Resetting the Error Code 42 on a Ricoh SG 3120

Understanding Error Code 42 on the Ricoh SG 3120

Error Code 42 is a common diagnostic flag that appears on the control panel of Ricoh SG 3120 office printers and scanners. It usually signals a problem with the paper path or the print head assembly, but the exact cause can vary depending on the printer’s operating environment, usage patterns, and firmware status. When you encounter this error, the device will halt all print and scan functions until the fault is resolved. This guide will walk you through identifying the root cause, troubleshooting the issue, and performing a full reset to clear the error code.

What Error Code 42 Actually Means

The Ricoh diagnostic system uses a set of numbered codes to indicate specific hardware or firmware failures. Code 42 is most often associated with:

• Paper Jam: A mis‑fed or stuck sheet in the input tray or middle rollers.
• Paper Path Obstruction: Foreign objects (clips, tape, broken staples) blocking the rollers.
• Roller Wear or Misalignment: The main feed or fuser rollers may be worn, warped, or mis‑aligned.
• Print Head Failure: In some models, a malfunctioning print head or a cartridge fault triggers the same code.
• Sensor Fault: A defective sensor that detects the presence of paper or the status of the rollers.

Because the SG 3120 has a compact, integrated design, a single sensor can generate a generic “paper path” error, which manifests as Error 42. Therefore, a systematic approach is needed to isolate the true cause.

Preliminary Checks Before Resetting

Before you reset the device, perform these quick checks to rule out obvious causes.

1. Inspect the Paper Tray

   • Remove the tray, open it fully, and look for any curled, folded, or torn sheets.
   • Check the rollers for visible wear, cracks, or residue.

2. Clear the Paper Path

   • Open all access panels: front, back, and top.
   • Carefully pull out any foreign objects or torn paper.
   • Use a flashlight to inspect the rollers and guide rails.

3. Verify the Media

   • Ensure you are using the correct paper type and size specified by Ricoh for the SG 3120.
   • Make sure the paper stack is level and not overloaded.

4. Check the Print Head

   • Remove and reinstall the print head cartridge if the printer is a multi‑function unit that uses a detachable print head.
   • Inspect the cartridge for damage or a mis‑aligned connector.

5. Examine the Sensors

   • Use a clean, lint‑free cloth to wipe the sensors that detect paper presence and roller position.
   • If a sensor appears dirty or covered with dust, gently clean it with a soft brush.

These steps often resolve the error without requiring a full reset. If the problem persists after clearing the path and verifying the media, proceed to the reset procedure below.

Step‑by‑Step Reset Procedure

Resetting Error Code 42 clears the fault flag and allows the printer to resume normal operation. Follow these steps carefully:

1. Power Cycle the Device

   • Press the power button to turn the SG 3120 off.
   • Wait 30 seconds.
   • Turn the printer back on.

   A simple power cycle often clears temporary glitches. If the error persists, continue.

2. Clear the Error via the Control Panel

   • Once the printer boots, the error display should still show “42.”
   • Press the Menu button on the control panel.
   • Use the arrow keys to navigate to Device Management → Reset.
   • Select Reset All Errors (or Clear Error depending on firmware).
   • Confirm the action when prompted.
   • The display should update to “Ready”.

   If the option to reset is grayed out, the printer may be in a locked state due to a deeper fault.

3. Reset the Firmware Settings

   • Still in the Device Management menu, choose Factory Reset.
   • This will restore all configuration settings to their original defaults, including page limits, duplex settings, and network configurations.
   • Confirm the reset and wait for the printer to reboot.

   This step is optional but recommended if the error code recurs after a simple reset.

4. Run a Self‑Diagnostic Test

   • From the main menu, select Device Information → Diagnostics → Print Test Page.
   • The printer will attempt to print a test page.
   • If the test page prints successfully, the error has been cleared.

   A successful test indicates that the paper path and print head are functioning properly.

5. Monitor for Recurrence

   • Observe the printer for the next 15–30 minutes of operation.
   • If the error reappears, the underlying issue has not been fully addressed.

   If the error recurs, the printer may need professional servicing.

Advanced Troubleshooting When the Error Persists

If the error code continues after a reset, the problem is likely more serious. Use the following advanced steps to dig deeper.

