Replacement Roller Unit for HP ScanJet B series (MPN 618J9A)

Replacement Roller Unit for HP ScanJet B series is a genuine HP spare part designed to restore reliable paper feeding and transport in compatible ScanJet B scanners. Intended as a direct replacement for worn or damaged rollers, this unit helps reduce misfeeds and feeding errors to maintain scanning throughput in office and home environments. The roller unit fits into the scanner's paper path and works with the device's existing feed mechanism to re-establish consistent sheet separation and transport.

Advantages

This genuine replacement roller unit restores original feeding performance and reduces the frequency of paper jams and double feeds. Using a manufacturer-designed component helps preserve scanner reliability and image quality while maintaining compatibility with the device's paper sensors and transport timing. The part is engineered for straightforward installation and long service life under normal office scanning loads.

Suitable for

• Routine maintenance of HP ScanJet B series scanners
• Resolving paper feeding errors, misfeeds and double-feed issues
• Improving scanning reliability in small office or home office environments
• Replacing worn rollers after extended scanner use

Key specifications

• Compatibility: Designed for HP ScanJet B series scanners
• Function: Paper feed and transport roller assembly
• Construction: Manufacturer-specified materials for consistent grip and wear resistance
• Installation: User-replaceable following scanner service instructions
• Durability: Suitable for routine office scanning workloads

How to use

Power off the scanner and follow the manufacturer’s service instructions to access the paper path. Remove the old roller unit according to the scanner guide, taking care to note the orientation and any retaining clips. Install the replacement roller unit into the same location, ensuring it seats correctly and any clips or fasteners are secured. Reassemble the scanner panels, power on the device and run a test scan or feed test to confirm smooth paper transport and correct operation.

Recommendations

Perform visual inspection of the roller surface periodically; replace the roller unit when wear, glazing or hardened material is visible or when feeding problems reappear. Use manufacturer-recommended cleaning procedures on adjacent feed components and avoid using torn, heavily creased, or damp media to prolong roller life.