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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.

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.

Status unknown means a circumstance where samples were scheduled to be taken by the regional water quality control plant and were not, samples were taken but not yet analyzed by the report due date or where a new discharger has yet to be sampled.

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.

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.

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.

Ghost printers are printers that continue to appear in Windows although they have not been used or installed on your system in a long time, which may have been years.

Click on Device Manager from the context menu. In Device Manager, click on View and select Show hidden devices. Next, expand the Printers section to view your printer.

Simply plug the USB cable from your printer into an available USB port on your PC, and turn the printer on. On the taskbar, select the Search icon, type Printers in the search bar, and then select Printers & scanners from the search results to open the Printers & scanners system setting.

Definition of unknown. as in unfamiliar. happening or existing without one`s knowledge unknown to me was the fact that while I was out, my family was hurriedly preparing a surprise birthday party. unfamiliar. unbeknown.

Synonyms of unknown (adj. obscure, mysterious) anonymous.

: a place, situation, or thing that is not known about or understood. explorers venturing off into the unknown. : a situation that one is unfamiliar with.

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.

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.

From Device Manager, right-click the problem device and go to Properties > General tab. The device status contains the current state of the hardware as seen by Windows. This should be the first step if you suspect that a device is causing a problem or if it has a yellow exclamation point.

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.

One way is through infected software. This happens more commonly when a printer is connected through a computer or a WiFi network, and installing infected software that way can cause it to get a virus.

In some respects, the signs that your printer has been infected with malware are similar to the general signs of a malware infection on your computer, the signs include unusual behaviour by your printer, such as not responding to your commands, printing unauthorised print jobs and refusing to install security updates.

Printers can serve as entry points for malware attacks. Hackers exploit vulnerabilities in printer software or firmware to install malicious software, jeopardizing the entire network`s security. Once inside your network, malware can spread to other devices, disrupt operations, steal data, or launch further attacks.

Your Printer Can Store Sensitive Data

Any confidential documents that pass through them, including medical records, credit card numbers, and social security numbers, are stored in the printer`s memory and can be retrieved by anyone who knows where to search for it. So don`t take this risk lightly!

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.

Remove any devices connected between the printer and computer (IE:USB Hub). Reseat the USB cable connecting the printer and computer by unplugging both ends, and plugging them back in.

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.