Printing apparatus, control method, and a non-transitory computer-readable storage medium

A printing apparatus including a conveyance mechanism configured to convey a sheet and a printhead configured to execute printing by discharging ink onto the sheet, comprising:

• a printing control unit configured to control driving of the printhead and the conveyance mechanism;
• a first trigger generation unit configured to generate a first trigger in synchronism with a sheet conveyance speed by the conveyance mechanism;
• and
• a second trigger generation unit configured to generate a second trigger at predetermined intervals,
• wherein the printing control unit performs first control of causing the printhead to print an image based on image data on a sheet while causing the conveyance mechanism to convey the sheet, and
• second control of causing the printhead to print a discharge inspection pattern on a sheet while causing the conveyance mechanism to convey the sheet,
• in the first control, the printhead is driven based on the first trigger, and
• in the second control, the printhead is driven based on the second trigger.