Inkjet Print Head Alignment Using Rotated Image Portions

The patent replaces the mechanical centering device with a digital image processing system. Instead of using physical elements to rotate and shift the manufactured article, the system uses software to detect the article's position, calculate alignment parameters, and adjust the printing process accordingly. This substitution eliminates physical contact that could damage the article while maintaining alignment accuracy through computational methods.

The patent implements a dynamic alignment system that detects the position of the exposed surface in real-time and dynamically adjusts the printing parameters. The system uses vision sensors to continuously monitor the article's position and automatically modifies the printing coordinates, enabling both high flexibility and high speed without the mechanical constraints of movable print heads.

The patent changes the approach from storing multiple pre-processed image versions to dynamically transforming a single reference image. The system detects the surface inclination angle and applies real-time geometric transformations (rotation, scaling, perspective adjustment) to the original image, allowing unlimited adaptability to different orientations without increasing memory requirements or limiting image selection.

The patent replaces complex mechanical centering devices with a simpler vision-based detection and software-based alignment system. The system uses standard cameras and image processing algorithms to detect article position and orientation, then compensates through digital coordinate transformation. This approach achieves high alignment precision using common computer components rather than sophisticated mechanical equipment.