Patent ID: 11972314
Assignee: CANON KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. An image forming apparatus comprising:
an image forming unit configured to form an image on a sheet;
a reader configured to read the image formed on the sheet by the image forming unit; and
at least one processor configured to:
determine whether the image formed on the sheet has an image defect based on an image read by the reader and a reference data;
interrupt image forming operation in a case where a number of defective sheets are continuous for a predetermined number of sheets;
identify a cause of defects occurred in the defective sheets;
display recovery procedures on a display;
form a test image after a recovery;
inspect the test image based on image data obtained by the reader reading the test image; and
resume the image forming operation in a case where an inspection result of the test image is OK.