Shift Register Print Mode Adaptation for Liquid Discharge

The patent applies dynamics by making the shift register configuration adaptable between two operational modes: a first configuration for high-quality multi-gradation printing and a second configuration for faster printing. The control circuit dynamically reconfigures the shift register's data holding capacity and discharge control signal generation based on the selected print mode, allowing the system to transition between quality-oriented and speed-oriented operation.

The patent implements parameter changes by modifying the data size held in the shift register and the number of discharge control signals generated. In the first print mode, the shift register holds larger data sizes (first data size + second data size + third data size) to enable multi-gradation control. In the second print mode, it holds smaller data sizes (first data size + second data size) for faster processing, directly changing the data parameters to resolve the contradiction between quality and speed.

The patent applies segmentation by dividing the shift register into multiple regions (first region, second region, third region) that can be selectively activated. The first region holds the first data size, the second region holds the second data size, and the third region holds the third data size. By segmenting the data storage and selectively using only the necessary regions based on print mode, the system reduces unnecessary data processing while maintaining quality when needed.

The patent implements partial action by using only the necessary portion of the shift register's data holding capacity for each print mode. For standard printing, only the first and second regions are utilized, leaving the third region inactive. This partial usage of the available data storage capacity reduces processing overhead while maintaining sufficient quality for most printing scenarios.