Dear Faurc .. I have a question. How critical is the input paper adjustment ? On conventional offset printings a "minimum de-adjustment" on the tray of the input paper makes a mess on the result as the ink will not mix correctly ... Being Riso a duplicator, is this adjustment done somehow in software or so ?? ( I am a mon color Riso user since the eighties when they introduced the machine in the market ) I am not retired but I sold hundreds of Riso to the angolan schools and some other clients.