How to Fix Error Code SC400 on Ricoh MP C300 Printer?

May 23, 2026 3 min read 1,297 views

Fix Ricoh SC400 Error Code

Ricoh sc400 error

Ricoh error code SC400 is a process control error generally caused by a dirty image density (ID) sensor. Ricoh printers are known for their high-quality printing and low and affordable cost.

The following factors can also Become the Cause of the Ricoh SC400 Error Code;

Dirty ID sensor.
Defective IOB.
Defective BCU.
Defective LD unit.
Defective CGB/PPG power pack.
Non-functional ID sensor.

The Ricoh SC400 error is generally caused by a dirty image density (ID) sensor. You can clean the sensor yourself if you are experienced enough or contact professionals at Ricoh printer and follow their instructions.

It can help you to save time and money which would have been otherwise wasted on a technician or service centre. If the ID sensor of the printer is dirty, it can cause further problems like colour misalignment issues.

ricoh sc400 error code

You can follow the process below to carefully clean the ID sensor of your Ricoh printer.

Use a dry, lint-free cloth and carefully wipe down all five sensors.
You can also use alcohol to clean the sensors, but make sure every bit of alcohol is wiped off,
You can also use canned air if you can’t reach the sensors.
As a precaution, do not use any oil-wrapped cloth to wipe the sensors.
After cleaning the sensors, reboot your printer.
If the problem still persists, it’s time to replace the ID sensor board.

Some Other Methods to Resolve Error Code SC400 on Ricoh MP C300 Printer;

With the help of a flashlight, check the paper tray of your printer and see if there is no obstruction that may be causing this error.
Check the inkhead and see if the cartridges are properly installed or if the ink level is at a certain level to print.
Reset all the printheads of the printer.

If you still have doubts in your mind or you are unable to resolve this issue by yourself, you can contact the Ricoh printer team where you will be attained by well-trained professionals and experts who will guide you through an easy process to resolve your Ricoh sc400 error issue within a short time frame. The engineers at Ricoh printer can be availed at any time of day or night since they are vailable24*7 for the service of their customers.

The ID sensor comprises a set of five sensors, located on the ID sensor board. The ID sensor board is located inside the front door of your Ricoh MP C300 Printer. In our content, we are defining the following procedures to clean your ID sensor. The manual shows you the procedure for removing the ID sensor board; you don't need to do all of those steps just to clean it.

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FAQ for Fix Error Code SC400 on Ricoh MP C300 Printer

Q1. What causes the SC400 error Ricoh MP C300 printer to show this code? Ans: The Ricoh SC400 error code usually pops up due to toner density sensor issues, dirty developer unit, or internal electrical faults. Cleaning the sensor and checking the developer unit can help fix the SC400 Ricoh error.

Q2. How do I fix the Ricoh SC400 error on my printer? Ans: To fix the SC400 Ricoh error, clean the toner density sensor, check the developer unit, and reset the printer. If the Ricoh SC400 error code persists, a professional service may be needed.