Charge Rollers
Enbi are global charge roller manufacturers with over 75 years of experience, producing high-performance rollers for OEM printing and imaging systems worldwide. Enbi charge rollers are designed to deliver consistent, uniform charge distribution for superior image quality and reliable printer performance.
What is a Charge Roller?
A charge roller is a crucial component in laser printers and copiers that plays a fundamental role in printing. It transfers an electrical charge to the photoconductive drum or belt, ensuring that toner particles adhere to the drum and are subsequently transferred onto the paper. The charge roller consists of a cylinder or tube-shaped roller typically made of an elastomeric or compound material, often with a semi-insulating coating layer. This roller applies a uniform and controlled charge to the drum or belt, enabling precise and accurate reproduction of text and images on the printed page. High-quality charge rollers are reliable, durable, and capable of maintaining consistent electrical charge throughout their lifespan, resulting in consistent and professional print output.
Primary Charge Roller (PCR)
The Primary Charge Roller is responsible for distributing static charge to the OPC drum and removing residual static, preparing it for the next print job. It typically comprises a metal shaft and a conductive elastomer with a semi-insulating coating, enabling efficient and reliable charge transfer.
Transfer Roller
The Transfer Roller transfers toner particles from the imaging drum onto the paper. Composed of a metal shaft and a rubber or elastomeric material, it applies pressure to ensure a consistent and efficient toner transfer, resulting in sharp and clear images.
Pickup Rollers
Pickup Rollers grip and pick up paper from the paper tray and advance it through the printer. Made from durable rubber or composite materials, they ensure smooth paper feeding and prevent multiple sheet feeding or paper jams.
Specification overview
Manufactured to strict electrical and dimensional tolerances with full lot traceability.
Why choose Enbi charge rollers?
Formulated for consistent electrical performance and long service life to eliminate charge-related print defects.
Stable electrical conductivity
A charge roller provides stable electrical conductivity, ensuring consistent and reliable performance. This stability is crucial in maintaining the accuracy and quality of printed documents.
Even static distribution
The charge roller distributes static to the OPC drum, applying an opposing charge to attract and hold toner particles. This ensures toner is evenly distributed on the drum, resulting in sharp and clear prints.
Protects the OPC drum
The charge roller prevents arcing damage. A semi-insulating coating acts as a barrier, preventing electrical discharge between the roller and the drum and ensuring the longevity of both components.
Product imagery
Where charge rollers are used
Found in the toner cartridge or drum unit of every contact-charge electrophotographic device.
Toner cartridge manufacturing
OEM and remanufactured cartridge assembly for mono and color laser printers and copiers.
Drum unit remanufacturing
High-volume drum unit rebuild programmes requiring consistent charge roller performance and exact dimensional fit.
High-yield cartridge programmes
Extended-yield cartridges where the charge roller must maintain performance over significantly higher page counts.
Looking for a compatible charge roller?
Provide your cartridge model number or roller dimensions and our team will supply a direct-fit replacement with validated electrical specifications.
Request a quotation
Tell us about your requirements and our engineering team will provide a tailored solution.