Unknown Printer

How to Identify and Fix Common Problems ?

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

Check the printer connection status: Make sure the wireless signal is on, and the printer is connected to the same network as your computer or mobile device. If your printer has a light next to a Wireless icon or button , make sure the light is on. If it is off or blinks the printer is disconnected from the network.
First, you can run the printer troubleshooter to repair printer icon missing. Step 1. Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters. Then click the Printer option and select Run the troubleshooter.
The problem of the printer icon not displaying in devices & Printers is frequently resolved by downloading and installing the most recent printer driver. If your printer drivers are out of sync, they may not function until you download and install the latest update.
Your printer`s driver is missing or was never installed correctly. Your printer`s driver is corrupted. Your printer`s driver isn`t compatible with your system. Your printer`s driver is not up-to-date.
In the Devices and Printers window click on Add a printer. Choose “Add a local printer or network printer with manual settings”, then click Next. Select Create a new port and choose Standard TCP/IP Port, then click Next. Under Hostname or IP address: Type in the IP address of the printer you intend to connect to.
What is an IP address (Internet Protocol address)? An Internet Protocol (IP) address is a unique numerical identifier for every device or network that connects to the internet. Typically assigned by an internet service provider (ISP), an IP address is an online device address used for communicating across the internet.
To connect your phone via the Default Print Service, go into the phone`s settings, search for “printing”, then select it from the results. Next, tap Printing in the list of Connection preferences, select Default Print Service and turn it on. A list of compatible printers on the network should appear.
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.
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.
In Windows, search for and open Add a printer or scanner . Click Add a printer or scanner, and then wait for Windows to locate available printers. If your printer is found, click it, and then click Add device to complete the driver installation.
Windows 10: Right-click and select Control Panel > Hardware and Sound > Devices and Printers. Right-click your product name and select Printer properties. Windows 8. x: Navigate to the Apps screen and select Control Panel > Hardware and Sound > Devices and Printers.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Toner cartridge full, printer displays: "empty needs replacing"
ANSWER : I once went to a customer who had a similar issue. They had installed new cartridges and judging from the box, they looked OEM. Strange thing was they felt empty when lifted and they were missing the chip on the outside that tells the printer it is installed and keeps track of how many copies were printed with that cartridge. The printer has no other way of knowing if the cartridge is full or empty.

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Unknown Printer

4F displayed on Brother 990CW printer?
ANSWER : That’s a printhead error.

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Unknown Printer

Display blank
ANSWER : I think PCA just means Printed Circuit Board Assembly, it can also be listed as PCB but either way it’s the same thing.

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Unknown Printer

LED display is blank
ANSWER : Check the connections to the display and the DC controller. Could be either a bad controller or a bad display. Unfortunately, you can’t swap either with your HP 4.

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Unknown Printer

HP Laserjet 4 Plus LED display dim
ANSWER : My HP Laserjet Plus’s LED display went blank around 6 weeks ago. It had been acting strangely for about a month, when ready, instead of the usual 00 READY it would display 000READY, which got my attention. Well, it suddenly went entirely AWOL. The service manual said to check:

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Unknown Printer

Flashing Lights & no display
ANSWER : Since it’s kind of old and there aren’t any parts available, you should probably go looking at replacement models. Saw a similar model (Canon) at Walmart’s this week that was wireless for $49.

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Unknown Printer

Alphanumeric display not functioning.
ANSWER : If it’s not doing the engine test, then the formatter board is out of the picture since that is the only thing not checked by the engine test. The display is powered by the DC controller. That would be the first thing to try.

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Unknown Printer

Blank Display
ANSWER : Most likely cause would be the controller board. That requires a little bit of disassembly to get out. Around $100 or so for the part.

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Unknown Printer