FIELD: communication equipment.
SUBSTANCE: device to reproduce images or graphical patterns in general on large surfaces, comprising: a support frame provided with at least a first guide along a first direction and at least a second guide along a second direction. At least one printing system movable with respect to said support frame. At least one first motor means designed to move said at least one printing system along said first direction and at least one second motor means designed to move said printing system along said second direction. Optical viewing system associated with said support frame and able to recognise position of portion of image already executed, and to recognise possible reference signs affixed in step when said portion of image was executed, in order to allow correct positioning of device so as to execute adjacent portion of image that has to be executed next. Control unit able to divide into a plurality of sub-portions an image or graphical pattern to be reproduced, to command said printing system to execute, in a first reproduction step, a first of said sub-portions and one of said reference signs so as to allow the positioning of said support frame using said reference signs for execution of a second of said sub-portions.
EFFECT: improved quality of reproduction.
8 cl, 7 dwg
