An information processing apparatus includes a hardware processor that: detects a defect that occurs when an image processor performs an image process on process data; produces verification data when the defect is detected during the image process, wherein the verification data is formed in a case that at least one portion of the process data, to be processed by the image processor, is changed and causes a same defect that occurs during the image process on the process data; and externally outputs the verification data instead of the process data.