cylinder cleaning

Hey all, We have been having issues with our dampening roller/ spray bar giving us splotchy water marks on one of our half decks. We have changed out the roller, checked bearings and hardness, set to "Goss spec", changed spray bar nozzles, and done just about everything we could think of. One...

Hi All, We run a print shop with the following presses: Heidelberg QM DI 46/4, QM 46/2 and a QM46/1 Please could anyone offer advice on the following: 1. How to clean/maintain the impression cylinder - our impression cylinders appear dull and sometimes develop stains/lines around the...