Machine vision solution for print inspection. Printing responds to the process and result of reproduction, typically by ink, of texts and images. Its main functions are:

Provision of global and specific information on each product.

Printing of codes for traceability control.

Significant improvement of the final presentation of the product.

Therefore, printing is an omnipresent process in any industrial sector, consequently its verification becomes a very common and important need to ensure the provision of the information and quality required for the finished product.

Printing inspection on paper (print inspection).

Normally the printing is done at high speeds and continuous roll (indefinite length), with these properties the solution apparently points to a system composed of linear cameras, however, in this case, a compact sensor (CIS) is used with a sensorized array structure with individual telecentric projection, a factor that eliminates the always unwanted lateral distortion and ideal for applications that require a high and homogeneous resolution throughout the field of view.

The result: a high frequency and high resolution acquisition that enables a qualitative control capable of analyzing the printed product section by section and using software tools to determine the defects generated by this process.