Patent ID: 6149260
Filing Date: 2000-11-21
Classification: B41J

Abstract:
An ink jet recording apparatus, comprising:a printing head; anda driver connected with said printing head, said driver being for applying signals to said printing head,wherein said printing head is capable of ejecting ink droplets onto the recording medium to form dots on a recording medium in any of a plurality of differing dot sizes in response to signals applied by said driver, each dot size in said plurality of differing dot sizes differing from other dot sizes in said plurality of differing dot sizes,wherein said plurality of differing dot sizes includes a low level range of dot sizes and a high level range of dot sizes, with dot sizes in said high level range being larger than dot sizes in said low level range, andwherein a change in dot size between adjacent dot sizes in said low level range is less than a change in dot size between adjacent dot sizes in said high level range.