Reset all the printheads of the printer.Check the inkhead and see if the cartridges are properly installed or the ink level is at certain level to print.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.Some Other Methods to Resolve Error Code SC400 on Ricoh MP C300 Printer If the problem still persists, it’s time to replace the ID sensor board.After cleaning the sensors, reboot your printer.As a precaution, do not use any oil wrapped cloth to wipe the sensors.You can also use canned air if you can’t reach the sensors.You can also use alcohol to clean the sensors, but make sure every bit of alcohol is wiped off,.

Use a dry, lint-free cloth and carefully wipe down all the five sensors.

You can follow the process below to carefully clean the ID sensor of your Ricoh printer. If the ID sensor of printer is dirty, it can cause further problems like color misalignment issues. It can help you to save your time and money which would have been otherwise wasted on a technician or service center. You can clean the sensor yourself if you are experienced enough or contact professionals at Ricoh printer and follow their instructions. The Ricoh SC400 error is generally caused by a dirty image density (ID) sensor. Following Factors can also Become the Cause of Ricoh SC400 Error Code Ricoh printers are known for their high-quality printing and low and affordable cost.

Ricoh error code SC400 is a process control error generally caused by a dirty image density (ID) sensor.

Ricoh mpc2551 id sensor board