Patent ID: 9662901
Date: 2017-05-30
CPC Classifications: B41J

Claim:
1. A control method for a printer, comprising: controlling a first group of heating units of a printing head to output first printing energy to form printing dots with a first density on a printing medium, wherein the first printing energy is printing energy output by the first group of heating units heating according to corresponding bits of first dot matrix data, and the first dot matrix data is dot matrix data obtained by processing received printing data; and controlling a second group of heating units of the printing head to output second printing energy to form printing dots with a second density on the printing medium, wherein the second printing energy is printing energy output by the second group of heating units heating according to corresponding bits of second dot matrix data, and the second dot matrix data is dot matrix data obtained by processing the first dot matrix data and configured for printing energy compensation, wherein the second group of heating units consists of heating units that need to implement printing energy compensation in the first group of heating units, wherein, in the process of controlling the second group of heating units of the printing head to output second printing energy to form printing dots with a second density on the printing medium, heating units that need not implement printing energy compensation in the first group of heating units are not required to output the second printing energy, wherein controlling the first group of heating units of the printing head to output the first printing energy to form the printing dots with the first density on the printing medium comprises: wherein controlling the second group of heating units of the printing head to continue outputting the second printing energy to form the printing dots with the second density on the printing medium comprises: