Rm1-2316 Schematic -

: Designed for 220V–240VAC operation (+/- 10%).

⚠️ The large primary bulk filter capacitor can hold a dangerous electrical charge long after the AC power cord has been disconnected. Always measure the voltage across its leads with a multimeter and safely discharge it through a high-wattage resistor before handling the PCB. Rm1-2316 Schematic

Symptom 3: Voltage Sag or Cyclic Ticking Sound (Power Supply Cycling) : Designed for 220V–240VAC operation (+/- 10%)

I can give you step-by-step diagnostic advice for your exact scenario. Canon LBP 2900B Laser Printer Power Supply Board Problem Rm1-2316 Schematic