Patent ID: 6315392
Filing Date: 2001-11-13
Classification: B41J

Abstract:
A printer comprising:a carriage;a first printhead mounted in the carriage, said first printhead underprinting black ink in a first carriage scan direction;a second printhead printing black ink mounted in the carriage;a third printhead mounted in the carriage, said third printhead underprinting black ink in a second carriage scan direction, the third printhead located on a first side of the second printhead, and the first printhead located on a second side of said second printhead;a print zone in which ink from the first, second and third printheads is deposited as the carriage scans across the print zone, the print zone having a left boundary and a right boundary, ink from the first, second and third printheads being deposited within the left and right boundaries of the print zone; anda print controller coupled to the carriage, the print controller restricting scanning of the carriage across the print zone such that said second printhead does not go beyond the left boundary and the right boundary of the print zone.