Printer with adjustable sliding plane

An ink jet printer for printing a substrate in textile, paper, polymeric or other material, the printer comprising:

• a support structure comprising two side;
• a transfer apparatus slidable for advancing the substrate in an advancement direction, the transfer apparatus comprising a conveyor belt and a stationary support plane, wherein the conveyor belt comprises an outer surface intended to contact the substrate and an inner surface intended to contact the stationary support plane;
• a print device arranged in proximity of the outer surface of the conveyor belt and comprising a print head operating along a print direction perpendicular to the advancement direction;
• retaining means suitable for maintaining the substrate adherent and fixed with respect to the conveyor belt;
• means for adjusting the transfer apparatus;
• wherein:
• the stationary support plane comprises two side ends;
• and
• the side ends of the stationary support plane rest on the side walls of the support structure;
• the printer being characterized in that the adjusting means of the transfer apparatus comprise at least a side adjusting assembly placed between one of the side walls and the respective side end of the stationary support plane.