Lexmark Platinum Pro Pro905 The 905 is fully capable all-in-one device for business, but its touch screen could throw a wrench in your workflow. Smart Solutions to add widgets to customize the virtual control panel, but still had some buttons in the hope of Lexmark hard too. As worst of all in the family of Lexmark, the Platinum Pro 905 does the job, but the HP Officejet Pro 8500 not …