Inspect and Replace Rollers

1. Open the Printer Housing

   • Carefully unscrew the rear panel.
   • Locate the feed rollers (usually black or gray).

2. Check Roller Condition

   • Look for smoothness, cracks, or excessive wear.
   • Feel for stiffness; a worn roller will resist rotation.

3. Replace Rollers

   • Purchase OEM replacement rollers from Ricoh or a certified supplier.
   • Follow the manufacturer’s installation instructions: remove the old roller, insert the new one, and reassemble.

Test the Print Head

1. Remove the Print Head Cartridge

   • Open the cartridge compartment and gently pull the cartridge out.
   • Inspect the pins and connector for damage or misalignment.

2. Clean the Print Head

   • Use a soft, lint‑free cloth dampened with distilled water or the recommended cleaning solution.
   • Wipe gently along the nozzle surface.

3. Reinstall and Test

   • Insert the cartridge back, ensure it clicks into place.
   • Run another diagnostic test to confirm functionality.

Verify Sensor Calibration

1. Locate the Sensors

   • The SG 3120 has a paper presence sensor and a roller position sensor.
   • They are usually mounted near the input tray or the main feed path.

2. Calibrate or Replace Sensors

   • If the sensor is not responding correctly, use the printer’s built‑in calibration routine (found under Device Management → Diagnostics → Sensor Calibration).
   • If calibration fails, replace the sensor module with an OEM part.

Firmware Update

Outdated firmware can sometimes cause erroneous error codes. Update to the latest version:

1. Download Firmware

   • Visit the Ricoh support website and download the latest firmware for SG 3120.

2. Transfer to USB

   • Copy the firmware file to a USB flash drive.
   • Insert the USB into the printer’s USB port.

3. Update via Control Panel

   • Navigate to Device Management → Firmware Update.
   • Follow on‑screen prompts to complete the update.

4. Restart and Test

   • After updating, reboot the printer and run a test page.

Preventive Maintenance Tips

Once you have resolved Error 42, keep your Ricoh SG 3120 running smoothly by following these best practices:

• Regularly Clean Rollers: Dust and debris accumulate quickly. Use a soft, dry cloth to wipe rollers every two weeks.
• Use High‑Quality Paper: Stick to Ricoh‑approved paper types and keep the supply level within recommended limits.
• Maintain Proper Humidity: Excess moisture can cause paper curling; keep the office environment between 40 % and 60 % humidity.
• Schedule Periodic Firmware Checks: Update firmware at least twice a year or whenever Ricoh releases a new patch.
• Avoid Overloading Trays: Exceeding the tray capacity leads to jams and can trigger error codes.

Common FAQs

Q: Does Error 42 always mean a paper jam?
A: While most often related to the paper path, it can also indicate a print head or sensor fault. Always inspect all potential sources.

Q: Can I bypass the error without resetting?
A: No. The SG 3120’s safety systems require an error reset before it will resume printing to protect the hardware.

Q: Is the reset permanent?
A: Resetting clears the current error flag. The same fault can re‑trigger if the underlying issue remains.

Q: How long does a factory reset take?
A: Typically less than a minute. The printer will reboot and display “Ready” once complete.

Q: Should I replace the print head if the error recurs?
A: If repeated resets do not resolve the error, the print head or its driver may be defective and should be inspected or replaced by a qualified technician.

When to Contact Ricoh Support

If you have performed all the steps above and the error still appears, or if you notice additional symptoms such as:

• Unusual noises from the printer
• Smell of burnt toner
• Stuck or jammed rollers that cannot be removed

It is time to reach out for professional help. Contact Ricoh’s support hotline or submit a service request online. Provide them with:

• Your printer’s serial number
• The full diagnostic log (accessible via Device Management → Diagnostics → Log File)
• A description of the troubleshooting steps you have already completed

Ricoh’s support team can guide you through advanced diagnostics or arrange a technician visit.

Final Thoughts

Error Code 42 on the Ricoh SG 3120 is a clear signal that the printer’s paper path or print head system needs attention. By systematically inspecting the paper feed, rollers, sensors, and print head, and then resetting the error flag, you can often restore full functionality. Regular maintenance and timely firmware updates further reduce the likelihood of recurring issues. Should the problem persist, professional service is the safest way to protect both your equipment and your workflow.