Unknown Printer

How to Identify and Fix Common Problems ?

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It may be caused by a printhead latch not being securely fastened. See Replace printheadsReplace printheads. It may be caused by a cable that has become loose inside the printer. If none of the other remedies works, call HP for assistance.
The Wireless light blinks when the printer is attempting to connect to the wireless router or access point. Wait a few minutes, and then check the light again. If the Wireless light is on and steady, the printer is connected and you can stop troubleshooting.
A blinking Attention light indicates that paper might be jammed inside the printer. note: Paper jams can be real or false. The printer might report a paper jam even when there is no jammed paper.
Ink may have run out (The lamp on the ink tank flashes). If printing is in progress, you are recommended to stop printing, replace the ink tank, and then print again.
The Power light blinks at a steady interval when the printer is processing a print job. If the Power light blinks fast, the ink cartridge door might be open, or the printer might be in an error state. If an error message displays on the computer screen, follow the on-screen messages to resolve the issue.
Restart your computer, and then immediately press the F11 key repeatedly. Click Start . Press and hold the Shift key, click Power, and then select Restart while holding the Shift key. Continue holding the Shift key while the computer restarts.
A blue or green light indicates the printer is operating correctly, while a red light indicates an error has occurred.
If your router is blinking orange, it is likely getting an upgrade and you should give it time before doing anything. However, if your internet is unavailable or slow, it can get stuck and the blinking will not stop. Resetting the router and the modem normally resolves the problem and restores the connection.
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.
Troubleshoot a blinking orange light on HP DeskJet.

It indicates firmware issues, paper jams, or improperly installed cartridges. Resolve it by performing a power reset of your printer. Take out the installed cartridges. Disconnect the device by removing the power cord from the outlet and the rear end.

Seeing a yellow triangle with an exclamation mark usually indicates that a hardware device needs to be updated. If you are seeing the mark in Device Manager, we recommend checking the device status of the printer driver.
Similarly, the yellow light indicates the printhead is clogged and it`s time to clean it. The printer can not spray ink onto the paper if the printhead is clogged with dirt and residue.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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

Flashing Amber light
ANSWER : Make 1) check that the back of tray that is adjustable is against the paper and 2) the paper sensor for the tray moves freely – if it gets stuck it will cause that error.

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LaserJet 2200d Stopped Working
ANSWER : I am able to print a demo page and no lights blinking, tried different slots to no avail

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Unknown Printer

All lights on printer staying on continuously
ANSWER : If all lights are on continuously the initial indication would be the EIO card needing to be reseated, the connection is bad, or it has failed.

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Unknown Printer

HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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Unknown Printer

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

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Unknown Printer

Tray 1 light
ANSWER : Please disregard and delete the post if possible, it was a software problem.

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Unknown Printer

Paper feed
ANSWER : Judging by your other post, you must have read that you need to remove the laser scanner assy and lubricate the spinning mirror shaft. Good luck.

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Unknown Printer