YC pen offers various printing services for promotional pens including pad printing and silkscreen printing. They have the latest machinery and quality control to provide the best logo printing results. Their printing process involves cleaning products before printing, using conveyor belts and individual setting boxes to speed ink drying and avoid scratches. They can automatically silkscreen print in up to 8 colors with high production capacity. Customers can select logos printed in 1 to 8 colors. Additional services include logos on metal pens, laser engraving on metal and bamboo pens, and printing on other plastic products.