Unknown Printer

How to Identify and Fix Common Problems ?

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

If the error message, Unknown device appears, this can indicate that there is not adequate power and the PC can not identify the printer correctly. Verify that there are no extension cables and that the power cable is no longer than five meters. Reseat the power cables.
If your USB printer is not found by the HP Smart app, make sure Windows is up to date, check for USB connection issues, and then reinstall the app. Note: An HP+ or eligible printer cannot enroll in HP Smart Advance or Instant Ink using a USB connection.
To be specific, you should make sure that your printer has sufficient paper, ink or toner and without paper jam. If the printer cartridge`s status is faulty, you should replace it with a new one. After carrying out these operations, check if the HP printer can print properly. If not, try other methods immediately.
Updated: 10/11/2021 by Computer Hope. An unknown device is a device name listed in Device Manager that Windows cannot identify or doesn`t have the appropriate drivers to be recognized.
If you see an “unknown accessory detected near you” message (or similar), it means there`s an item compatible with the Find My network that might be traveling with you. If so, its owner may be able to see your location. You should look to see if something you`re borrowing has such a device attached.
Start by checking your hardware

If you`re using a wired printer, make sure that the printer cable is properly connected from the printer to your PC. For wireless printers, check the wireless connection. Make sure the printer`s wireless option is turned on and available.

Make sure the printer is near the Wi-Fi router, paper is loaded in the main tray, and that it is turned on. On your Windows computer, open Printers & Scanners and delete the printer. Open the HP Smart app, and sign in. If you do not have HP Smart, download it from 123.hp.com or your app store, and create an HP account.
Open Device Manager. Right-click Unknown device and click Update Driver Software. Select the `Search automatically for updated driver software` option, then Windows will install the new driver automatically.
A simple way to identify an “unknown device on a network” is through the command-line interface (CLI) of your computer system. Operating systems such as Windows, Linux, and macOS have their own set of networking commands such as “ipconfig” and “ping” for basic scanning and troubleshooting.
To include hidden devices in Device Manager display, select View and select Show hidden devices.
Go to your Google Account:

You might need to sign in. Under “Security,” select Sign-in & security. Select Devices. Next to the device you want to remove, select More Remove device.

If the LabelWriter appears as Unspecified or Unknown in Devices and Printers on Windows, it usually means that the computer has not identified that device as a printer yet.
Open the start menu and select Control Panel > Administrative Tools > and choose the Services icon. Locate the Print Spooler service and right-click. Then select the option to “Stop” the service.
Check cables or wireless connection

Make sure that the printer`s USB cable is properly connected from the printer to your PC. If your USB isn`t recognized, see Automatically diagnose and fix Windows USB problems. Check the wireless connection (for wireless printers).

Open the start menu and select Control Panel > Administrative Tools > and choose the Services icon. Locate the Print Spooler service and right-click. Then select the option to “Stop” the service.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP DESKJET 1280 ERROR
ANSWER : Help please! Printer power and paper lights continue to flash,- even after : encoder strip cleaned, carriage rod lubed, carriage is not stuck, rollers cleaned, no paper jambed . I know this is a variation on an existing theme, but could anyone help solve the issue.Many thanksKen

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Unknown Printer

HP DeskJet 722C Paper Feed Problem
ANSWER : Detach the force string from the holding nothing back one and expel all paper from it.

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Unknown Printer

hp deskjet 3420- system error
ANSWER : Hi I am having problem in printing from java file , I followed all your steps but C:\\WINDOWS\\system32\\spool\\drivers\\w32x86\\3 after this I am getting no files in this folder ,please help me as I am struggling to get print from java since a week

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Unknown Printer

HP DeskJet 1220C Prints only Pink & Black
ANSWER : hi everyone. i have an hp ink advantage 5525 all-in-one. changed all cartridges as they were empty and when i tried to print i got blank pages. i gave a print order a couple times to find out what was going on and found out that yellow and magenta inks worked but not cyan and black. removed cartridges, clean and all many times and nothing happened. then i tried this youtu.be/f57jOGj-G5s and the print quality of magenta and yellow improved significantly but still no black or cyan at all. i can’t do the running water thing because the print head is not detachable. any suggestions?

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Unknown Printer

HP Deskjet 1120C
ANSWER : I have just experienced a similar problem after cleaning out the ink build up without removing the outer case. The two lights are flashing and the ink cartridges end up on the far left after jumping back and fore a few times.

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Unknown Printer

HP Deskjet 5150
ANSWER : Ok I have the same problem, Kemal. HOW DO YOU DISASSEMBLE the printer carriage and the Ink Service Station from that??

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Unknown Printer

HP DeskJet 950C Leaking Ink
ANSWER : Thanks for the “loose, white rectangular piece” comment in my 990cse. I found this same white piece of rubber today jamming up the cleaning station carriage assembly and was wondering where it came from!

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Unknown Printer

HP deskjet 460 Waste ink tank full
ANSWER : I worked fixing printers for 5 years for Verizon and some of the older printers were notorious for the waste receptacle filling and overflowing with ink. My solution was good old warm water. Remove the waste container and scoop out as much as you can with a small screwdriver, wiping the discard on a paper towel, then just run warm water from the faucet into the container till all the residue is removed. This is just water soluble ink folks, if you want to test it, scoop out a glob and dissolve it in warm water, its easy as pie. I never once bought a new ink discard reservoir. I just cleaned out my mobile 460 printer reservoir by the same method. There are no electrical connections its just all plastic.

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Unknown Printer