Unknown Printer

How to Identify and Fix Common Problems ?

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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.

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.
Turn off the HP printer and unplug it from the power source. Also, shut down your computer and unplug any external devices. Wait for a few minutes and then plug in the printer and turn it back on. Finally, turn on your computer and check if the error state has been resolved.
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.
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.
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.
Select Start , then select Settings > Devices > Printers & scanners . Under Printers & scanners, find the printer, select it, and then select Remove device. After removing your printer, add it back by selecting Add a printer or scanner.
In the Windows Settings search box, type “Printer,” then select Add a printer or scanner. In the Printers & scanners page, select Add a printer or scanner. Select your printer when you see it appear, then follow any additional instructions to install the printer driver.
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.
Ghost prints happen when the drum or fuser unit within your printer become faulty. Because a fault with this element won`t heat the particles of the toner to a high enough temperature, the marks being made on the paper are much lighter in colour and appear more faded than typical documents.
Volatile memory requires power to store the information. Deleting volatile memory is easy: Simply shut down or unplug your printer for a minute or so. Most printers also have non-volatile memory (a hard drive) that is stored until you physically delete it.
In Windows, go to Printer Properties > Maintenance > Clean Heads > OK and follow on-screen prompts. On a Mac, check the Applications folder for a Utility application for the printer. To manually clean the printer, remove printheads and use equal parts water and isopropyl alcohol to clean them.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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

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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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Unknown Printer

HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

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HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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Unknown Printer

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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Unknown Printer

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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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 2200D won't print configuration page
ANSWER : Find someone with a HP LaserJet 4100 and you can configure the card to the IP you want:

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Unknown Printer