Hi deedeevij,
Thank you for using the Support Forum. The paper specifications for the machine show a maximum paper size of A3 (297 x 420 mm). I see no way to extend that to 1200mm. Please consider contacting your support centre for further assistance.
I’m using a DocuCentre 4475 and i want to print paper with 320mm x 1200mm in size, but maximum lenght when i custom paper is 483mm. can someone tell me how to print 1200mm in lenght??please help..