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What This Error Means

Error 117.370 indicates a problem with the fuser exit sensor, often caused by a paper jam or a faulty sensor in the paper path.

Detailed Explanation

The RICOH error code 117.370 specifically points to an issue with the fuser exit sensor, which is responsible for detecting paper as it leaves the fuser unit and proceeds towards the output tray. When this sensor fails to detect paper within an expected timeframe after it should have passed through, or if it detects paper continuously when there shouldn't be any, this error is triggered. This typically means there's a paper jam obstructing the sensor's path, preventing paper from reaching it, or a piece of paper is stuck on the sensor, making it constantly 'see' paper. Beyond simple paper jams, the 117.370 error can also signify a more complex underlying problem. It could be a dirty or obstructed sensor, where dust, toner, or small paper fragments are interfering with its operation. Less commonly, but more seriously, the sensor itself might be defective, or there could be an issue with the wiring connecting the sensor to the main control board. In rare cases, a problem with the fuser unit itself, such as incorrect temperature or roller issues, could indirectly lead to paper stalling and triggering this sensor error.

DIY Troubleshooting Steps

Try these steps before calling a specialist

1
Power down the printer completely, unplug it from the wall, and wait for at least 10-15 seconds before plugging it back in and restarting. This can clear temporary sensor glitches.
2
Carefully open all accessible covers and trays, including the front, side, and rear panels, as well as the fuser area (if user-accessible).
3
Thoroughly inspect the paper path, especially around the fuser unit and the exit area, for any visible pieces of paper, torn fragments, staples, or other foreign objects.
4
Gently remove any detected paper jams, pulling paper in the direction of the normal paper path to avoid tearing. Use a flashlight for better visibility.
5
Locate the fuser exit sensor (often a small lever or an optical sensor with a light emitter/receiver pair) and gently clean it with a lint-free cloth or a cotton swab, ensuring no debris is blocking it.
6
Check for any misaligned paper trays or paper that is not loaded correctly, as this can cause feeding issues that lead to jams near the fuser.
7
Ensure the fuser unit itself is properly seated and locked into place, if it's a user-replaceable component.
8
Close all covers securely, making sure they latch properly, as the printer will not operate with open covers.
9
Load fresh, appropriate paper into the trays and attempt a test print to see if the error has cleared.
10
If the error persists, try printing from a different paper tray or with a different type of paper, if available, to rule out paper-related issues.

When to Call a Specialist

You should consider calling a specialist if, after performing all the DIY troubleshooting steps, the 117.370 error persists. This is particularly true if you cannot locate any physical paper jam, or if the sensor appears clean and unobstructed. Persistent errors often point to a faulty fuser exit sensor, damaged wiring, or a more complex issue within the fuser unit or main control board. These components typically require specialized tools and expertise for diagnosis and replacement, and attempting to repair them yourself could void warranties or cause further damage.

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RICOH Error Code 117.370