Inspection machine and process

Comprises at least a first paper detecting unit machine, the the first calibration device with the conveying and detecting printing paper's detecting drum (4); Lighting device (5) and a analysis device connected with the camera (6); A printing paper tool is at least one detecting input unit is provided with more paper drum (3); And a printing paper tool also comprises a paper drum from the output at least one test unit and (17). The test unit and reverse sensor for paper drum is arranged and then, wherein examined and bar is provided with more paper drum (17) and a examined the printing paper is placed on.