Patent ID: 9061496
Filing Date: 2015-06-23
Classification: B41J

Abstract:
1. A printer comprising: a first printing unit configured to apply a first recording material on a print medium to form a first set of dots on the print medium; a second printing unit configured to apply a second recording material on the print medium, with the first set of dots formed by the first printing unit, to form a second set of dots on the print medium; a memory storing in advance a table holding a first number of drops to form each dot in the first set of dots to form a code image and a second number of drops to form each dot in the second set of dots to form the code image, wherein the first number of drops is less than a maximum number of drops required to form one dot of an image in the first set of dots, and wherein the maximum number of drops is preset based on the print medium, and the second number of drops is preset in association with the first number of drops; and a controller configured to control the first and second printing units, wherein the controller is configured, in printing the code image contained in an inputted image data, to drive the first printing unit to form each dot in the first set of dots on a respective pixel of the code image contained in the inputted image data with the first number of drops held in the table stored in the memory, and wherein the controller is configured, in printing the code image contained in the inputted image data, to drive the second printing unit to form each dot in the second set of dots in a position between two adjacent dots from the first set of dots in a width direction of a region with a width of two or more pixels having the first dots formed by the first printing unit with the second number of drops held in the table stored in the memory.