Doctor blade assemblies are designed to optimize blade usage and reduce maintenance time in printing operations. This system replaces traditional wide doctor blades with a modular setup, consisting of a blade holder, a 10×0.102mm narrow doctor blade, and an 8×0.152mm wide back-up blade. The entire assembly is installed in the same position as a conventional wide doctor blade but offers a more efficient and cost-effective replacement process. Once installed, routine blade changes only require removing and replacing the 10mm-wide narrow doctor blade, eliminating the need to frequently replace the entire blade assembly. This design helps reduce downtime, lower material costs, and improve overall print consistency.