On the mainframe. The photo of the nameplate of Heidelberg printing machine is seen next to the brand logo on the main body. Photos of the nameplate of Heidelberg printing machine can be found next to the logo of the printing machine body, including the specific model and performance parameters. Heidelberg Printing Machine Heidelberg Printing Machinery Co., Ltd. is a leading solution provider in the printing media industry and has occupied more than 40% of the global sheet-fed printing machine market.