Method and apparatus for image forming effectively detecting deterioration of developer

Assignee

• Ricoh Company

Inventors

• Junichi Matsumoto (202 patents)
• Nobuo Iwata (107 patents)
• Satoshi Muramatsu (114 patents)
• Nobutaka Takeuchi (76 patents)
• Takayuki Koike (19 patents)
• Eriko Maruyama (7 patents)

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