The CET R&D team has achieved a major breakthrough in toner cartridge structural design through hundreds of rigorous tests and verifications focused on core parameters such as toner fluidity and consumption rate. This innovation has secured multiple patents in China, the U.S., and Europe, establishing a comprehensive global intellectual property protection system. These systematic innovations not only significantly enhance product performance, they also provide customers with safe technical solutions to avoid IP risks and deliver more competitive choices to the market.
Core Patent Innovations
Toner Outlet Structure & Cartridge
CET’s innovative toner outlet mechanism achieves three core breakthroughs—uniform toner distribution, efficient toner delivery, and residual toner control—through an optimized internal cartridge structure and more efficient delivery pathways. Uniform toner distribution ensures stable print quality, eliminating color shifts caused by toner accumulation. The high-efficiency delivery design significantly increases printing speed, while the reduced residual toner rate minimizes consumable waste, lowering customers' overall operational costs.
China Patent No.: CN108089418B (Invention Patent)
U.S. Patent No.: US11181850B2
Europe Patent No.: EP3800509B1
Linkage Conveying Mechanism
To address issues of part wear and high maintenance costs in traditional cartridge structures, CET employs an innovative low-resistance linkage transport system. By optimizing material composition ratios and surface treatment processes for transmission components, mechanical friction is significantly reduced, protecting critical parts from toner particle abrasion. This design lowers failure rates, extends product lifespan, and reduces consumable replacement frequency.
China Patent No.: CN115407629B (Invention Patent)
China Patent No.: CN215340699U (Utility Model Patent)
U.S. Patent No.: US12298677B2
Toner Outlet Switching Device
CET's unique toner outlet valve design effectively prevents toner leakage caused by valve closure failures. Featuring a simple structure and easy installation, CET’s valve design thoroughly protects the internal machine mounting structures while enhancing user experience.
China Patent No.: CN115616878A (Invention Patent, Under Substantial Examination)
China Patent No.: CN215729289U (Utility Model Patent)
From delivery efficiency to device durability, and from safety protection to user experience, CET's new patented toner cartridge design technologies redefine industry standards through systematic innovation. Toner cartridges incorporating these patented designs are compatible with multiple best-selling Canon models, delivering superior, efficient, and reliable solutions to the office imaging market.