
Power Board for HP LaserJet P1005 Series
Description
The Power Board for HP LaserJet P1005 Series is a replacement power-supply and engine-control PCB designed for compatible HP LaserJet P1000-series monochrome laser printers. HP service documentation identifies this component as an Engine Control PCB Assembly, with RM1-4601-000 and RM1-4602-000 used for different mains-voltage configurations. RM1-4601 is commonly associated with 110-127V printers, while RM1-4602 is the 220-240V version typically required in countries using approximately 230V mains power, including Sri Lanka. The board performs critical printer-engine and electrical-control functions, including power conversion and distribution, fuser-heater switching, motor and sensor control, paper-feed sequencing and communication with the formatter PCB. A faulty power or engine-control board can result in complete power failure, intermittent shutdowns, failure of the printer engine to initialize, fuser-related errors, abnormal motor operation or unstable printer behaviour. Because the P1005 uses separate formatter and engine-control PCBs, this board should not be confused with the formatter board, which handles USB communication and print-data processing. Before purchasing, customers should verify the exact RM1 part number printed on their existing board and confirm the required input-voltage version. Professional installation is recommended because the board handles mains voltage and high-current fuser circuitry and may retain dangerous electrical charge even after the printer is unplugged.
Key Features
- Replacement power / engine-control board for HP LaserJet P1005
- RM1-4602-000 220-240V version
- RM1-4601-000 110-127V alternative version
- Controls printer-engine electrical functions
- Controls power distribution within the printer
- Interfaces with the fuser-heating circuit
- Controls printer motors
- Processes paper-path sensor signals
- Coordinates paper-feed timing
- Communicates with the formatter board
- Suitable for printer repair and refurbishment
- Professional installation strongly recommended



