The is the official part number for the 220V–240V Power Supply Board (also known as the Low Voltage Power Supply or Engine Control Board) used in several popular monochrome laser printers, most notably the HP LaserJet 1020 and the Canon LBP2900 series.
Runs primarily on +3.3V for high-speed processing and +5V for legacy sensor logic.
Once past the line filter, the AC voltage is bridged into raw, high-voltage DC: Converts AC into pulsating DC.
If you are working on a specific board layout, tell me what (like blinking light patterns or a dead power switch) so I can help you isolate the faulty component on the board. Share public link
┌─────┐ VIN ─┤1 6├─ VCC GND ─┤2 5├─ OUT (to MOSFET gate) FB ─┤3 4├─ RT/CT (oscillator) └─────┘
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Form RC filters to clean up noisy signal lines coming from mechanical switches. 4. Troubleshooting Common Failures Using the Schematic Symptom 1: No Power / Completely Dead Printer
Trace the sensor signal line back to the microcontroller pin. Ensure the voltage toggles cleanly between 0V (blocked) and 3.3V/5V (open) when manually tripping the sensor flag. Symptom 3: Fatal Error / Motor Unresponsive
If the board is severely damaged (e.g., burnt traces), replacing the entire board (Part # RM1-2316-000CN) is usually more efficient than component-level repair. These boards are available as new or tested used parts.
Understanding the RM1-2316 Schematic: A Guide to HP LaserJet Power Board Repair HP LaserJet 1018 Go to product viewer dialog for this item.
This switch should be closed. If it is open, the fuser has overheated previously, requiring a full assembly replacement or reset. B. Troubleshooting Print Quality Issues
Toner rubs off the page, indicating low heat. Paper Jams: Frequent jams directly inside the back door. Noises: Grinding or squeaking sounds coming from the rear. 2. RM1-2316 Schematic Breakdown (Key Components)
or similar), bridge rectifier, and main electrolytic capacitor.
: RM1-2316 (Primary 220V regional variant), RM1-2315 (110V variant), RM2-0373 / RM2-8086 (Cross-compatible iterations). Input Voltage Range : 220V to 240V AC (+/- 10%) at 50/60 Hz.
Check the fuser power output connector for signs of overheating or burnt contacts. 4. Replacement and Maintenance
Physically, the RM1-2316 is a printed circuit board (PCB) of moderate size, mounted inside the printer's chassis. Its key external features include:
