Patent ID: 6793420
Filing Date: 2004-09-21
Classification: B41J,G06K,H04N

Abstract:
A printing system comprising a plurality of printers, a densitometer and a printer control unit, wherein each printer of said plurality of printers includes:a printer head for printing at a density that is based upon print-density adjustment data applied thereto; and a first controller for controlling said printer head so as to print density adjustment paper that includes unique identification information, which is different from that of other printers among said plurality of printers, and density measurement information; said densitometer includes: a first reading unit for reading the identification information on the density adjustment paper that has been output from said printer and outputting data representing the read identification information; and a second reading unit for reading the density measurement information on the density adjustment paper that has been output from said printer and outputting data representing a read density measurement value; and said printer control unit includes: a generating unit for generating print-density adjustment data based upon density measurement data that has been output from said second reading of said densitometer; and a second controller for applying the print-density adjustment data generated by said generating unit to a printer, which is specified by identification information data that has been output from said first reading unit, from among said plurality of printers.