Image forming apparatus and a method of effectively detecting toner state in the same

• Main Author: ISHIBASHI MIKIO
• Format: Patent
• Language: English
• Published: 21.12.2010
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

An image forming apparatus includes an optical sensor configured to optically detect a density of a reference pattern image, a toner density sensor configured to detect a density of toner in a developing unit, a storing unit configured to store an image area coverage of an output image, a determinin...