The code on Ricoh devices (most commonly seen in MP C2003, C2503, and similar color series) is defined as a Toner Supply Motor Error .
Always plug high-volume production copiers into dedicated outlets featuring line conditioners to safeguard the mainboards from voltage spikes.
(often a U-shaped sensor) may be dirty or faulty due to prolonged exposure to high heat. Motor Malfunction
However, ignoring the code or using improper reset methods can lead to catastrophic fuser meltdown, damaging pressure rollers, bearings, and even the printer’s plastic frame. Always diagnose the mechanical cause before resetting.
Here is a simplified flowchart of the process: