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What This Error Means

Error 117.370 on Lexmark printers indicates a paper jam or blockage detected by the paper exit sensor, often near the fuser unit.

Detailed Explanation

The 117.370 error code on Lexmark printers specifically points to an issue with paper passing through the exit sensor, typically located after the fuser assembly. This means that the printer expected paper to reach or clear this sensor within a certain timeframe but did not detect it, or detected it for too long, suggesting a jam. The fuser is the component that uses heat and pressure to bond toner to the paper, so any jam in this area can lead to crumpled, creased, or partially fused pages. Common causes for this error include actual paper obstructions, such as torn pieces of paper, staples, or foreign objects lodged in the paper path near the fuser or exit rollers. Less obvious causes can be worn-out or dirty exit rollers that fail to grip and eject the paper properly, or even issues with the paper itself, such as using incorrect paper weight, curled paper, or paper that is too moist. Occasionally, a faulty exit sensor or a problem with the fuser unit itself could trigger this error, even if no physical jam is present.

DIY Troubleshooting Steps

Try these steps before calling a specialist

1
Turn off the printer completely and unplug it from the power source to prevent accidental injury or damage.
2
Open all accessible covers and trays, including the rear access panel, duplex unit (if applicable), and any top or side covers that provide access to the paper path.
3
Carefully inspect the paper path, especially around the fuser unit (often a hot component, allow it to cool if recently used) and the exit rollers, for any visible pieces of paper, foreign objects, or debris. Gently remove anything you find, pulling in the direction of the paper path.
4
Check the paper tray to ensure the paper is loaded correctly, not overfilled, and that the paper guides are snug against the stack without being too tight. Fan the paper stack to remove any static or sticking pages.
5
Close all covers and trays securely. Plug the printer back in and power it on.
6
Print a test page from the printer's menu to see if the error clears. If the error persists, try printing from a different paper tray or with a different type of paper if available.
7
If the error still occurs, try resetting the printer by unplugging it for at least 1-2 minutes, then plugging it back in and powering it on again.

When to Call a Specialist

You should call a specialist if, after performing all the DIY troubleshooting steps, the error 117.370 persists. This indicates a more complex issue, potentially involving a faulty fuser assembly, damaged exit rollers, a defective paper exit sensor, or internal electronic problems that require specialized tools and expertise to diagnose and repair. Attempting to disassemble internal components beyond user-accessible areas can void warranties or cause further damage.

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LEXMARK Error Code 117.370