Rm1-2316 Schematic

When a repair is necessary, you can typically choose between three types of replacement parts:

Pin9 DRV1 ---[22Ω]--- Gate of IRF540 (Primary MOSFET) Source of IRF540 ---[0.1Ω]---(Pin13 CS) + GND Drain of IRF540 --- Primary of ferrite transformer

The HP service manual (part number Q5911-90945) is the official document that describes the function of the RM1-2316 within the printer and is the best source for understanding its role and the signals it exchanges with other boards. Rm1-2316 Schematic

When a printer fails to power on or exhibits erratic behavior, the RM1-2316 power supply is often the culprit. Here's how a schematic can guide the repair process:

Since no public datasheet exists, you can characterize an unknown RM1-2316 via these steps: When a repair is necessary, you can typically

Often acts as an inertial fuse. It is a frequent point of failure and can be difficult to identify as a protective element at first glance. Q501 (2SK2900 Power FET):

Inspect the high-voltage step-up ceramic capacitors and the physical spring contacts under the PCB. Dried out or bulging output filter capacitors. It is a frequent point of failure and

The RM1-2316 is a high-voltage used primarily in several popular monochrome laser printers. Specifically, it serves as the main power supply for the HP LaserJet 1018 and HP LaserJet 1020 series printers . Additionally, due to the internal hardware similarities between HP and Canon engines during this era, the RM1-2316 is also found in Canon LBP-2900 and LBP-3000 laser printers .

Rectify the high-frequency transformer pulses into a clean +24V DC line.

The RM1-2316 is a Low-Voltage Power Supply (LVPS) board that serves as the central electrical hub for the printer. It converts AC mains electricity (

Disconnect the fuser power connectors (thick white wires) and the thermistor/sensor connectors (thin wires) from the DC controller board.