located on the right side of the printer. If you open the lid, it is just behind the opening at the top right. You need to remove the top of the printer and scrape off the goo on top of the solenoid body. I put a piece of thin sticky backed felt to replace it. Other people use electrical tape.

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Unknown Printer

evenly spaced horizontal lines on hp laserjet III printout
ANSWER : The lines would be a toner cartridge problem. Which paper tray? The MF tray or the optional paper cassette?

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HP Laserjet 4200 50.2 Fuser error
ANSWER : if you are using a good fuser the next part to try would be low voltage power supply

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HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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How to copy a card slot in HP laserjet 4250N
ANSWER : None that I know of, using a computer is likely your best option but I never attempted it.

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What repair needs to be done for a "50 needs repair" message on an HP Laserjet IIIP?
ANSWER : I don’t know what you mean by good toner cartridges. They haven’t been built in about 10 years, so if they are new OEMs in the box, they are guaranteed to fail. The 50 error on that printer is mostly a burned out fuser lamp. This site was sold, so as you can see, there are no more kits available.

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LaserJet 4 won't Power Up
ANSWER : I haven’t seen that particular behavior on that model. It either works or it doesn’t. My first choice would be the power supply.

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HP Laserjet M3035xs RFU Upgrade
ANSWER : There’s no way.

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Unknown Printer