Description

🏷️ Product Title

Main Motor for HP LaserJet Pro M403 / 400 Series – Part No. RM-9531

📝 Short Description

Replacement main drive motor for HP LaserJet Pro printers.
Controls paper movement, drum rotation, and overall print mechanism timing.
Ideal fix for grinding noise, paper feed failure, or motor error issues.

📝 Product Description

The Main Motor (Part No. RM-9531) is the primary drive motor responsible for powering the paper feed system, fuser drive, drum rotation, and internal gear assemblies in HP LaserJet Pro printers.

A failing main motor may cause printer not starting, loud grinding noise, paper not moving, inconsistent printing, motor error codes, or complete printer halt. Replacing the main motor restores synchronized mechanical operation and stable printer performance.

This component is widely used in professional service centers, enterprise AMC maintenance, and refurbishment operations.

Designed for printers manufactured by HP and compatible Canon models listed below.

⚙️ Compatible Printer Models

🔹 HP LaserJet Pro – Single Function

• M305 (M305 / M305dw)

• M402 (M402n / M402dn / M402dw / M402dne)

• M403 (M403 / M403d / M403dn / M403dw / M403n)

• M404 (M404n / M404dn / M404dw)

• M405 (M405n / M405dn / M405dw)

• M501dn

🔹 HP LaserJet Pro – MFP

• M329 (M329dn / M329dw)

• M426 (M426dw / M426fdn / M426fdw)

• M427 (M427dw / M427fdn / M427fdw)

• M428 Series

• M429 (M429fdw)

🔹 HP New Generation / Managed / Enterprise

• 4004 (4004 / 4004n / 4004dn / 4004dw)

• MFP 4104 (4104 / 4104dw / 4104fdn / 4104fdw)

• M506 (M506n / M506dn / M506x)

• M527 (M527dn / M527f / M527z / M527dnm / M527cm / M527c)

• E52545 (E52545dn / E52545c)

🔹 Canon Compatible Models

• imageCLASS MF424dw / MF426dw / MF543x

• LBP214dw / LBP226dw

• i-SENSYS MF521dw / MF522x / MF525dw

• imageRUNNER 1643i

📌 Grouped Model Reference

HP Series:
305 – 329 – 402 – 403 – 404 – 405 – 426 – 427 – 428 – 429 – 4004 – 4104 – M501 – M506 – M527 – E52545

Canon Series:
214 – 226 – 424 – 426 – 521 – 522 – 525 – 543 – 1643i

🔍 Technical Details

• Product Name: Main Motor

• Part Number: RM-9531

• Type: Compatible

• Function: Drives paper feed, drum & fuser mechanisms

• Voltage: OEM-spec (as per printer model)

• Condition: New

• Application: Laser printer drive system

• Installation: Technician recommended

⭐ Key Features

• ✔ Exact replacement for RM-9531

• ✔ Restores smooth mechanical operation

• ✔ Fixes noise, feed failure & motor errors

• ✔ High-torque, long-life motor design

• ✔ Perfect compatibility with listed HP & Canon models

⚠️ Important Note

• Please confirm printer model and motor part number before ordering

• Gear alignment and lubrication are critical during installation

• Installed or used motors are not returnable

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