Unknown Printer

How to Identify and Fix Common Problems ?

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

Select the Start button, then select Settings > Devices > Printers & scanners . Under Printers & scanners, look for your printer. If you see your printer listed, you`ll know it`s installed. If you don`t see your printer listed, select Add a printer or scanner.
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.
Select the Start button, then select Settings > Network & Internet > Wi-Fi. Under Related settings, select Change advanced sharing options. In the Advanced sharing settings dialog box, expand the Private section. Next, under Network discovery, select Turn on network discovery.
Printers show up under “unspecified” when Windows cannot associate an appropriate driver. Reference this article to find drivers for your Brady printer: How to Find Windows Printer Drivers for Your Brady Printer. If you have recently installed the driver, simply rebooting your PC can resolve the unspecified status.
If the printer is wireless, the router`s built-in firewall may be blocking the printer`s IP address as an unrecognized device; you may need to temporarily disable the firewall in order to register or add the address to the router`s trusted device list, also known as a whitelist.
1. On the printer display home screen, select the “set up” button (it looks like a gear). 2. Select “settings” > “device settings” > “reset settings” > “reset all” > “OK” and then “Yes.”
Select Start > Settings . Go to Devices > Printers & scanners > select a printer > Manage. Then select Set as default. If you don`t see the Set as default option, the Let Windows manage my default printer option may be selected.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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 6MP wont feed paper
ANSWER : I had a similar paper pickup problem on laserjet 6mp. The printer would go through start-up sequence fine but when it received a print job you could here the main gears/rollers turning but no clicking from paper pickup solenoid, then eventually error lights would come one . I incorrectly assumed it was an error with the paper pickup mechanism and wasted a whole day taking the printer apart and replacing the paper pick mechanism. Long story short, if I had bothered to figure out the secondary error light codes from the start, I would have realized it was just a bad fuser and would not have wasted so much time.

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Laserjet 4250 print quality issue (see image)
ANSWER : It looks like a fuser problem. One way to prove it is with the half-stop test. Put a sheet in the drop down manual feed tray. Send a print job and watch the paper. When the end of it is about to enter the printer, open the lid and take out the toner cartridge. Look at the printed image. If it looks OK, then it is a fuser problem. If not, then it is a toner cartridge issue since it hasn’t gone through the fuser.

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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 M3035xs RFU Upgrade
ANSWER : There’s no way.

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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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Paper Jam 13
ANSWER : Sticky paper pickup solenoid. Since MF tray doesn’t use it, it works fine. Solenoid is located on right side of printer at the end of the paper pickup roller shaft. You need to remove the solenoid, take the plate and spring off the top and then scrape off the gooey residue that’s causing it to stick. Then you get a thin piece of sticky backed felt and put it on top of the metal base. You can find some at the local hardware store, they’re used on the bottom of chair legs.

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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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Unknown Printer