Patent ID: 6267518
Filing Date: 2001-07-31
Classification: B41J

Abstract:
An ink-jet printing apparatus for forming an image on a printing medium using a printing head, said apparatus comprising:transporting means for transporting the printing medium;first printing means, opposing one surface of the printing medium transported by said transporting means for forming an image on the one surface, at an image forming position, by applying a printing agent on the one surface of the printing medium using a printing head;second printing means, opposing the other surface of the printing medium, and provided on a transporting path rearward of the image forming portion of said first printing means, for forming an image on the other surface by applying a printing agent on the other surface of the printing medium using a printing head; andregistration control means for registering at least the image formed on the other surface relative to the image formed on the one surface of the printing medium by said first printing means,wherein said first printing means includes:a carriage having printing heads with respect to a plurality of colors:scanning means for moving said carriage, on one surface of said printing medium, in a forward direction different from a transporting direction of said printing medium, whereinsaid first printing means drives said printing heads to form an image during movement of said carriage by said scanning means; andwherein said second printing means includes:a carriage having printing heads with respect to a plurality of colors;scanning means for moving said carriage, on one surface of said printing medium, in a forward direction different from a transporting direction of said printing medium;wherein said second printing means drives said printing heads to for an image during movement of said carriage by said scanning means; andwherein said registration control means includes means for registering an image position at least by said second printing means so that the position in said transporting direction is consistent with the position in said forward direction.