Resolving "Following unit order" error (SC990-00) on Ricoh Aficio MP4002 SP
If you've been encountering the "Following unit order" error (SC990-00) on your Ricoh Aficio MP4002 SP for the past four months, you're not alone. This error can occur randomly every 12 or so prints, making it a frustrating issue to troubleshoot. In this article, we'll cover the key concepts related to this error and provide some potential solutions.
Understanding the error
The "Following unit order" error (SC990-00) on the Ricoh Aficio MP4002 SP is typically caused by a miscommunication between the printer's various components. This can be due to a variety of factors, including outdated firmware, dirty sensors, or a malfunctioning print head.
Potential solutions
Here are some potential solutions to try if you're encountering this error:
- Update the firmware: Outdated firmware can cause a variety of issues on printers, including the "Following unit order" error. Check the Ricoh website for the latest firmware version for your printer and follow the instructions to install it.
- Clean the sensors: Dirty sensors can cause the printer to misinterpret signals, leading to errors like the "Following unit order" error. Use a soft, lint-free cloth to gently clean the sensors on your printer, being careful not to apply too much pressure or use any liquids.
- Check the print head: A malfunctioning print head can cause a variety of issues, including the "Following unit order" error. Check the print head for any signs of damage or blockages, and clean or replace it if necessary.
- Reset the printer: If all else fails, try resetting the printer to its factory settings. This can often resolve issues caused by misconfigured settings or software glitches.
The "Following unit order" error (SC990-00) on the Ricoh Aficio MP4002 SP can be a frustrating issue to deal with, but there are several potential solutions to try. By updating the firmware, cleaning the sensors, checking the print head, and resetting the printer, you may be able to resolve the error and get back to printing without interruption.
References
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