Liquid dispensing amount control apparatus and control method thereof and inkjet printing apparatus

A liquid dispensing amount control apparatus comprising:

• at least one nozzle;
• and
• at least one heating device,
• wherein the heating device is configured to heat a position of liquid dispensed from the nozzle to form a droplet,
• the at least one heating device is at least one light irradiation device, wherein the light irradiation device is configured to shine a light on the position of liquid dispensed from the nozzle to form the droplet,
• the light irradiation device comprises a light source, a controller, and an adjuster,
• wherein the light source is configured to emit the light;
• wherein the controller is configured to calculate the position of the dispensed liquid where the light shines to form the droplet based on an amount of the liquid required for the droplet;
• and
• wherein the adjuster is configured to adjust the light emitted from the light source to shine on the calculated position of the dispensed liquid,
• the adjuster is an angle conversion device, and
• the angle conversion device is a piezoelectric ceramic control element, wherein one end of the piezoelectric ceramic control system is fixedly connected with one end of the light source.