Description

Media Sensor – RM3-7859 for HP LaserJet M208–M236 Series / Canon MF & LBP Series

Part Number: RM3-7859
Component Name: Media Detection Sensor / Paper Type Sensor
Function: Detects media presence, type, and alignment in the print path
Condition: OEM-Compatible | High-Precision | No Warranty (if applicable)

✅ Compatible Printer Models:

HP LaserJet Single Function Series:
• HP LaserJet M208dw / M208
• HP LaserJet M209dw / M209dwe
• HP LaserJet M211d

HP LaserJet Multifunction Series:
• HP LaserJet MFP M232dw / M232dwc
• HP LaserJet MFP M233dw / M233sdn / M233sdw /M233
• HP LaserJet MFP M234dw / M234dwe / M234sdn / M234sdne / M234sdw / M234sdwe
• HP LaserJet MFP M236d / M236dw / M236sdn

Universal Compatibility:
• HP LaserJet 208 / 209 / 211 / 232 / 233 / 234 / 236 Series

Canon Laser Series:
• Canon LBP122dw / LBP122
• Canon imageCLASS MF275dw / MF272dw / MF275 / MF272
LBP121dn ,LBP122dw ,MF271dn ,MF272dw ,MF274dn ,MF275dw
lbp122 ,mf271, mf274, mf272, mf275

Product Description:
The RM3-7859 Media Sensor is a critical internal component that detects the presence and type of paper media fed into the printer. It ensures correct media handling, improves print quality, and prevents misfeeds or paper type mismatch errors. This OEM-compatible replacement sensor restores original printer performance, especially after sensor wear or logic failures.

Ideal for Repair Issues Like:

• “No paper” or “paper mismatch” error messages

• Paper not detected during feed

• Misaligned prints or incorrect media handling

• Sensor damage due to dust or hardware fault

Highly recommended for printer service engineers, repair technicians, and parts resellers targeting HP’s compact LaserJet series and Canon equivalents.

RM3-7859 media sensor, HP M208 paper sensor, HP M209dw media detector, M233dw sensor replacement, Canon LBP122dw media sensor, MF275dw paper sensor part, HP M234sdn type sensor, HP LaserJet 236dw sensor board, MFP media detect sensor HP, RM3-7859 compatible printer list