For MP 2555 SP/3055 SP/3555 SP models
For MP 4055 SP/5055 SP/6055 SP models
“+24V” goes through the BCU and is converted to “+5VS” on the IPU. “+5VS” is supplied to the LD Board. The interlock switch turns off when the front cover or the right door is opened. As a result, the power supply (“+24VS”) to the BCU is cut off.
This system prevents unexpected laser emission, and ensures user safety and technician safety.