Unknown Printer

How to Identify and Fix Common Problems ?

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

Disconnect the power cord from the back of your printer.

Leave the power disconnected until at least 60 seconds has passed. If your printer has a numeric keypad on it, press and hold the # and 6 keys while you unplug the power.

Turn the product on while you press and hold the Resume button for 10-20 seconds. The Attention light turns on. Release the Resume button. The Attention and Ready lights cycle while the product restores factory defaults.
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.”
A factory reset will return your printer`s settings to what they were when it first came out of the box. This guide will help you reset your printer back to factory defaults.
How to do a hard reset on your printer. With the cartridges still installed, power down the printer and then unplug the power cord from the wall. Wait for a minute, then plug the printer back in and power it back up. Wait for the cartridges to center and then try printing again.
Turn the printer off then back on. If the issue persists, turn the printer off, unplug the power cord and then wait at least three minutes before plugging the power cord back in and turning the printer back on. If the issue persists, ensure the product is running the latest firmware available from HP.com.
Recommended action. Turn the printer off, wait 15 seconds and turn the printer back on (using the power switch located on the back of the printer). The error code should not appear again.
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.

Relevant Questions and Answers :

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ANSWER : To initialize: turn off – Press start and hold down while turning on, release after all three light light, you should see initialize disk hit check, and allow to boot.

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ANSWER : bonsoir

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Unknown Printer

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ANSWER : You can replace it by finding the slot of DIMM, where the existing HP4550N formatter board is installed. More info is available here

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Unknown Printer

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ANSWER : I held the # and 6 down long enough to start a complete re-set of the printer But the Black ink level still shows as depleted when it is actually still half full.

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Unknown Printer