PrinterSpecialists.org

What This Error Means

HP Error 22 typically indicates a problem with the printer's scanner assembly or, less commonly, a memory malfunction.

Detailed Explanation

HP Error 22 is a diagnostic code that points to an internal hardware issue, most frequently associated with the scanner unit in multifunction printers (MFPs). This could manifest as the scanner light not moving, making unusual noises, or simply failing to initialize. The printer's internal diagnostics detect that the scanner is not responding as expected or has encountered an unrecoverable fault during its power-on self-test or during a scan operation. While primarily a scanner error, in some older or more basic models, this code can also occasionally signify a problem with the printer's internal memory (RAM) or its communication with the main formatter board. The root causes for a scanner failure can range from a simple obstruction preventing the scanner lamp carriage from moving freely, a loose data cable connecting the scanner assembly to the formatter board, a faulty scanner lamp, or a complete failure of the scanner motor or control board. If the error is memory-related, it might be due to a corrupt firmware update, a faulty memory module (if upgradeable), or an issue with the main formatter board itself. The printer will usually cease all functions, including printing, when this error is present, as it's a critical internal component failure.

DIY Troubleshooting Steps

Try these steps before calling a specialist

1
Perform a hard reset: Turn off the printer, unplug it from the wall outlet for at least 60 seconds, then plug it back in and power it on.
2
Check for obstructions in the scanner path: Open the scanner lid and carefully inspect the glass and the path where the scanner light travels for any paper scraps, debris, or foreign objects.
3
Clean the scanner glass and underside of the lid: Use a lint-free cloth and glass cleaner (applied to the cloth, not directly to the glass) to ensure the scanner glass is spotless.
4
Reseat the scanner cable (if accessible): For some models, the scanner's data cable might be accessible by opening a cover. Power off and unplug the printer, then gently disconnect and reconnect the cable on both ends if possible.
5
Update printer firmware: Visit the HP support website for your specific printer model and download the latest firmware. Follow the instructions carefully to update it, as this can sometimes resolve software-related hardware communication issues.
6
Attempt a factory reset: Consult your printer's manual for instructions on how to perform a factory reset. Be aware this will erase custom settings, but can sometimes clear persistent errors.
7
Test scanner functionality: If the printer powers on without the error, try initiating a copy or scan job directly from the printer's control panel to see if the scanner operates correctly.

When to Call a Specialist

If you've performed all the DIY troubleshooting steps, including hard resets, checking for obstructions, and updating firmware, and the HP Error 22 persists, it's time to contact a professional. This error often points to a physical hardware failure within the scanner assembly (e.g., a broken scanner motor, lamp, or control board) or a more complex issue with the main formatter board or internal memory. These components typically require specialized tools, diagnostic equipment, and technical expertise to replace or repair, which is beyond the scope of most users. Continuing to use a printer with a persistent hardware error can sometimes lead to further damage.

Find a certified printer specialist near you →

HP Error Code 22