Inline Printing and Coding Specialists. For over 55 years, BELL-MARK has been developing innovative solutions for package and carton printing applications in the medical device, pharmaceutical, prepared foods, meat, bakery, dairy and poultry packaging industries. BELL-MARK offers many in-line printing technologies including full color inkjet, thermal transfer, flexographic, and ink coder, all of which satisfy requirements to print directly onto package and carton substrates.